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Proprioceptive kinaesthetic control underpins motor movements of developing children and can be influenced by several factors. The main aim of this study was to establish proprioceptive kinaesthetic coordination differences in six-year-olds from different school quintiles, of different genders, and with different handedness. A total of 193 six-year-olds from 10 schools of different quintiles in the Motheo District, Mangaung, were included, of which 97 (50.3%) were boys and 96 (49.7%) were girls. A quantitative cross-sectional study design was followed to determine proprioceptive kinaesthetic coordination differences. Right-handed participants performed significantly better than left-handed participants in the Finger-to-Nose task (p = 0.0125) when moving and positioning their dominant arm and hand. When using their dominant arm, significant differences in the shoulder-level-arm-raise (p = 0.0288) favoured boys. Girls showed superior execution of the force perception task (p = 0.0322). In conclusion, significant proprioceptive kinaesthetic coordination differences in six-year-olds were mainly not evident. Future work should explore proprioceptive kinaesthetic coordination differences in children of other ages and determine the practical implications of identified differences.

Amateur music education, which individuals pursue with a hobbyist spirit based on their own desires and interests, can be defined as music education received for personal enjoyment. In Turkey, it is observed that individuals engaged in amateur music education mostly focus on instrumental training, with the violin being one of the most preferred instruments. In the process of violin education, which holds significant importance in both professional and amateur instrumental training, the identification and resolution of issues related to the right hand is crucial for a healthy progression of the education process. This study, which aims to examine various right-hand problems encountered by amateur violin students and to offer solutions, uses a mixed-methods approach that collects and analyzes data from both qualitative and quantitative sources. The related literature was examined in the qualitative portion of the research to identify the right hand-based challenges faced in amateur violin education and to expose the current state of the problem. The quantitative data utilized in the study were gathered by the researcher's examination of the participants' video recordings (n=10)in which they perform assigned musical exercises that require different bowing techniques. The six relevant items of the "String Performance Rating Scale" developed by Zdzinski and Barnes (2002) were used in the evaluation of the participants' video recordings. Based on the obtained data, solution proposals were developed for resolving the issues related to the right-hand technique.

For the effective expression of feelings and thoughts, handwriting should be produced fluently at a certain speed. The aim of this study was to examine the development of handwriting speeds in 4th-8th grade primary and secondary school students in terms of some variables. In line with this aim, answers were sought to the question, "Do 4th-8th grade primary and secondary school students' handwriting speeds differ significantly depending on their grade, gender, hand preference, and handwriting style?" The study was designed in the survey method, and the study group consisted of 322 students attending the 4th, 5th, 6th, 7th, and 8th grades of primary and secondary school. A form developed by the researchers for all grade levels was used as the data collection tool in the study. In the data collection process, the students were required to copy a given text within one minute. The research results revealed that while the primary and secondary school students' handwriting speeds differed significantly according to their grade level, gender, and handwriting style, they did not differ significantly according to their hand preferences. As the grade level increased, mean handwriting speeds also increased. Female students wrote faster than male students. Students using the manuscript handwriting style wrote faster than students who used the cursive handwriting style.

The main aim of the present study was to identify motor difficulties in Greek preschoolers. Secondary aims were to identify possible differences in prevalence of motor difficulties related to gender, age, body mass index, place of residence, and hand preference. 302 preschoolers were assessed using the first age band (3-6 years) of the Movement Assessment Battery for Children (2nd edition). The results showed high prevalence of significant (12.3%) and moderate (12.3%) motor difficulties in preschool children. Moreover, gender, age, BMI, residence, and hand preference effects showed no statistically significant differences (p > 0.05) and need further consideration among preschool children. However, there was evidence that some differences may exist between boys and girls, 4- and 5-year-old children, children with high and typical body mass index, children living in rural or urban areas, and right and left-handed children, regarding the occurrence of motor difficulties. These findings highlighted the need for early assessment in domains of motor development, such as hand dexterity, ball skills and balance in order for developmentally appropriate preschool physical education programs to be applied, with the aim to help preschoolers improve their difficulties and be physically active later in life.

This paper examines the link between cognitive processes and superior performance in contemporary dance. In the first study, thirty-six participants (professional dancers, nonprofessional dancers, and non-dancers) carried out a task in which they were asked to reproduce a sequence of dance steps while being recorded on a camcorder. Analysis revealed a significant effect of skill and task difficulty on performance. Performance correlated with individual practice, group practice, rehearsing hours, sleep, concentration, enjoyment, dyslexia, and height, but not handedness. In the second study, the same group of participants augmented by 26 participants (a total of 62 participants) completed a questionnaire. There were skill differences on deliberate practice, sleep, concentration, enjoyment of dance tasks, dyslexia, handedness, and gender differences on group practice and height. Overall, the results suggest that both practice and talent play a role in the acquisition of expertise in contemporary dance.

Previous research has shown a strong positive association between right-handed gesturing and vocabulary development. However, the causal nature of this relationship remains unclear. In the current study, we tested whether gesturing with the right hand enhances linguistic processing in the left hemisphere, which is contralateral to the right hand. We manipulated the gesture hand children used in pointing tasks to test whether it would affect their performance. In either a linguistic task (verb learning) or a non-linguistic control task (memory), 131 typically developing right-handed 3-year-olds were encouraged to use either their right hand or left hand to respond. While encouraging children to use a specific hand to indicate their responses had no effect on memory performance, encouraging children to use the right hand to respond, compared to the left hand, significantly improved their verb learning performance. This study is the first to show that manipulating the hand with which children are encouraged to gesture gives them a linguistic advantage. Language lateralization in healthy right-handed children typically involves a dominant left hemisphere. Producing right-handed gestures may therefore lead to increased activation in the left hemisphere which may, in turn, facilitate forming and accessing lexical representations. It is important to note that this study manipulated gesture handedness among right-handers and does therefore not support the practice of encouraging children to become right-handed in manual activities.

Research has shown that nonright-handedness in children with developmental coordination disorder (DCD) is associated with poorer motor and cognitive performance. This study investigated the influence of degree and direction of handedness on performance using the Home Handedness Questionnaire, the Hitthe-Dot test, the Movement Assessment Battery for Children, and the digital TrailMaking Test. Eighteen children with DCD and 21 typically developing children aged 8--12 years participated in this study. The distribution of degree and direction of handedness in the group of DCD children were not different from that found in the typically developing group. In the Hit-the-Dot test, typically developing children significantly performed better than children with DCD, no matter which hand was dominant or to which degree. A significant inconsistent-handed advantage in the subdomain balance was found for children with DCD. Inconsistent handedness also seems to be an advantage for children with DCD on the digital Trail-Making Test performance. The relationship between the subcategories of the Movement Assessment Battery for Children and the digital Trail-Making Test part B is stronger for consistent than for inconsistent handedness. Our findings suggest that children with DCD and inconsistent handedness might benefit from greater crosstalk across hemispheres. In addition, these predispositions can be reinforced or discouraged throughout development and via occupational therapy.

This study investigated the influence of phonological word representations from both first language (L1) and second language (L2) on third language (L3) lexical learning in L1-dominant Spanish-English bilinguals. More specifically, we used event-related potentials (ERPs) to determine whether L1 Spanish and L2 English phonology modulates bilinguals' brain response to newly learned L3 Slovak words, some of which had substantial phonological overlap with either L1 or L2 words (interlingual homophones) in comparison to matched control words with little or no phonological overlap. ERPs were recorded from a group of 20 Spanish-English bilinguals in response to 120 auditory Slovak words, both before and after a three-day-long learning period during which they associated the L3 Slovak novel words with their L1 Spanish translations. Behaviorally, both L1 Spanish and L2 English homophony facilitated the learning of L3 Slovak words in a similar manner. In contrast, the electrophysiological results of the post-training ERPs, but not the pre-training ERPs, showed an N100 effect for L2 English interlingual homophones and opposite N400 effects for L1 Spanish and L2 English interlingual homophones in comparison to control words. These findings suggest different neurocognitive mechanisms in the use of L1 and L2 phonological information when learning novel words in an L3.

Handedness has been studied for association with language-related disorders because of its link with language hemispheric dominance. No clear pattern has emerged, possibly because of small samples, publication bias, and heterogeneous criteria across studies. Non-right-handedness (NRH) frequency was assessed in N = 2503 cases with reading and/or language impairment and N = 4316 sex-matched controls identified from 10 distinct cohorts (age range 6-19 years old; European ethnicity) using a priori set criteria. A meta-analysis (N[subscript cases] = 1994) showed elevated NRH % in individuals with language/reading impairment compared with controls (OR = 1.21, CI = 1.06-1.39, p = 0.01). The association between reading/language impairments and NRH could result from shared pathways underlying brain lateralization, handedness, and cognitive functions.

This paper explores the spatial dimension of Fleming's Left Hand Rule (LHR), commonly-used in Physics instruction for determining the direction of force using the left hand's thumb, forefinger and middle finger. A new instrument was developed to gauge students' ability to coordinate their fingers in 3D space (egocentric frame of reference) based on representations of tasks on paper/screen (allocentric frame of reference). The LHR scores from a sample of 530 Grade 10 and 11 students revealed a significant correlation to standard spatial reasoning measures, with a reliability of 0.77. About 90% of the students scored less than 10 points out of 22, highlighting the relevance of the spatial skills required for articulating the LHR. Science students performed significantly better than non-Science students. The manipulation of the LHR was strongly influenced by the degree of angular disparity between the body frame and task-defined frame and the kinaesthetic constraints required to rotate the triad of fingers as a perpendicular frame.

Accounts of embodied cognition suggest that environmental scene and motor information can be used in a type of neural simulation when generating creative uses for manipulable objects. A scarce amount of studies suggests that the state of the body and environment play a role in people's ability to devise creative uses for objects. In this theoretically motivated study, we manipulated the environmental context and adopted a previously used body posture manipulation, while participants performed the alternative uses task (AUT) under general instructions or instructions to describe actions toward or away from the body. We show that the environment and body posture interact to shape performance on the AUT. Specifically, body posture facilitates fluent responding under high fixedness environmental contexts. In addition, describing actions away from the body results in more original AUT responses. Further, we replicate previous findings that higher-creative individuals use different "embodied strategies" than less-creative individuals when generating creative uses for objects. We propose that higher-creative individuals differentially access and navigate an abstract "action space" necessary for simulating creative uses of objects.

Different individuals learn different solutions to the same perceptual-motor task regardless of the fact that they may undergo the same practice conditions. In the current study, we characterized individual solutions to a perceptual-motor task. Eighteen self-declared right-handed participants were requested to intercept a moving target controlling a virtual ball using a computer mouse. Target speed varied across trials. Participants visited the lab 2 days in a row. They practiced 250 trials on Day 1 and 50 trials on Day 2. We assessed participants' preferred speed and maximum speed on both days. We combined a qualitative description of solutions on the task space and the quantitative growth curve analysis to address individual differences. Results indicated an overall trend to increase the ball release speed to handle the task constraints. Moreover, the local shape of the solution manifold constrained individuals' solutions. Contrary to our expectations, neither individual preferred speed nor individual maximum speed improved model fit.

The brain asymmetry and contralateral control of the body by the left and right brain hemispheres is known (Crystal, 1997; Fromkin, 1998). It is widely accepted that language lateralization, damage to the left brain, Magnetic Resonance Imaging (MRI) Positron Emission Tomography (PET) and results show that the left brain is regarded as the language learning center. Yet it is difficult to explain counter evidences such as Phinea Gage, an abbot, and Genie's cases. Besides, it is also important to consider the left handed people's cases. It does not matter whether the learnt language is L1 or L2; supposing that the language learning center is strictly limited to (lateralized) only the left hemisphere, it was difficult to explain how the left handed people have learned their L1 or L2. Hence this study investigated how undergraduate students learn the main and sub-skills of ELT according to hand-usage (left or right), study style (individual or group) and gender (male or female) variables. A questionnaire of seven skills including 5 options was applied to 27 left handed and 75 right handed EFL from grade 1 to 4. Fisher's Exact Test (FET) was used to detect the statistical relations among each demographic variable and the students' preference level for each different skill. Although the language learning is usually regarded as main function of the left brain, it was found that left handed students' learning mother and English, visualizing the listened text by the left handed students, visualizing the grammar rules as figure, table and image by most right-handed males, the left handed females' listening music while reading, visualizing the phonetic symbols by the left handed students tend to imply that the right brain has also relation with the language learning. Results were discussed with other findings and some suggestions were posed.

The curriculum used in amateur and professional piano education is shaped according to the physical and mental state of the students. Easy access to piano literature that can be used in case of one hand and/or one arm disability is important in terms of contributing to the students and piano instructors. For this reason, it is aimed to determine the works of contemporary Turkish composers in this field. Turkish composers who passed away in 2000 and after and those who live today were investigated; 146 of 198 composers who were identified were contact online, and it was concluded that 69 composers did not compose one hand piano work and 7 composers composed one hand piano work. Scores, program notes, work descriptions and sound recordings related to one hand piano works were obtained from those composers. It was found that 2 of these works were composed for the right hand, 3 for the left hand and 2 for any of them. It is thought that the limited number of contemporary Turkish one hand piano literature will contribute positively to piano literature, music educators, piano students and performer with physical disabilities.

The aim of this research is to improve the social skills of children in need of protection for 7-12 age groups through visual arts education. In the study carried out within the framework of general purpose, the effect of the activity-based visual arts education program on the social skill levels of children in need of protection for 7-12 age groups is examined. Also, it was investigated whether there was a statistically significant difference regarding the social skill total scores of the children according to gender, parents' being alive, participation in any arts/sports activities and dominant hand use variable. For this purpose, 14 children between the ages of 7-12 who are staying in Üsküdar Hasan Tan Nursery and Küçükyali Children's Houses Site of Turkey Republic Istanbul Governorship constitute the working group. Personal Information Form, Social Skill Assessment Scale (7-12 Age), Visual Arts Education Program were used as data collection tools. According to the findings obtained in the study, it was observed that the study group significantly predicted between the pre-test and post-test scores in favor of the post-test. Within the framework of the personal information form, it was observed that the study group was significantly predicted in favor of the post-test according to parents being alive variable, parental survival variable, participation in any arts / sports activities variable, dominant hand use variable. The findings obtained in the study were discussed in the light of the literature review and some suggestions for future research are presented.

Frequent forced switching between tasks has been shown to reduce switch costs and increase voluntary switch rates. So far, however, the boundary conditions of the influence of forced task switching on voluntary task switching are unknown. Thus, the present study was aimed to test different aspects of generalizability (across items, tasks, and time) of switching-induced flexibility established in forced-choice trials on voluntary switching in free-choice trials. To this end, stimuli and tasks were systematically varied between forced- and free-choice trials in a hybrid task-switching paradigm. In a series of three experiments, we manipulated forced-choice switch probability (25% vs. 75%) and found that switching-induced flexibility generalizes to new items, but arguably not to new tasks. This task-specific effect is rather short-lived, limited to the first free-choice trial following a forced-choice trial. Underlying mechanisms of switching-induced flexibility, the versatility of flexibility and implications for the trainability of cognitive flexibility are discussed.

Vector cross product transformations are essential components in general physics. The numerous mnemonic devices catered towards each potential transformation result in confusion, defeating their purpose of reducing learning barriers. Therefore, a general mnemonic device, subject-environment interaction or the subject, is proposed to help students in determining the resulting vector direction of various vector cross products.

EEG microstates represent transient electrocortical events that reflect synchronized activities of large-scale networks, which allows investigations of brain dynamics with sub-second resolution. We recorded resting EEG from 38 children and adolescents with Autism Spectrum Development (ASD) and 48 age, IQ, sex, and handedness-matched typically developing (TD) participants. The EEG was segmented into a time series of microstates using modified k-means clustering of scalp voltage topographies. The frequency and global explained variance (GEV) of a specific microstate (type C) were significantly lower in the ASD group compared to the TD group while the duration of the same microstate was correlated with the presence of ASD-related behaviors. The duration of this microstate was also positively correlated with participant age in the TD group, but not in the ASD group. Further, the frequency and duration of the microstate were significantly correlated with the overall alpha power only in the TD group. The signal strength and GEV for another microstate (type G) was greater in the ASD group than the TD group, and the associated topographical pattern differed between groups with greater variations in the ASD group. While more work is needed to clarify the underlying neural sources, the existing literature supports associations between the two microstates and the default mode and salience networks. The current study suggests specific alterations of temporal dynamics of the resting cortical network activities as well as their developmental trajectories and relationships to alpha power, which has been proposed to reflect reduced neural inhibition in ASD.

Can a single adjective immediately influence message-building during sentence processing? We presented participants with 168 sentence contexts, such as "His skin was red from spending the day at the …" Sentences ended with either the most expected word ("beach") or a low cloze probability completion ("pool"). Nouns were preceded by adjectives that changed their relative likelihood (e.g., "neighborhood" increases the cloze probability of pool whereas "sandy" promotes beach). We asked if participants' online processing can be rapidly updated by the adjective, changing the resulting pattern of facilitation at the noun, and, if so, whether updates unfold symmetrically--not only increasing, but also decreasing, the fit of particular nouns. We measured event-related potentials (ERPs) to the adjective and the noun and modeled these with respect to (a) the overall amount of updating promoted by the adjective, (b) the preadjectival cloze probability of the noun and, (c) the amount of cloze probability change for the obtained noun after the adjective. Bayesian mixed-effects analysis of N400 amplitude at the noun revealed that adjectives rapidly influenced semantic processing of the noun, but did so asymmetrically, with positive updating (reducing N400 amplitudes) having a greater effect than negative updating (increasing N400s). At the adjective, the amount of (possible) updating was not associated with any discernible ERP modulation. Overall, these results suggest the information provided by adjectives is buffered until a head noun is encountered, at which point the access of the noun's semantics is shaped in parallel by both the adjective and the sentence-level representation.

The aim of this study is to examine dominant hand usage and detect the injury regions in racket sports. A total of 98 athletes, of which 37 (37.8%) are female, 61 (62.2%) are male, studying at 11 different universities and attending competitions with schools teams with an average age of 21.11±1.66, height of 1.71±0.08 cm, weight of 64.92±10.85 kg, and BMI of 22.00±2.41(kg/m2 ) have participated in the study. When it comes to the distribution of the athletes by branches, the sample consists of 22 table tennis players, 24 badminton players, 25 tennis players and 27 squash players. The "Edinburgh Inventory Hand Preference Survey" was used as a data collection tool to determine the hand preferences of the athletes. In the determination of sports injuries suffered by athletes, the Cornell Musculoskeletal Discomfort Questionnaire was administered. There are significant differences between the lefty and righty athletes in terms of injuries in the left shoulder, left wrist and right lower leg regions when the injury regions in racket sports are compared by hand preferences (p<0.05). It is seen that the injuries that occur in right forearm, left wrist and the right upper leg regions of the athletes of racket sports differ according to branches (p<0.05). When the injury regions are examined according to hand preferences, it is seen that the injuries in the left shoulder, left wrist and lower right leg regions occur more in lefty athletes in comparison to righty athletes. When the relationship between the injury region regions and sports branches is examined, it can be argued that table tennis players suffer more frequent injuries in the left wrist compared to the players of other branches.

The processing of time activates a spatial left-to-right mental timeline, where past events are "located" to the left and future events to the right. If past and future words activate this mental timeline, then the processing of such words should interfere with hand movements that go in the opposite direction. To test this hypothesis, we conducted 3 visual lexical decision tasks with conjugated (past/future) verbs and pseudoverbs. In Experiment 1, participants moved a pen to the right or left of a trackpad to indicate whether a visual stimulus was a real word or not. Grammatical time and hand movements for yes responses went in the same direction in the congruent condition (e.g., past tense/leftward movement) but in opposite directions in the incongruent condition. Analyses showed that space-time incongruency significantly increased reaction times. In Experiment 2, we investigated the role of movement in this effect. Participants performed the same task by responding with a trackpad or a mouse, both of which required lateral movement through space, or a static keypress. We again obtained the space-time congruency effect, but only when the decision required movement through space. In Experiments 1 and 2, stimuli were preceded by a temporal prime. In Experiment 3, participants performed the same task without any prime. Results replicated the congruency effect, demonstrating that it does not depend upon temporal word priming. Altogether, results suggest automatic activation of a left-right mental timeline during word recognition, reinforcing the claim that the concept of Time is grounded in movement through space.

This is the first study to investigate the effects of test methods (while-listening performance and post-listening performance) and gender on measured listening ability and brain activation under test conditions. Functional near-infrared spectroscopy (fNIRS) was used to examine three brain regions associated with listening comprehension: the inferior frontal gyrus and posterior middle temporal gyrus, which subserve bottom-up processing in comprehension, and the dorsomedial prefrontal cortex, which mediates top-down processing. A Rasch model reliability analysis showed that listeners were homogeneous in their listening ability. Additionally, there were no significant differences in test scores across test methods and genders. The fNIRS data, however, revealed significantly different activation of the investigated brain regions across test methods, genders, and listening abilities. Together, these findings indicated that the listening test was not sensitive to differences in the neurocognitive processes underlying listening comprehension under test conditions. The implications of these findings for assessing listening and suggestions for future research are discussed.

The aim of this experiment was to determine if dyad practice helped individuals become aware, use, and retain information in a dynamically changing perceptual-motor task compared with practice alone. We used a computerized perceptual-motor task, where individuals were required to intercept balls that dropped from the top of the screen. A colored line at the top of the screen provided information about the direction of the dropping ball. Participants (N = 24) were randomly assigned to one of two groups: A dyad training group where two participants alternated between physical and observational practice after each block of 20 trials, and they also engaged in dialog about the task, and an individual training group where one participant practiced the task. Both groups improved their accuracy during acquisition. On the retention test, participants in the dyad group caught significantly more balls (73%) than individuals of the alone group (58%). Participants in the dyad group also showed a higher percentage of correctly identified stimuli in the recognition task. Dyad training induced performance advantages in a perceptual-motor task because individuals became aware and used information acquired during observation and/or from the dialog.

Adults, preschool children, and infants gesture more with their right hand than with their left hand. Since gestures and speech are related in production, it is possible that this right-hand preference reflects left-hemisphere lateralization for gestures and speech. The primary purpose of the present study was to test if children between the ages of 6 and 10 years show a right-hand preference in referential gestures while telling a story. We also tested four predictors of children's degree of right-hand preference: 1) bilingualism, 2) language proficiency, 3) age, and 4) sex. Previous studies have shown that these variables are related to the degree of speech lateralization. Twenty-five English monolingual (17 girls; M[subscript age?]=?8.0, SD[subscript age?]?=?1.4), 21 French monolingual (12 girls; M[subscript age]?=?7.3, SD[subscript age]?=?1.4,) and 25 French-English bilingual (11 girls; M[subscript age?]?=?8.5, SD[subscript age?]?=?1.4) children watched a cartoon and told the story back. The bilinguals did this once in each language. The referential gestures were coded for handedness. Most of the participants showed a right-hand preference for gesturing. In English, none of the predictor variables was clearly related to right-hand preference. In French, the monolinguals showed a stronger right-hand preference than the bilinguals. These inconsistent findings across languages raise doubts as to whether the right-hand preference is linked to lateralization for speech.

Signs in sign languages have been mainly analyzed as composed of three formational elements: hand configuration, location, and movement. Researchers compare and contrast lexical differences and similarities among different signs and languages based on these formal elements. Such measurement requires extensive manual annotation of each feature based on a predefined process and can be time consuming because it is based on abstract representations that usually do not take into account the individual traits of different signers. This study showcases a newly developed tool named DistSign, used here to measure and visualize variation based on the wrist trajectory in the lexica of two sign languages, namely American Sign Language (ASL) and Ghanaian Sign Language (GSL), which are assumed to be historically related (Edward 2014). The tool utilizes the pretrained pose estimation framework OpenPose to track the body joints of different signers. Subsequently, the Dynamic Time Warping (DTW) algorithm, which measures the similarity between two temporal sequences, is used to quantify variation in the paths of the dominant hand's wrist across signs. This enables one to efficiently identify cognates across languages, as well as false cognates. The results show that the DistSign tool can recognize cognates with a 60 percent accuracy, using a semiautomated method that utilizes the Levenshtein distance metric as a baseline.

The present study performed a systematic comparison of DSM-5 and ICD-11 diagnostic criteria for reading disability. We quantitatively investigated the consequences of using DSM-5 or ICD-11, and of the different ways of implementing each diagnostic criterion on the prevalence of reading disability. We did so in a representative sample of the population of French sixth-graders (N = 25,000), using a reading comprehension test to assess reading ability. A compromise set of criteria and thresholds yielded a prevalence of 6.6% according to DSM-5 and 3.5% according to ICD-11. Factors that had the greatest influence on prevalence estimates were the criteria relative to IQ and to interference with academic performance. Compared with the reference population, children with reading disability were more likely to be boys (sex ratio˜1.6), to be schooled in a disadvantaged area (OR[approximately equal to] 2.1), and to have lower SES (d[approximately equal to] -0.7), non-verbal IQ (d[approximately equal to] -0.4 - -0.9), and math scores (d[approximately equal to] -1.4). Our results emphasize that the choice of classification and the operationalization of diagnostic criteria have a large impact on who is diagnosed with reading disability.

The aim of this study was to investigate how test methods affect listening test takers' performance and cognitive load. Test methods were defined and operationalized as while-listening performance (WLP) and post-listening performance (PLP) formats. To achieve the goal of the study, we examined test takers' (N = 80) brain activity patterns (measured by functional near-infrared spectroscopy (fNIRS)), gaze behaviors (measured by eye-tracking), and listening performance (measured by test scores) across the two test methods. We found that the test takers displayed lower activity levels across brain regions supporting comprehension during the WLP tests relative to the PLP tests. Additionally, the gaze behavioral patterns exhibited during the WLP tests suggested that the test takers adopted keyword matching and "shallow listening." Together, the neuroimaging and gaze behavioral data indicated that the WLP tests imposed a lower cognitive load on the test takers than the PLP tests. However, the test takers performed better with higher test scores for one of two WLP tests compared with the PLP tests. By incorporating eye-tracking and neuroimaging in this exploration, this study has advanced the current knowledge on cognitive load and the impact imposed by different listening test methods. To advance our knowledge of test validity, other researchers could adopt our research protocol and focus on extending the test method framework used in this study.

Hemispheric lateralisation is a fundamental principle of functional brain organisation. We studied two core cognitive functions--language and visuospatial attention--that typically lateralise in opposite cerebral hemispheres. In this work, we tested both left- and right-handed participants on lexical decision-making as well as on symmetry detection by means of a visual half-field paradigm with various target--distractor combinations simultaneously presented to opposite visual fields. Laterality indexes were analysed using a behavioural metrics in single individuals as well as between individuals. We observed that lateralisation of language and visuospatial attention as well as their relationship generally followed a left-right profile, albeit with differences as a function of handedness and target-distractor combination. In particular, right-handed individuals tended towards a typical pattern whereas left-handed individuals demonstrated increased individual variation and atypical organisation. That the atypical variants varied as a function of target--distractor combination and thus interhemispheric communication underlines its dynamic role in characterising lateralisation properties. The data further revealed distinctive relationships between right-handedness and left-hemispheric dominance for language together with right-hemispheric dominance for visuospatial processing. Overall, these findings illustrate the role of broader mechanisms in supporting hemispheric lateralisation of cognition and behaviour, relying on common principles but controlled by internal and external factors.

Background: Roberton's movement components are used to assess fundamental motor skills as segmental developmental sequences. In 1991, Haywood, Williams and VanSant determined that original developmental sequences proposed for the backswing levels of the overarm throw did not encompass all ages. Their study of older throwers identified two new qualitatively different levels, with half the participants categorized at two new levels. This investigation extended the initial validation across a wider age range. Method: Two hundred and twenty-eight primary, high school, university students, and adults were instructed to make five throws for maximum force using their dominant hand. Throws were recorded with side and rear cameras synchronized for analysis. Prelongitudinal screening was used to analyze the Haywood et al. revisions of the Langendorfer developmental sequence. Results: Five of the six levels of Haywood's sequence were suitable for assessing throwers 8 years of age through to adulthood. More study is needed of one less advanced pattern. Lower level throws corresponded to lower velocities; higher level throws were faster, suggesting the sequence was properly ordered. More males than females were classified at higher levels, demonstrating typical gender differences. Discussion: The categories hypothesized for the backswing action of the overarm throw were valid descriptors of differences observed across ages, from childhood to adulthood. Additional study of Levels 3 and 4 is warranted to clarify their order.

In embodied theories of semantic representation, the processes and mechanisms of modal simulations that are engaged during semantic processing have tended to be underspecified. We investigated the possibility that motor imagery may be a mechanism of simulation, using an individual differences approach. In this preregistered study, we assessed motor imagery abilities (n = 161) with implicit and explicit measures and identified two latent factors. We then examined whether those factors account for significant variations in sensorimotor effects observed in three different language tasks: a lexical-decision task, syntactic classification task, and sentence-picture verification task. In the language tasks, when all participants were considered together, we replicated some previously reported sensorimotor effects (e.g., body-object interaction [BOI], effects in semantic processing, wherein words associated with more sensorimotor information were processed more quickly than words associated with less sensorimotor information) and did not replicate others (e.g., BOI effects in the lexical decision task, congruency effects in sentence picture verification task). There were no significant relationships between imagery factor scores and sensorimotor effects. A follow-up analysis using scores from each motor imagery measure revealed a significant interaction between hand movement imagery and BOI effects in the syntactic classification task, with those higher in this imagery ability showing a larger BOI effect. This latter result may suggest that specific types of motor imagery are related to sensorimotor effects in semantic processing; however, further investigation is needed. In general, our findings provide little support for the possibility that motor imagery is an underlying mechanism of sensorimotor simulation during language processing.

Lateralization, which is also known as hand preference, and 2D:4D finger ratio is a sign of prenatal testosterone and known to be associated with strength. The aim of this study is to investigate the relationship between 2D:4D, lateralization and hand grip strength in relation to hand and forearm that are thought to be effective in handball in elite handball players. 67 female and 67 male elite players participated in this study. The height, weight, body-mass index and hand preference of these athletes have been identified and 2D:4D finger measurements and hand grip strength tests were performed. When identifying the preferences regarding lateralization, the hand distribution preference was determined by the Oldfield questionnaire and evaluated using the Geschwind score. After photocopy images of the two hands of the athletes were taken, their finger lengths were measured Hand grip strength was determined by a Jamar hydraulic dynamometer. Strong correlation was found especially between 2D:4D and dominant hand grip strength in male and female elite handball players. The ratio of left-handedness due to the positions of players during the game among male and female athletes has been found to be higher than that of the general population. With regard to gender, 2D:4D was found to be lower in males than females but hand grip was found to be higher in males than females. Besides, a significant correlation between height and BMI with 2D:4D, sport age, height, body weight and hand grip strength was found. This study emphasizes the importance of 2D:4D, handgrip strength and hand preference in handball.

The index finger and the 4th finger ratio (2D:4D) is the indicator of the prenatal testosterone. The aim of this study is to investigate the relationship between 2D:4D, hand preference and hand grip strength in swimmers. A total of 80 elite swimmers, participated in the study. Height, body weight, body mass index (BMI), hand 2D:4D finger measurements and hand grip strength tests were performed for athletes. The hand preference was determined by the Oldfield questionnaire and it was evaluated according to the Geschwind score. The data were recorded in the SPSS 20 program and p<0.05 was considered as statistically significant. It was found that in both men and women, a negative correlation was found between right and left hand 2D:4D and both dominant (DHGS) and non-dominant hand grip strength (NDHGS) values. It was found that men had lower 2D:4D ratio than women. For both right and left handed, there was a statistically significant difference between the right and left hand 2D:4D ratios in both men and women (p<0.05) and the dominant hand (DH) 2D:4D ratios were found to be lower than non-dominant hand (NDH) 2D:4D ratios in both men and women (p<0.05) It can be said that the 2D:4D ratios may be the effect of determining the hand preference, the grip strength and therefore the strength.

This study was carried out to investigate the relationship among the hand, eye, and ear lateralizations and the sense of rhythm of the athletes randomly selected from different sport branches. A total of 115 elite athletes including 72 males (62.6%) and 43 females (37.4%) whose mean age was 22.3 ± 2.4 years and who receive training at different departments of the Faculty of Sports Sciences, Ataturk University were included in the study. Hand preference was assessed based on the Geschwind score by applying Edinburgh Inventory test. The dominant eye was tested by the Dolman Method (hole-in-the-card test). Hearing durations were measured using 128 Hz diapason and digital chronometer. The rhythm perception and application skills were assessed considering the rhythmic answers given practically to the rhythm patterns previously prepared by the researcher. As for the handedness of the athletes, 16.5% of them were left-handed (n = 19), 7.8% (n = 9) were two-handed, and 75.7% (n = 87) were right-handed. While 18.3% (n = 21) had good hearing durations with left ear, and 13.9% (n = 16) had good hearing durations with right ear, 67.8% (n = 78) had very close hearing durations with two ears. While left eye of 41.7% (n = 48) was dominant, the right eye of 58.3% (n = 67) was dominant. According to the rhythm perception and application test results, 46.1% of the athletes were weak (n = 53), 30.4% at the midlevel (n = 35), 13.9% (n = 16) good, and 9.6% (n = 11) at very good level. No significant relationship was found between the eye and ear lateralization of the athletes and their rhythm perception and application skills; however, it was found that the sense of rhythm of the left-handed individuals was better than the right-handed ones with respect to the handedness.

Reversing characters (digits and letters) when writing, and complete mirror writing, raise one of the oldest and most mysterious questions in developmental and educational psychology: Why do five-year-old children write symbols (e.g., [reversed E] for E) they have neither learnt nor seen? Attempts to draw up a complete explanatory theory of character reversal in writings by typically developing children were long hindered by the existence of a seemingly satisfactory explanation (left-hand writing), the failure to bring together research in neuropsychology and educational psychology, and the failure to consider the shape and structure of the characters. The present paper remedies this situation by describing a new, comprehensive theory based on recent neuropsychological findings and extensive empirical observations. The theory assumes that a character's orientation, detected in the early visual processing area, is deleted (or made inaccessible) by the mirror generalization process during transfer to memory. Consequently, there is a period, usually around age five, during which children have representations of the characters' shapes but not their orientations. Hence, when asked to write a character, children have to improvise its orientation, and the orientation they choose (implicitly, non-consciously) is often derived from the writing direction in their culture.

Writing, as a skill of correct graphic design, represents an activity which is very important in each individual's life and work, and the period of elementary school, when writing skills are mastered, is the period when special attention must be devoted to determinants that can affect the process of writing. Gender, literacy phase and writing difficulties are the determinants that have been tested in 1156 elementary school students, and the research was done in the eight Belgrade elementary schools in 2016. Statistically significant differences in the writing tools and materials manipulation skills among students with and without writing difficulties were present. The students without writing difficulties had higher manipulation skills, and the biggest difference was recorded in the effective stabilization of paper with the non-dominant hand (r= 0.000), placing paper under an adequate angle (r= 0.000) and presenting comments and complaints of pain or fatigue (r= 0.000). The strongest statistically significant difference with the presence of difficulties in the writing tools and materials manipulation skills between boys and girls is recorded in the effective stabilization of paper with the non-dominant hand (r= 0.000). Students who are in the process of acquiring literacy skills have the greatest difficulties in the presence of pain or fatigue during writing (23.2% of students). The strongest statistically significant difference in the manipulating skills between students of the first and second grades, compared to the students who have already mastered writing, is in setting up paper at an adequate angle (r= 0.000) and in the presence of pain or fatigue (r= 0.000). Gender, the stage of literacy and writing difficulties are determinants that affect the skill of manipulating writing tools. Thus, studying this problem is very important in order to help students master the skills of writing. Individualization measures, as one of the modes of adapting teaching to the abilities of students, can make this complex process significantly easier for them.

It has been demonstrated that the Simon effect may be increased or reversed due to proportion congruency manipulation, suggesting that learned spatial irrelevant stimulus-response (S-R) associations are used to guide responses. In this study, we tested the hypothesis that learning spatial irrelevant S-R associations by rewards may show a similar modulatory effect on the Simon effect. In two experiments with the Simon task, we manipulated the contingency of stimulus-response-reward between groups. Experiment 1 showed that the Simon effect in both reaction times and error rates increased if potential performance-contingent rewards always followed congruent trials but decreased and was even reversed if rewards always followed incongruent trials. These suggest that participants used reward-strengthened spatially compatible and incompatible irrelevant S-R associations respectively to predict responses. Experiment 2 showed that the data pattern of the increase and reversal of the Simon effect showed in both rewarded and nonrewarded colors, suggesting that reward-strengthened spatial irrelevant S-R associations were used to guide responses even when there were no potential rewards. Together, these results resemble the proportion congruency effect with the Simon task, suggesting that there could be stronger conflict and attentional control when the correct response is different from the response activated by reward-strengthened irrelevant S-R associations. This suggests that reinforcement learning of irrelevant S-R associations can modulate cognitive control.

Deficits in motor performance have been well documented in individuals with Down syndrome (DS). However, only a few studies have focused on manipulative skills and older adults in this population. Given the associations between manipulative skills and daily living activities, more work is needed to examine the aging effect on individuals with DS. A total of 54 adults with DS participated in this study. The results indicated that older participants showed more lateralization than younger participants. They exhibited superior dominant hand preference compared to younger participants. In addition, participants with DS with high verbal ability had better performance in manual dexterity and handgrip force. Therefore, in the clinical setting, assessing mental age may help in identifying individuals with DS at a higher risk of motor impairment. Future work should examine additional determinants with a large sample size to understand the development of manipulative skills in individuals with DS. Furthermore, additional studies are needed to investigate the associations between mental age and other cognitive functions and motor performance in this population.

Individual differences in reading skill have frequently been related to variability in working memory capacity; however, it is unclear what drives this relation. The present study investigated two attentional control mechanisms that may contribute to this relation: proactive control and online filtering. To examine how the neural mechanisms of these processes relate to individual differences in reading, functional magnetic resonance imaging (fMRI) data collected during a novel working memory paradigm was correlated with measures of reading skill. Results indicated that skilled readers deployed greater proactive control resources, as evidenced by more activation in left anterior prefrontal regions, when cued proactively about task-relevant features than less-skilled readers. Additionally, high-vocabulary individuals showed online filtering benefits. These findings provide novel contributions to our understanding about the relation between working memory and reading and suggest that proactive control and attentional filtering mechanisms may play a key role in driving this relation.

The present study aimed to explore the neural-related mechanism of the creative evaluation process in individual with different levels of creativity. The time course of evaluation process for creative objects was monitored by event-related potentials (EPRs). Forty-five participants were divided into the high-creativity performance (HCP) group and the low-creativity performance (LCP) group and then completed a creative object evaluation task. The behavioral results revealed that the HCP group showed higher accuracy rates on the creative object evaluation task than the LCP group did. The ERPs analysis demonstrated that in the early stage of creative object processing, ordinary objects elicited a more negative anterior N2 at 190-340 ms than the creative objects did in the LCP group. In the late stage of creative object processing, creative objects elicited a more positive ERPs deflection in the HCP group than in the LCP group at 350-500 ms and at 500-1000 ms. Taken together, these results indicate that different creativity performance individuals may express different attention patterns or top-down processing strategy in the early stage of creative object evaluation processing; and high-creativity performance individuals can better utilize both cognitive and non-cognitive evaluation processing in the late stage, to process the creative object effectively.

The French National Cohort of Children Study ("Etude Longitudinale Française depuis l'Enfance"--ELFE) tested the literacy and numeracy skills of 4- to 5-year-old typically developing children in the second year of "école maternelle." Tasks were administered by more than 4,000 teachers at schools across France. One of the study's numeracy tasks required participants to write the number of ducks (up to 5) they had counted. Analyzing the digits written by 14,904 children showed that miswritings were much more common for the digit 3 than for the digit 4. This result is consistent with the right-orienting rule, which young children in Western cultures apply when they do not know a digit's orientation, and which leads them to write, for example, [backwards "3"] instead of 3. The nature and frequency of miswritten digits did not differ significantly between the 466 children presumed to have written with their left hand and the 3,531 children presumed to have written with their right hand. However, a logistic mixed-effects regression showed that two other factors--age of entry to "école maternelle" and very early smartphone use--had a (modest) influence on the percentage of digits that were miswritten.

Previous studies using artificial languages suggest that sentence production can be guided by verb-specific as well as verb-general statistics present in the language input. Here we investigated whether the statistical properties of ongoing input in the speakers' native language systematically affected their sentence production. Three experiments used a training-plus production test paradigm to examine whether sentence production comes to rely more on verb-specific biases or on verb-general semantic mappings depending on the relative predictive validities of those cues in the input. We found different patterns in speakers' structural choices and utterance characteristics depending on the relative validity of different cues. These results show that native language production can be updated by new input and suggest that the nature of the updating can be explained at least in part by adopting a cue-validity approach.

Previous research has attempted to understand why countries with relatively favorable conditions and high estimated average IQs (such as Finland and Japan) have a relatively low per capita number of scientific Nobel prizes. In the present study, we examine whether there is a relationship between national schizophrenia and left-handedness prevalence, on the one hand, and per capita scientific and literary achievement, on the other hand, in countries with IQ estimates of at least 90. We found that per capita science and literature Nobel prizes and scientific publications are strongly negatively associated with schizophrenia and strongly positively correlated with left-handedness. There also was a very pronounced negative correlation between schizophrenia rate and left-handedness rate. These results suggest that genius can be regarded as a combination of very high IQ, aspects of high-functioning autism (specifically low empathy) plus relatively low impulse control, consistent with observations of intellectually outstanding individuals, and the fact that schizophrenia appears to constitute the opposite pole of these aspects of autism spectrum. We posit differences in androgen levels as a possible underlying explanation for these findings.

70 soccer players in Gaziantep amateur league voluntarily participated in this study, (average of their ages 19,17±1,34years, average of their heights 181,28±5,06 cm, average of their body weights 76,75±4,43 kg and average of their sports experiences 3,78±0,95 years) to analyze visual and auditory reaction times and aerobic capacities of amateur soccer players according to their playing positions. The reaction times against light and sound of right and left hands were measured by 'Newtest Reaction Timer.' The aerobic capacity measurements of players in this study were determined by shuttle sprint test. In comparison of left and right hand reaction times, it was statistically found that goalkeepers had the best reaction times and midfielders had better reaction times than forwards and defenders (P<0,05). In comparison of aerobic capacities of their playing positions, it was found that MaxVO2 levels of goalkeepers were lower than that of midfielders and forwards (P<0.05). In conclusion, it was found that the factors such as MaxVO2 level and reaction time which affect the performances of players nowadays and differ according to their playing positions. It is considered that these differences result from the different training programs according to the playing positions.

The research paper presents an analysis of the interrelation between the lateral organisation profiles' indicators and self-regulation features. The existence of significant distinctions in the processes of self-regulation among respondents with different variants of lateral profiles of the interhemispheric asymmetry is proved, as well as the common features of these processes that are peculiar to the individuals having identical options of the lateral profiles are specified too. The combination of general psychological and differential psychological approaches made it possible to establish multilevel connections between the functional asymmetry peculiarities and behavioural and personality self-regulation characteristics being put into practice within the action system aimed at arranging temporal and living space of a person. It is revealed that there is a logic connection between the characteristics of the self-regulation processes and the profiles of lateral organisation, conditioned by the interaction of the interhemispheric asymmetry's native traits within the motor activity organisation having the experience gained during a person's lifetime. The lateral organisation profiles with a more complex interrelation between sensory and motor systems are connected with the formation of personality and activity characteristics of voluntary activity's self-regulation, acquired within the processes of education, upbringing and other forms of socialization. The research results can be used in vocational guidance campaigns, and for academic activity optimization. They can also be applied while implementing principles of differential education, as well as at the classes of mastering the self-regulation system.belgorod

In this study, it's aimed to evaluate the relation between dominant and non-dominant hand perimeters and handgrip strength of basketball, volleyball, badminton and handball athletes. Totally 101 active athletes (49 females, 52 male), of the average age in female 20±1.42 years, in male 21±1.99 years, joined to this study. Height, body weight, BMI (Body Mass Index) and handgrip strength of all the athletes were measured according to international standards. Hand perimeters were measured at a certain standard with digital camera and was calculated with the software developed. The data was analyzed by SPSS 22 programme and Student t test, Pearson Correlation test and One Way Anova was applied. A significance level of p <0.05 was adopted in the analysis. Results of the analysis showed that dominant and non-dominant handgrips of athletes in all disciplines and gender are significantly different and hand and finger perimeters developing different depending on the way they use the ball or racket grip.

Prior behavioral experiments across a variety of tasks have typically shown that the go/no-go procedure produces not only shorter response times and/or fewer errors than the two-choice procedure, but also yields a higher sensitivity to experimental manipulations. To uncover the time course of information processing in the go/no-go versus the two-choice procedures during visual word recognition, we examined the impact of a lexical factor (word frequency) in a lexical-decision task by tracking event-related potential (ERP) waves. If the differences across response procedures influence relatively early lexical processing stages, we would expect word frequency to induce differences across tasks in the early epochs of the ERP. Alternatively, if the differences across response procedures only occur at a postaccess response selection stage, we would only expect differences across procedures in late time windows of the ERP. Results showed that the word-frequency effect occurred earlier (starting around 200 ms poststimuli) in the go/no-go than in the two-choice response procedure. These results support the view of a largely flexible cognitive network in which a subtle manipulation of the response procedure can affect early components of processing.

This study examined the changes in saccadic amplitude associated with learning a visual sequence. The oculomotor system gradually adjusts saccadic parameters when tracking a visual stimulus, which has a predictable trajectory. In these contexts, the change in saccadic amplitudes leads to predictive fixations. That is, fixations made to a position in the visual field, where a visual stimulus is anticipated to appear. This study tested whether learning a sequence of visual target movements on the serial reaction time (SRT) task would affect saccadic amplitudes and in turn lead to predictive fixations. Participants in this study were 40 healthy adults who completed the SRT task. Both manual reaction times (RTs) and eye movements were recorded. Analyses of manual RT data showed that at the group level, the sequence was learnt. Analyses of the oculomotor data revealed saccadic amplitudes decreased, following repeated exposures to the visual sequence. Also, increasingly more accurate predictive fixations were observed, following multiple exposures to the sequence. Additional analyses revealed sequence learning related changes in manual RTs, and saccadic amplitudes were not correlated. This study demonstrates the oculomotor system can acquire information about the sequence on the SRT task to update saccadic amplitudes. The nonsignificant correlation between manual RTs and saccadic amplitudes may be indicating sequences are represented differently by the manual and oculomotor systems.

Prior work has found links between consistency in toddler handedness for the fine motor skill role-differentiated bimanual manipulation (RDBM), and language development at 2 and 3 years of age. The current study investigated whether consistency in handedness from 18 to 24 months (N = 90) for RDBM predicts receptive and expressive language abilities assessed using the Preschool Language Scales 5th edition (PLS-5) at 5 years old. Latent class growth analyses identified 3 stable RDBM hand preference trajectories: a left hand preference with moderate right hand use (left-moderate right), a right hand preference with moderate left hand use (right-moderate left), and a right hand preference with only mild left hand use (right-mild left). At 5 years of age, children with a right-mild left handedness trajectory as toddlers scored significantly higher on receptive and expressive language abilities compared to children with a left-moderate right hand preference. Children with a right-mild left hand preference for RDBM also scored significantly higher on receptive language abilities compared to children with a right-moderate left RDBM hand preference. Children with left-moderate right and children with a right-moderate left hand preference for RDBM as toddlers did not differ in receptive or expressive language abilities at 5 years. Results indicate that individual differences in hand preference consistency for fine motor skill in toddlerhood have cascading effects on language outcomes into the preschool years.

Children with autism spectrum disorder (ASD) produce fewer deictic gestures, accompanied by delays/deviations in speech development, compared to typically-developing (TD) children. We ask whether children with ASD--like TD children--show right-hand preference in gesturing and whether right-handed gestures predict their vocabulary size in speech. Our analysis of handedness in gesturing in children with ASD (n = 23, M[subscript age] = 30-months) and with TD (n = 23, M[subscript age] = 18-months) during mother-child play showed a right-hand preference for TD children--"but not" for children with ASD. Nonetheless, right-handed deictic gestures predicted expressive vocabulary 1 year later in both children with ASD and with TD. Handedness for gesture, both hand preference and amount of right-handed pointing, may be an important indicator of language development in autism and typical development.

Background: Every language has certain specific idiosyncrasies in its writing system. Cross-linguistic analyses of alexias and agraphias are fundamental to understand commonalities and differences in the brain organization of written language. Few reports of alexias and agraphias in the Spanish language are currently available. Aims: To analyse the clinical manifestations of alexias and agraphias in Spanish, and the effect of demographic variables. Methods & Procedures: Spanish versions of the Western Aphasia Battery (WAB) and Boston Diagnostic Aphasia Examination (BDAE) were used for language assessment. Lesion localization was obtained by using computed axial tomography and magnetic resonance imaging. The final sample included 200 patients: 195 (97.5%) right-handed and five (2.5%) left-handed; 119 men and 81 women with a mean age of 57.37 years (SD = 15.56), education of 13.52 years (SD = 4.08), and mean time post-onset of 6.58 months (SD = 12.94). Using the WAB, four quotients were calculated: aphasia quotient (AQ), reading-writing quotient (RWQ), language quotient (LQ) and cortical quotient (CQ). Outcomes & Results: The types of aphasia were: global = 11 patients (5.5%), Broca = 31 (15.5%), Wernicke = 30 (15.0%), conduction = 22 (11.0%), transcortical sensory = 17 (8.5%), transcortical motor = 3 (1.5%), amnesic or anomic = 54 (27.0%) and mixed non-fluent = 32 (16.0%). The degree of oral and written language impairment differed across the various aphasia types. Most severe reading and writing difficulties were found in global, mixed non-fluent and transcortical motor aphasia; fewer difficulties were observed in amnesic, Broca and conduction aphasia. The severity of the written language impairments paralleled the severity of the oral language disturbances. Age negatively, while schooling positively, correlated with the scores in reading and writing tests. No effect of sex and time since onset was found. Conclusions & Implications: In Spanish-speaking aphasia patients, difficulties in reading and writing are similar to oral language difficulties. This similarity of performance is mostly based on severity rather than the participants' patterns of errors.