Search

This study examined the effects of working memory (WM), structure, and salience on the processing of English relative clauses (RCs) and participial reduced relative clauses (PRRCs) by L1 Thai learners. Salience in this research is the phonological alterations required for irregular verbs to inflect into the past participial form. The study included two types of irregulars with different salience levels. Seventy advanced L1 Thai learners took a reading span task and a self-paced reading task to assess their WM level and processing of past participial forms. The hypotheses proposed that WM, structure, and salience would influence online processing (reading times) and offline processing (comprehension accuracy). However, the findings showed differences between the higher and lower WM groups in only their online processing. The asymmetrical WM effects may be due to different levels of resource demands of the two processing tasks. Effects of structure and salience were observed on the learners' processing. The learners read the PRRCs faster than the RCs due to greater processing resources required for considering grammatical issues in the latter. Additionally, the participants processed the less salient irregulars faster because of greater phonological similarities between their past tense and past participial forms. Future research could explore either different classes of past participles in the salience hierarchy or how WM and salience affect the PRRC processing among learners with diverse L1 backgrounds.

This paper has been written to fall within the orbit of the moraic framework of the syllable, particularly the syllable weight, of Basrah Arabic. Universal as its nature is, mora, when studied and then applied, has, metaphorically speaking, the power of casting its phonological 'spell' over the problems of the morphophonology of Basrah tri-segmental verbs, adjectives, and nouns which have popped up in the context of investigating the behavior of Basrah syllabicity, and thus the mora 'spell' gets these problematic issues easily solvable and surmountable. The problems overcome by applying the moraic model are of two facets: some of them are phonologically-based problems and others are morphologically-based ones. Either case, mora is manipulated to throw its shadow on them equally and adequately. With this in mind, the application of moraic aspects to some Basrah verbs presupposes a drastic shift in segmental durations, namely, vowel ones when occurred word-medially. Among different results reached by this paper is that Basrah Arabic syllabic templates of certain verbs, adjectives, and nouns need to be pinpointed from the mora-tier angle other than from the CVtier and X-tier angles.

This paper examines possible psycholinguistic mechanisms governing stem vowel changes of irregular verbs in intermediate English learners of German as a foreign language (GFL). In Experiment 1, nonce-infinitives embedded in an authentic fictional text had to be inflected for German preterite, thus testing possible analogy-driven pattern associations. Experiment 2 explored the psycholinguistic reality of the so-called apophonic path by prompting two inflections for one given nonce-word. Data were analyzed using generalized mixed effects models accounting for within-subject as well as within-item variance. The results of Experiment 1 and 2 support the notion of a pattern associator and yield only scarce evidence for the psycholinguistic reality of a universal apophonic path. Therefore, the organization of irregular verb morphology in the mental lexicon of intermediate GFL learners might best be captured by the linguistic notion of structured lexical entries as well as the psycholinguistic mechanism of an analogy-based pattern associator.

Purpose: We investigated four theoretically based latent variable models of word learning in young school-age children. Method: One hundred sixty-seven English-speaking second graders with typical development from three U.S. states participated. They completed five different tasks designed to assess children's creation, storage, retrieval, and production of the phonological and semantic representations of novel words and their ability to link those representations. The tasks encompassed the triggering and configuration stages of word learning. Results: Results showed that a latent variable model with separate phonological and semantic factors and linking indicators constrained to load on the phonological factor best fit the data. Discussion: The structure of word learning during triggering and configuration reflects separate but related phonological and semantic factors. We did not find evidence for a unidimensional latent variable model of word learning or for separate receptive and expressive word learning factors. In future studies, it will be interesting to determine whether the structure of word learning differs during the engagement stage of word learning when phonological and semantic representations, as well as the links between them, are sufficiently strong to affect other words in the lexicon.

Children with hearing impairment (HI) are at an increased risk of developing speech and language problems similar to those of children with developmental language disorder (DLD), including difficulties with phonology and grammar. This study investigated similarities and differences in phonological and grammatical production between children with bilateral sensorineural HI (n = 14) and children with DLD (n = 30) between 4-6 years of age and age-matched controls with typical language development and normal hearing (TLD) (n = 29), all with Swedish as their first language. Production of consonants, vowels, stress patterns and tonal word accents was assessed in a picture naming task, and in a word and nonword repetition task. Grammatical production was assessed for verb and noun morphology, and syntax. While performance for both children with HI and DLD were generally significantly below that of the controls with TLD, production of accents and syntax emerged as relative strengths. There were few differences between the between the children with HI and DLD, but noun-adjective agreement in predicative was more challenging for the children with HI. The results have implications for language assessment and planning of intervention.

Purpose: The purpose of the current study was to determine the effect of neighborhood density and syntactic class on word recognition in children with specific language impairment (SLI) and typical development (TD). Method: Fifteen children with SLI ("M" age = 6;5 [years;months]) and 15 with TD ("M" age = 6;4) completed a forward gating task that presented consonant-vowel-consonant dense and sparse (neighborhood density) nouns and verbs (syntactic class). Results: On all dependent variables, the SLI group performed like the TD group. Recognition performance was highest for dense words and nouns. The majority of 1st nontarget responses shared the 1st phoneme with the target (i.e., was in the target's cohort). When considering the ranking of word types from easiest to most difficult, children showed equivalent recognition performance for dense verbs and sparse nouns, which were both easier to recognize than sparse verbs but more difficult than dense nouns. Conclusion: The current study yields new insight into how children access lexical-phonological information and syntactic class during the process of spoken word recognition. Given the identical pattern of results for the SLI and TD groups, we hypothesize that accessing lexical-phonological information may be a strength for children with SLI. We also discuss implications for using the forward gating paradigm as a measure of word recognition.

One strategy that children might use to sort words into grammatical categories such as noun and verb is distributional bootstrapping, in which local co-occurrence information is used to distinguish between categories. Words that can be used in more than one grammatical category could be problematic for this approach. Using naturalistic corpus data, this study asks whether noun and verb uses of ambiguous words might differ prosodically as a function of their grammatical category in child-directed speech. The results show that noun and verb uses of ambiguous words in sentence-medial positions do differ from one another in terms of duration, vowel duration, pitch change, and vowel quality measures. However, sentence-final tokens are not different as a function of the category in which they were used. The availability of prosodic cues to category in natural child-directed speech could allow learners using a distributional bootstrapping approach to avoid conflating grammatical categories.

The present study applies a multidimensional methodological approach to the study of the acquisition of morphosyntax. It focuses on evaluating the degree of productivity of an infrequent subject-verb agreement pattern in the early acquisition of French and considers the explanatory role played by factors such as input frequency, semantic transparency of the agreement markers, and perceptual factors in accounting for comprehension of agreement in number (singular vs. plural) in an experimental setting. Results on a pointing task involving pseudoverbs demonstrate significant comprehension of both singular and plural agreement in children aged 2;6. The experimental results are shown not to reflect input frequency, input marker reliability on its own, or lexically driven knowledge. We conclude that toddlers have knowledge of subject-verb agreement at age 2;6 which is abstract and productive despite its paucity in the input.

We investigated the spelling of derivational and inflectional suffixes by 10-13-year-old Greek children. Twenty children with dyslexia (DYS), 20 spelling-level-matched (SA) and 20 age-matched (CA) children spelled adjectives, nouns, and verbs in dictated word pairs and sentences. Children spelled nouns and verbs more accurately than adjectives and inflections more accurately than derivational suffixes. DYS children performed worse than CA in all cases and worse than SA in verb inflections, but similar to SA in all the remaining cases, consistent with a delayed rather than deviant performance pattern. Qualitative analysis showed that uncommon vowel graphemes were often replaced by more common patterns. Children with dyslexia may have weaknesses in grasping morphological information and/or in applying this knowledge to spell word suffixes.

The acquisition of German participle inflection was investigated using spontaneous speech samples from six children between 1 ; 4 and 3 ; 8 and ten children between 1 ; 4 and 2 ; 10 recorded longitudinally at regular intervals. Child-directed speech was also analyzed. In adult and child speech weak participles were significantly more frequent than strong participles. Children's errors involved all elements of participle marking. All error types, including over-regularization, occurred from the beginning alongside correct forms. Errors decreased significantly over age. Over-regularization in the sense of -"t" affixation on strong verbs was significantly more frequent than erroneous -"en" suffixation on weak verbs but not than prefix and suffix omission. On participles with stem vowel change erroneous stem vowel was significantly more frequent than correct stem vowel with suffix error alone. Error patterns are explained in terms of frequencies, and participle inflection being learned as part of general verb inflection.

In revisiting Bolozky's [Bolozky, Shmuel, 1979. "On the new imperative in colloquial Hebrew." "Hebrew Annual Review" 3, 17-24] and Bat-El's [Bat-El, Outi, 2002. "True truncation in colloquial Hebrew imperatives." "Language" 78(4), 651-683] analyses of colloquial Hebrew imperatives, the article argues for restricting Imperative Truncation to the morphologically-triggered process of #tV prefix elision (or even to just #t prefixes). Elision of "e" and "i" in imperatives is claimed to be effected by the general, phonetically-motivated elision of the same vowels in casual speech. The prominence and sonority of the vowel a protects it from elision in imperatives, and short forms like kum "get up!" are not derived from their takum counterparts, but rather borrowed from the normative register.

Previous functional magnetic resonance imaging (fMRI) studies investigating hemispheric dominance for language have shown that hemispheric specialization increases with age. We employed magnetoencephalography (MEG) to investigate these effects as a function of normal development. In sum, 22 healthy children aged 7-16 years were investigated using two language tasks: a "verb-generation" (VG) task and a "vowel-identification" (VI) task. Significant hemispheric differences were found for both tasks in cerebral language areas using oscillatory MEG spectral analyses, confirming the MEG's ability to detect hemispheric specialization for language in children. Additionally, a significant increase of this lateralization as a function of age was observed for both tasks. As performance in the VI task showed no correlation with age, this increase seems to be unrelated to performance. These results confirm an increase in hemispheric specialization as a function of normal brain maturation. (Contains 4 figures.)

Foreign accent syndrome (FAS) is a rare disorder characterized by the emergence of a perceived foreign accent following brain damage. The symptomotology, functional bases, and neural substrates of this disorder are still being elucidated. In this case study, acoustic analyses were performed on the speech of a 46-year old monolingual female who presented with FAS of unknown aetiology. The patient had a pseudo-accent frequently described as 'Swedish' or 'Eastern European'. Stop consonant VOT, consonant burst spectra and duration, vowel durations, formant frequencies, and trajectories were analysed, along with prosodic cues for lexical stress assignment and sentence-level intonation. Results indicated VOT values were generally preserved, while there was a strong tendency to realize the English alveolar flap as a full stop, and to produce flaps that had greater-than-normal closure durations. The spectral properties of the patient's vowels resembled those of normal talkers (with the possible exceptions of decreased F1 values for /i/ and slight differences in formant dynamics for /u/, /o/, /i/, and /e/). However, vowel durations were relatively long, contributing to exaggerated tense/lax contrasts. Token-to-token variability in vowel production was slightly higher than normal for duration, but not for formant frequency values. Lexical stress assignment was inaccurate and highly variable (with similar problems noted for non-speech materials), and sentence level intonation showed occasional deviations from typical American English patterns. For this patient, an underlying timing/rhythm difficulty appeared responsible for the range of segmental and suprasegmental changes leading to the impression of a foreign accent. Appended are: (1) Words used for the VOT and place of articulation analyses' (2) Sentences used in the noun/verb stress contrast analysis; and (3) Sentences used in the noun/verb stress contrast analysis. (Contains 4 tables, 9 figures and 4 notes.)

A key question in language processing concerns the rule-like nature of many aspects of grammar. Much research on this topic has focused on English past tense morphology, which comprises a regular, rule-like pattern (e.g., bake-baked) and a set of irregular forms that defy a rule-based description (e.g., take-took). Previous studies have used past tense priming to support the theory that the two forms are processed using different cognitive mechanisms. In the present study we investigated this distinction more closely, focusing specifically on whether the regular/irregular distinction is categorical or graded. Priming for regular and irregular forms was compared, as well as for forms that are irregular but display a partial regularity (suffixed irregular verbs, e.g., sleep-slept). Participants performed a lexical decision task with either a masked visual (Experiment 1) or an auditory prime (Experiment 2). We also manipulated prime-target ISI (0 vs. 500ms), given previous studies indicating this factor might also influence the magnitude and quality of effects. We observed priming effects for both regular and irregular verbs, however the degree of priming of both was influenced by prime modality and processing time. When the prime was masked and presented for 66ms regulars and suffixed irregulars patterned together, and were different from vowel change irregular forms. As the processing time increased (using longer ISI or cross-modal presentation), all morphologically related words showed facilitation. The results suggest that priming arises as a convergence of orthographic, phonological and semantic overlap that is especially strong for morphologically related words.

The development of the use of the third-person singular -s in open syllable verbs in children with specific language impairment (SLI) and their typically developing peers was examined. Verbs that included overt productions of the third-person singular -s morpheme (e.g. "Bobby plays ball everyday;" "Bear laughs when mommy buys popcorn") were contrasted with clearly bare stem contexts (e.g. "Mommy, buy popcorn;" "I saw Bobby play ball") on both global and local measures of acoustic duration. A durational signature for verbs inflected with -s was identified separately from factors related to sentence length. These duration measures were also used to identify acoustic changes related to the omission of the -s morpheme. The omitted productions from the children with SLI were significantly longer than their correct third-person singular and bare stem productions. This result was unexpected given that the omitted productions have fewer phonemes than correctly inflected productions. Typically developing children did not show the same pattern, instead producing omitted productions that patterned most closely with bare stem forms. These results are discussed in relation to current theoretical approaches to SLI, with an emphasis on performance and speech-motor accounts. (Contains 3 tables and 2 figures.)

Two experiments sought to extend the demonstration of English-learning infants' abilities to segment nouns from fluent speech to a new lexical class: verbs. Moreover, we explored whether two factors previously shown to influence noun segmentation, stress pattern (strong-weak or weak-strong) and type of initial phoneme (consonant or vowel), also influence verb segmentation. Our results establish the early emergence of verb segmentation in English: by 13.5 months for strong-weak consonant- or vowel-initial verbs and for weak-strong consonant-initial verbs; and by 16.5 months for weak-strong verbs beginning with a vowel. This generalizes previous reports of early segmentation to a new lexical class, thereby providing additional evidence that segmentation is likely to contribute to lexical acquisition. The effects of stress pattern and onset type found are similar to those previously obtained for nouns, in that verbs with a weak-strong stress pattern and verbs beginning with a vowel appear to be at a disadvantage in segmentation. Finally, we present prosodic analyses that suggest a possible effect of prosodic boundary and pitch accent distribution on segmentation. These prosodic differences potentially explain a developmental lag in verb segmentation observed in the present study compared to earlier findings for noun segmentation. (Contains 1 table, 2 figures and 5 footnotes.)

This paper reports on the grammatical and programmatical production aspects of the "Hebrewer," a cross-platform web-based reference work in the form of a Hebrew inflection generator. The Hebrewer, a Java applet/servlet combination, is currently capable of generating 2,500 nouns in full declension and 500 verbs in full conjugation, displaying the results in vocalized Hebrew and allowing users to print the inflection charts. (Contains 3 figures and 26 notes.)

It has been shown that the processing of irregular past-tense forms is affected by phonological factors that are inherent in the relationship of the past-tense forms to other words in the lexicon (rhyming families of irregulars) or to their base forms (vowel dominance effects). This paper addresses more ephemeral phonological effects. In a sentence-production task, the vowel of the base form or past-tense form of an irregular verb is primed by an identical vowel in the subject noun (e.g., base vowel "cream," past-tense vowel "chrome," unrelated vowel slot). For verbs with different vowels in the base form and past-tense form, phonological priming of the base vowel or of the past-tense vowel increases the rate of overregularization errors such as "*freezed" as compared to an unrelated vowel prime. For verbs with the same vowel in the base and past-tense forms (e.g., "hit/hit"), phonological priming has no effect on the rate of overregularization errors. It is argued that irregular forms are not produced in a specialized subnetwork for (irregular) past-tense forms, but are produced in the general lexical system simultaneous with general phonological processing. Implications for theories of inflectional morphology are discussed.

This paper attempts to show that Zwicky's rule of Auxiliary Reduction is an incorrect analysis of the contraction of auxiliaries in English; and that the phonological processes involved are not as complicated as Zwicky makes them out to be. A simpler explanation is offered through analyzing auxiliary reduction as a three-step process. The three steps are: (1) unstressed auxiliaries containing lax vowel must undergo the Auxiliary Vowel Reduction (AVR) which changes the vowel to a schwa; (2) the Auxiliary Glide Deletion Rule (AGD) will do away with initial [h] and some instances of initial [w]; and (3) by the rule of Auxiliary Schwa Deletion (ASD), and initial schwa obtained as a result of AVR or AGD can be deleted provided it is preceded by a [-consonantal] segment. (Author/AM)