Search

We investigated prediction skills of adult heritage speakers and the role of written and spoken language experience on predictive processing. Using visual world eye-tracking, we focused on predictive use of case-marking cues in verb-medial and verb-final sentences in Turkish with adult Turkish heritage speakers (N = 25) and Turkish monolingual speakers (N = 24). Heritage speakers predicted in verb-medial sentences (when verb-semantic and case-marking cues were available), but not in verb-final sentences (when only case-marking cues were available) while monolinguals predicted in both. Prediction skills of heritage speakers were modulated by their spoken language experience in Turkish and written language experience in both languages. Overall, these results strongly suggest that verb-semantic information is needed to scaffold the use of morphosyntactic cues for prediction in heritage speakers. The findings also support the notion that both spoken and written language experience play an important role in predictive spoken language processing. [ABSTRACT FROM AUTHOR]

Prediction facilitates word processing in the moment, but the longer-term consequences of prediction remain unclear. We investigated whether prediction error during language encoding enhances memory for words later on. German-speaking participants read sentences in which the gender marking of the pre-nominal article was consistent or inconsistent with the predictable noun. During subsequent word recognition, we probed participants' recognition memory for predictable and unpredictable nouns. Our results indicate that individuals who demonstrated early prediction error during sentence reading, showed enhanced recognition memory for nouns overall. Results from an exploratory step-wise regression showed that prenominal prediction error and general reading speed were the best proxies for recognition memory. Hence, prediction error may facilitate recognition by furnishing memory traces built during initial reading of the sentences. Results are discussed in the light of hypotheses positing that predictable words show a memory disadvantage because they are processed less thoroughly. [ABSTRACT FROM AUTHOR]

Theories about word production differ in whether they assume that lexical selection involves modality-specific representations or modality-neutral ones, called lemmas. The observation that semantic errors in aphasia may be restricted to either speaking or writing has long been taken to challenge lemma models (Hillis et al., 1999; Kemmerer, 2015, 2019). Whereas patients RGB, HW, and RR make semantic errors in speaking but not in writing, patient RCM exhibits the opposite dissociation. Here, using WEAVER++ simulations and a simple mathematical analysis, a model with lemmas is shown to account for the double dissociation observed in patients. In particular, the model captures the patterns of performance of the patients on vocal picture naming, written picture naming, auditory word comprehension, and writing to dictation, explaining 98% of the variance. The challenge is now for modality-specific models to account for the findings that the lemma model was designed to explain in the first place. [ABSTRACT FROM AUTHOR]

We examined how readers process content and function words in sentence comprehension with ERPs. Participants read simple declarative sentences using a rapid serial visual presentation (RSVP) with flankers paradigm. Sentences contained either an unexpected semantically anomalous content word, an unexpected syntactically anomalous function word or were well-formed with no anomalies. ERPs were examined when target words were in the parafoveal or foveal vision. Unexpected content words elicited a typically distributed N400 when displayed in the parafovea, followed by a longer-lasting, widely distributed positivity starting around 300 ms once foveated. Unexpected function words elicited a left lateralised LAN-like component when presented in the parafovea, followed by a left lateralised, posteriorly distributed P600 when foveated. These results suggested that both semantic and syntactic processing involve two stages – the initial, fast process that can be completed in parafovea, followed by a more in depth attentionally mediated assessment that occurs with direct attention. [ABSTRACT FROM AUTHOR]

In an eye-tracking-while-reading study, we investigated adult monolinguals' (N = 80) processing of two-clause sentences embedded in short narratives. Three principles theorised to guide comprehension of complex sentences were contrasted: one operating at the clause level, namely clause structure (main clause – subordinate clause or vice versa), and two operating at the discourse-level, namely givenness (given-new vs. new-given) and event order (chronological vs. reverse order). The results indicate that clause structure mainly affects early stages of processing, whereas the two principles operating at the discourse level are more important during later stages and for reading times of the entire sentence. Event order was found to operate relatively independently of the other principles. Givenness was found to overrule clause structure, a phenomenon that can be related to the grounding function of preposed subordinate clauses. We propose a new principle to reflect this interaction effect: the grounding principle. [ABSTRACT FROM AUTHOR]

Normal aging has variable effects on language comprehension, perhaps because comprehension mechanisms vary in their dependence on network structure versus network dynamics. To test claims that processing dynamics are more affected by age than structure, we used EEG to measure and compare the impact of neighborhood size, a core measure of the structure of the lexico-semantic network, and repetition, a simple measure of processing dynamics, on single word processing. Older adults showed robust effects of neighborhood size on the N400, comparable to those elicited by young adults, but reduced effects of repetition. Furthermore, older adults with greater verbal fluency, print exposure, and reading comprehension showed greater repetition effects, suggesting some older adults can maintain processing dynamics that are similar to those of young adults. Thus, the organizational structure of the semantic network seems stable across normal aging, but (some) older adults may struggle to adjust activation states within that network. [ABSTRACT FROM AUTHOR]

Electrophysiological studies suggest that situational event knowledge plays an important role in language processing, but often fail to distinguish whether observed effects are driven by combinatorial expectations, or simple association with the context. In two ERP experiments, participants read short discourses describing ongoing events. We manipulated the situational expectancy of the target word continuing the event as well as the presence of an associated, but inactive event in the context. In both experiments we find an N400 effect for unexpected compared to expected target words, but this effect is significantly attenuated when the unexpected target is nonetheless associated with non-occurring context events. Our findings demonstrate that the N400 is simultaneously influenced by both simple association with – and combinatorial expectations derived from – situational event knowledge. Thus, experimental investigations and comprehension models of the use of event knowledge must accommodate the role of both expectancy and association in electrophysiological measures. [ABSTRACT FROM AUTHOR]

We examined the time-course of lexical activation, deactivation, and the syntactic operation of dependency linking during the online processing of object-relative sentence constructions using eye-tracking-while-listening. We explored how manipulating temporal aspects of the language input affects the tight lexical and syntactic temporal constraints found in sentence processing. The three temporal manipulations were (1) increasing the duration of the direct object noun, (2) adding the disfluency uh after the noun, and (3) replacing the disfluency with a silent pause. The findings from this experiment revealed that the disfluent and silence temporal manipulations enhanced the processing of subject and object noun phrases by modulating activation and deactivation. The manipulations also changed the time-course of dependency linking (increased reactivation of the direct object). The modulated activation dynamics of these lexical items are thought to play a role in mitigating interference and suggest that deactivation plays a beneficial role in complex sentence processing. [ABSTRACT FROM AUTHOR]

Incremental language processing means that listeners confront temporary ambiguity about how to structure the input, which can generate misinterpretations. In four "visual-world" experiments, we tested whether engaging cognitive control – which detects and resolves conflict – assists revision during comprehension. We recorded listeners' eye-movements and actions while following instructions that were ripe for misanalysis. In Experiments 1 and 3, sentences followed trials from a nonverbal conflict task that manipulated cognitive-control engagement, to test its impact on the ability to revise. To isolate conflict-driven effects of cognitive-control on comprehension, we manipulated attention in a non-conflict task in Experiments 2 and 4. We observed fewer comprehension errors, and earlier revision, when cognitive control (more than attention) was elicited on an immediately preceding trial. These results extend previous correlations between cognitive control and language processing by revealing the influence of domain-general cognitive-control engagement on the temporal unfolding of error-revision processes during language comprehension. [ABSTRACT FROM AUTHOR]

Any proposal for predictive language comprehension must address receipt of less expected information. While a relationship between the N400 and sentence predictability is well established, a clear picture is still emerging of the link between post-N400 positivities (PNPs) and processing of semantically unexpected words, as well as any relation to other not-specifically-linguistic and/or syntactic late positivities. The current study employs event-related brain potentials (ERPs) to congruent and anomalous words to assess the impacts of semantic relatedness and contextual plausibility on processing unpredictable sentences. We observe PNPs with different scalp topographies to plausible unexpected words unrelated to predictable continuations (anterior PNP) and to anomalous words, regardless of, but delayed by, relatedness (posterior PNP). We offer functional explanations that reconcile inconsistencies with reported PNP findings and place added constraints on the anterior PNP's proposed link to inhibitory processing. We also suggest a testable general cognitive account for the posterior PNP. [ABSTRACT FROM AUTHOR]

The recently proposed Reusing Inhibition for Negation (RIN) hypothesis posits that the inhibitory control mechanism is reused to understand sentential negation. The RIN hypothesis has only been tested in alphabetic languages, and its novelty requires additional support from non-alphabetic languages, like logographic non-Indo-European languages. This study examined the RIN hypothesis in the context of Mandarin, which has unique linguistic features and neural underpinnings. Participants read either affirmative or negative action-related sentences while performing an embedded Go/NoGo task. Reduced inhibition-related N2 was detected in NoGo-negative compared to NoGo-affirmative condition. Brain source estimation of the N2 interaction effect revealed strongest activation in the right inferior parietal lobule, a typical inhibition-related brain region. These results confirm the generalizability of the RIN hypothesis, suggesting that comprehension of negation in logographic Mandarin also recruits the inhibitory control mechanism. [ABSTRACT FROM AUTHOR]

Focus is the most emphasised constituent of a sentence and either marks information that is newly asserted or indicates a contrast between current information and its alternatives. To investigate how readers process information focus (IF) and corrective focus (CF) at different positions in sentences, participants were visually presented with dialogues through a sentence comprehension task. The results showed that focus elicited a larger P2 and late positive component (LPC) than background, possibly reflecting a process of attention allocation and immediate discourse updating. Additionally, IF elicited a larger P2 than CF at the clause-medial position, while CF elicited a larger LPC than IF at the clause-final position, indicating that readers use various strategies to process the two kinds of focus at the different positions. The present study suggests that focus processing is influenced by both context and focus position. [ABSTRACT FROM AUTHOR]

Traditionally, language processing has been studied in tightly controlled experimental designs. However, in addition to raising questions about the generalisability of results to natural language use, these designs impose limitations on the types of research questions that can be examined. Accordingly, an increasing number of groups are now exploring new methodological approaches for studying language in rich contextual settings. This special issue aims to deliver an overview of the possibilities that are opened up by the use of context and naturalistic experimental designs. These include the ability to examine various - and hitherto understudied - populations, or linguistic phenomena on different levels (e.g. word, sentence, discourse) in the same naturalistic stimulus such as a story. Other special issue contributions focus on addressing the methodological challenges inherent to naturalistic experiments. Additionally, we stress the importance of interdisciplinary work and open sharing of data from naturalistic experiments in the neurobiology of language. [ABSTRACT FROM AUTHOR]

German particle verbs consist of a base and a particle, two constituents which occupy separate positions in main clauses, but share one lexical entry. It is still unclear if the combination of particles and bases during sentence comprehension is lexical, syntactic or dual in nature. Using behavioural and ERP measurements, we investigated lexical access and sentence integration of split particle verbs in German two-argument sentences. Our results show that the integration of split particle verbs violating sentence structure or lexical constraints leads to both lexical and syntactic processing difficulty. This extends earlier comparable findings reporting only lexical access difficulties, and suggests that the parse is not immediately abandoned upon encountering a nonexistent particle verb. The integration of grammatical particle verbs assigning lexical case did not lead to measurable processing difficulties. We discuss the impact of this finding for current accounts of the role of lexical case marking in sentence comprehension. [ABSTRACT FROM AUTHOR]

Two experiments were conducted to explore whether perspective influences the way readers engage with and process emotional information while reading. Texts presenting characters in an emotional situation from either a personal or an onlooker perspective were presented and reading times were measured for each sentence. Participants also provided emotional self-ratings after reading. In the first experiment, positive texts were processed with greater ease, especially when readers experienced the texts from a personal perspective. In Experiment 2, an emotional match/mismatch was inserted so that a final explicit emotion word either matched or mismatched the emotional valence of the text. Mismatch effects were stronger and more consistent for the personal perspective. The two experiments provide evidence that the perspective of the reader can influence emotion processing. Processing of emotional information was easier for the personal perspective, and readers were more sensitive to inconsistent emotional information from that perspective. [ABSTRACT FROM AUTHOR]

Sentence comprehension is optimised by indicating entities as salient through linguistic (i.e., information-structural) or visual means. We compare how salience of a depicted referent due to a linguistic (i.e., topic status) or visual cue (i.e., a virtual person's gaze shift) modulates sentence comprehension in German. We investigated processing of sentences with varying word order and pronoun resolution by means of self-paced reading and an antecedent choice task, respectively. Our results show that linguistic as well as visual salience cues immediately speeded up reading times of sentences mentioning the salient referent first. In contrast, for pronoun resolution, linguistic and visual cues modulated antecedent choice preferences less congruently. In sum, our findings speak in favour of a significant impact of linguistic and visual salience cues on sentence comprehension, substantiating that salient information delivered via language as well as the visual environment is integrated in the current mental representation of the discourse. [ABSTRACT FROM AUTHOR]

Language comprehension involves coping with ambiguity and recovering from misanalysis. Syntactic ambiguity resolution is associated with increased reading times, a classic finding that has shaped theories of sentence processing. However, reaction times conflate the time it takes a process to complete with the quality of the behavior-related information available to the system. We therefore used the speed-accuracy tradeoff procedure (SAT) to derive orthogonal estimates of processing time and interpretation accuracy, and tested whether stronger retrieval cues (via semantic relatedness: neighed->horse vs. fell->horse) aid interpretation during recovery. On average, ambiguous sentences took 250ms longer (SAT rate) to interpret than unambiguous controls, demonstrating veridical differences in processing time. Retrieval cues more strongly related to the true subject always increased accuracy, regardless of ambiguity. These findings are consistent with a language processing architecture where cue-driven operations give rise to interpretation, and wherein diagnostic cues aid retrieval, regardless of parsing difficulty or structural uncertainty. [ABSTRACT FROM AUTHOR]

Many models assume that inhibition plays an integral role during bilingual language control, a process that restricts bilingual language processing to the target language. However, there is limited evidence for such a claim. In the current study, we set out to investigate one known marker of bilingual inhibition (n-2 language repetition costs) that has, so far, mainly been investigated with digits in a production task. Hence, we ran a n-2 language repetition study with other types of stimuli (i.e. pictures and written words) in a production and a comprehension task. The results showed that n-2 language repetition costs were found with both stimulus types in a production task. In the comprehension tasks, n-2 language repetition costs were only observed with one of the two stimulus types and in only one language. These results indicate that inhibition is implemented during bilingual production, and is possible, but not necessary, during bilingual comprehension. [ABSTRACT FROM AUTHOR]

We report an eye-tracking experiment that examined argument linking and the role of prominence in Spanish sentence comprehension by testing the interplay between word order and verb type. Previous evidence from a self-paced reading study (Gattei, Dickey, Wainselboim, & París, 2015). showed that comprehenders use morphosyntactic information to form predictions about the thematic structure of the upcoming verb. In this study we focussed on the time course of this process. Results showed an interaction between verb type and word order for late eye movement measures but not for early eye movement measures. Participants regressed more and for longer time when word order did not match the canonical order for each verb class. This interaction is observed from the verb region onwards, independently of word order. We interpret that these effects take place due to the misinterpretation of the prominence status of the preverbal argument, leading to differential reading strategies. [ABSTRACT FROM AUTHOR]

This study investigated the interaction of prosody and thematic fit/plausibility information during the processing of sentences containing temporary early closure (correct) or late closure (incorrect) syntactic ambiguities using event-related potentials (ERPs). Early closure sentences with congruent and incongruent prosody were presented where the temporarily ambiguous NP was either a plausible or an implausible continuation for the subordinate verb (e.g. “While the band played the song/beer pleased all the customers.”). N400 and P600 components were examined at critical points in each condition. The CPS was examined in sentences with congruent prosody. Prosodic and thematic fit cues interacted immediately (N400-P600) at the implausible NP (beer), when it was paired with incongruent prosody. Incongruent prosody paired with a plausible NP (song) resulted in garden-path effects (N400-P600) at the critical verb (pleased). These findings provide strong evidence that prosodic and thematic fit/plausibility cues interact to aid the parser in syntactic structure building. [ABSTRACT FROM AUTHOR]

We frequently experience and successfully process anomalous utterances. Here we examine whether people do this by “correcting” syntactic anomalies to yield well-formed representations. In two structural priming experiments, participants’ syntactic choices in picture description were influenced as strongly by previously comprehended anomalous (missing-verb) prime sentences as by well-formed prime sentences. Our results suggest that comprehenders can reconstruct the constituent structure of anomalous utterances – even when such utterances lack a major structural component such as the verb. These results also imply that structural alignment in dialogue is unaffected if one interlocutor produces anomalous utterances. [ABSTRACT FROM PUBLISHER]