Sentence Comprehension Task Research Articles

Working memory asymmetrically modulates auditory and linguistic processing of speech

Working memory load can modulate speech perception. However, since speech perception and working memory are both complex functions, it remains elusive how each component of the working memory system interacts with each speech processing stage. To investigate this issue, we concurrently measure how the working memory load modulates neural activity tracking three levels of linguistic units, i.e., syllables, phrases, and sentences, using a multiscale frequency-tagging approach. Participants engage in a sentence comprehension task and the working memory load is manipulated by asking them to memorize either auditory verbal sequences or visual patterns. It is found that verbal and visual working memory load modulate speech processing in similar manners: Higher working memory load attenuates neural activity tracking of phrases and sentences but enhances neural activity tracking of syllables. Since verbal and visual WM load similarly influence the neural responses to speech, such influences may derive from the domain-general component of WM system. More importantly, working memory load asymmetrically modulates lower-level auditory encoding and higher-level linguistic processing of speech, possibly reflecting reallocation of attention induced by mnemonic load.

Oral Language Abilities in Children with Dyslexia and Poor Comprehension in Grades 3–6

Objectives: This study investigated receptive vocabulary and morphosyntactic skills of children with dyslexia, poor comprehension, and typically developing children in grade 3 to 6. Methods: A total of 45 children with dyslexia, poor comprehension, and typically developing children participated. In order to qualify for each group, children with dyslexia scored below 85 on the word decoding test, and poor comprehenders scored below 85 on the reading comprehension, but scored above 90 on decoding test. Typically developing children scored a standard score of 90 on both decoding and reading comprehension. All children were administered a receptive vocabulary, sentence comprehension, sentence repetition, morphological awareness, and syntactic awareness tasks. Results: The results showed that there were significant differences in all language tasks. Poor comprehenders scored the lowest on all tasks, followed by children with dyslexia. In the results receptive vocabulary task, there were differences between all three groups; and poor comprehenders performed lower than children with dyslexia and typically developing children on sentence comprehension. In the sentence repetition task, children with poor reading comprehension and dyslexia showed lower performance than typically developing children. Additionally, there were only differences between poor comprehenders and typically developing children in the morphological and syntactic awareness tasks. Conclusion: Poor comprehenders showed difficulties in vocabulary and morphosyntax, and children with dyslexia exhibited weakness of vocabulary and sentence repetitions that require linguistic knowledge and phonological memory. Their weakness of oral language may negatively influence reading development.

Changing pronoun interpretations across-languages: discourse priming in Spanish–English bilingual speakers

AbstractAre bilingual speakers’ representations of pronominal expressions completely independent in the two languages, or is there sharing of discourse-level representations cross-linguistically? In the present study, we address this question by using a sentence comprehension task that implements the cross-linguistic priming technique at the discourse-level.In two experiments conducted with Spanish–English bilinguals, we prime dis-preferred interpretations for ambiguous pronouns in the second language (English) by using first language (Spanish) pronoun interpretation primes. In experiment 1, Spanish null pronouns prime second-mentioned/object interpretations in English, showing an effect of priming. In experiment 2, Spanish explicit pronouns prime second-mentioned/object interpretations in English, indicating that an effect of priming approaches significance.The results demonstrate that bilinguals’ inferences about probability distributions and coherence relations are susceptible to cross-linguistic influence. The strength of the priming effect is discussed within models of cross-language abstract representations.

Non-binary language in Spanish? Comprehension of non-binary morphological forms: a psycholinguistic study

There is empirical evidence in different languages on how the computation of gender morphology during psycholinguistic processing affects the construction of sex-generic representations. However, there are few experimental studies in Spanish and there is no empirical evidence about the psycholinguistic processing of morphological innovations used as non-binary forms (-x; -e) in contrast to the generic masculine variant (-o). To analyze this phenomenon, we designed a sentence comprehension task. We registered reading times, precision and response times. The results show the specialization of non-binary forms as generic morphological variants, as opposed to the generic masculine. The non-binary forms consistently elicited a reference to mixed groups of people and the response times indicated that these morphological variants do not carry a higher processing cost than the generic masculine. Contrary to what classical grammatical approaches propose, the generic masculine does not function in all cases as generic and its ability to refer to groups of people without uniform gender seems to be modulated by the stereotypicality of the role names.

Cerebellar tDCS does not modulate language processing performance in healthy individuals

Clinical and neuroscientific studies have established that the cerebellum contributes to language processing. Yet most evidence is correlational and the exact role of the cerebellum remains unclear. The aim of this study was to investigate the role of the right cerebellum in language comprehension and production using non-invasive brain stimulation. In this double-blind, sham-controlled experiment, thirty-six healthy participants received anodal or sham transcranial direct current (tDCS) stimulation to the right cerebellum while performing a lexical decision, sentence comprehension, verbal fluency and a non-language control task. Active tDCS did not modulate performance in any of the tasks. Additional exploratory analyses suggest difficulty-specific performance modulation in the sentence comprehension and lexical decision task, with tDCS improving performance in easy trials of the sentence comprehension task and difficult trials in the lexical decision task. Overall, our findings provide no evidence for the involvement of the right posterior cerebellum in language processing. Further research is needed to dissociate the influence of task difficulty of the underlying cognitive processes.

Effects of computer-based therapy versus therapist-mediated therapy in stroke-related aphasia: Pilot non-inferiority study

PurposeThe burgeoning growth of computer-based rehabilitation technologies has led to a paradigm shift in the delivery of aphasia intervention. The aim of this study was to conduct a pilot non-inferiority study comparing computer-based training for people with aphasia versus traditional therapist-mediated training on language skills, functional communication and quality of life outcomes in the hospital setting. MethodsTwenty-two fluent, monolingual Italian speakers with stroke-related aphasia in the acute phase of recovery were enrolled in the study. Participants were assigned randomly to computer-based or therapist-mediated aphasia treatment. Both groups received one, 50-minute session for 5 days per week over a period of 8 weeks. During the training, they were administered words and sentence comprehension, written naming, word completion, fluency, word and sentence reorganization tasks. The complexity of each task was increased progressively based on the severity of each person's language deficits. ResultsParticipants in both computer-based and traditional therapist-mediated aphasia intervention showed significant gains in language skills, functional communication and quality of life from pre- to post-treatment. Statistically significant within-group differences were found across all outcome measures. In contrast, no significant between-group and group x time interaction effects were found across language skills, functional communication and quality-of-life measures. ConclusionsThe overall pattern of findings suggested computer-based intervention was not inferior to traditional therapist-based intervention for enhancing functional communication deficits in stroke-related aphasia during the acute phase of recovery. A follow-up, fully-powered clinical trial is needed to confirm the reliability of these results.

Right‐hemispheric language reorganization in patients with brain arteriovenous malformations: A functional magnetic resonance imaging study

Brain arteriovenous malformation (AVM), a presumed congenital lesion, may involve traditional language areas but usually does not lead to language dysfunction unless it ruptures. The objective of this research was to study right‐hemispheric language reorganization patterns in patients with brain AVMs using functional magnetic resonance imaging (fMRI). We prospectively enrolled 30 AVM patients with lesions involving language areas and 32 age‐ and sex‐matched healthy controls. Each subject underwent fMRI during three language tasks: visual synonym judgment, oral word reading, and auditory sentence comprehension. The activation differences between the AVM and control groups were investigated by voxelwise analysis. Lateralization indices (LIs) for the frontal lobe, temporal lobe, and cerebellum were compared between the two groups, respectively. Results suggested that the language functions of AVM patients and controls were all normal. Voxelwise analysis showed no significantly different activations between the two groups in visual synonym judgment and oral word reading tasks. In auditory sentence comprehension task, AVM patients had significantly more activations in the right precentral gyrus (BA 6) and right cerebellar lobule VI (AAL 9042). According to the LI results, the frontal lobe in oral word reading task and the temporal lobe in auditory sentence comprehension task were significantly more right‐lateralized in the AVM group. These findings suggest that for patients with AVMs involving language cortex, different language reorganization patterns may develop for different language functions. The recruitment of brain areas in the right cerebral and cerebellar hemispheres may play a compensatory role in the reorganized language network of AVM patients.

A Slight Increase in Reverberation Time in the Classroom Affects Performance and Behavioral Listening Effort.

The purpose of this study was to investigate the effect of a small change in reverberation time (from 0.57 to 0.69 s) in a classroom on children's performance and listening effort. Aiming for ecological listening conditions, the change in reverberation time was combined with the presence or absence of classroom noise. In three academic tasks, the study examined whether the effect of reverberation was modulated by the presence of noise and depended on the children's age. A total of 302 children (aged 11-13 years, grades 6-8) with normal hearing participated in the study. Three typical tasks of daily classroom activities (speech perception, sentence comprehension, and mental calculation) were administered to groups of children in two listening conditions (quiet and classroom noise). The experiment was conducted inside real classrooms, where reverberation time was controlled. The outcomes considered were task accuracy and response times (RTs), the latter taken as a behavioral proxy for listening effort. Participants were also assessed on reading comprehension and math fluency. To investigate the impact of noise and/or reverberation, these two scores were entered in the statistical model to control for individual child's general academic abilities. While the longer reverberation time did not significantly affect accuracy or RTs under the quiet condition, it had several effects when in combination with classroom noise, depending on the task measured. A significant drop in accuracy with a longer reverberation time emerged for the speech perception task, but only for the grade 6 children. The effect on accuracy of a longer reverberation time was nonsignificant for sentence comprehension (always at ceiling), and depended on the children's age in the mental calculation task. RTs were longer for moderate than for short reverberation times in the speech perception and sentence comprehension tasks, while there was no significant effect of the different reverberation times on RTs in the mental calculation task. The results indicate small, but statistically significant, effects of a small change in reverberation time on listening effort as well as accuracy for children aged 11 to 13 performing typical tasks of daily classroom activities. Thus, the results extend previous findings in adults to children as well. The findings also contribute to a better understanding of the practical implications and importance of optimal ranges of reverberation time in classrooms. A comparison with previous studies underscored the importance of early reflections as well as reverberation times in classrooms.

Best ear hearing level, time factors and language outcome in Swedish children with mild and moderate hearing loss with hearing aids

Aim The risk for language disorder is high in children with all levels of hearing loss (HL). Early identification and intervention should be as important for children with mild HL as for those with more severe HL. Despite new-born hearing screening, a recent survey of speech language therapist services in southern Sweden indicates that children with mild and moderate HL are severely neglected when it comes to language assessment and language intervention. In this study we explore associations between Best Ear Hearing Level (BEHL), time factors and language skills in Swedish children with HL with hearing aids (HA). Method Participants were 19 children with mild HL (BEHL 23–39) and 22 children with moderate HL (BEHL 40–70) aged 5–15 years. Information on age at diagnosis and at HA fitting were collected. The children performed a nonword repetition and a sentence comprehension task. Results The time elapsed between diagnosis and fitting with HA was longer for the children with mild HL.Participants with mild HL received their HA significantly later than children with moderate HL. No association between BEHL and the two language measures was found, and language skills were not better in children with mild than moderate HL. 17% of participants performed below cut-off for language disorder on both language measures. Conclusion Given the risk for long-term academic and social consequences of even mild HL delayed HA intervention for children with HLleads to serious concerns by families, clinicians, and pedagogues.

The Bilingual Home Language Boost Through the Lens of the COVID-19 Pandemic.

Usage-based accounts of language acquisition suggest that bilingual language proficiency is dynamic and susceptible to changes in language use. The COVID-19 pandemic led to unprecedented modifications in the language learning environment of developing bilinguals. Drawing on this unique opportunity, we analyzed existing data of two matched groups of Mandarin-English bilingual children (ages 4 to 8 years, n = 38), one tested before (pre-COVID group) and the other during (COVID group) the pandemic. The dataset comprises responses to a language environment questionnaire, and scores on a sentence comprehension task and a sentence recall task in the bilinguals’ two languages. Questionnaire data revealed a richer Mandarin language environment for children in the COVID group compared to peers in the pre-COVID group. On both comprehension and production tasks, the two groups performed comparably in English but the COVID group showed better performance in Mandarin than the pre-COVID group. Within the pre-COVID group, English was stronger than Mandarin in both comprehension and production. Within the COVID group, the two languages were balanced in comprehension and Mandarin was stronger than English in production. Moreover, language use variables were correlated with production performance in both languages. These patterns illustrate the intimate relationships between language use and bilingual language proficiency through the lens of COVID-19 induced language environment modification.

ACQUIRING L2 PRONOUN INTERPRETATION BIASES

AbstractLearners of a nonnull subject language (e.g., English) whose first language (L1) is a null subject language (e.g., Spanish) can show some optionality in the interpretation of overt subject pronouns in the second language (L2). By exposing L2 learners to nativelike interpretations of pronouns in discourse, we aim at understanding how exposure can promote implicit learning of pronoun comprehension biases in a L2. A sentence comprehension task was used with intermediate-proficiency English L2 speakers (L1 Spanish) that included a pretest, an exposure phase using the priming technique, an immediate posttest, and a delayed posttest administered 6–10 days later. English learners showed a significant increase in nativelike pronoun interpretations both in the immediate posttest and in the delayed posttest, in comparison to the pretest. The results show that exposure through priming can be effective in changing L2 participants’ interpretations and that effects of exposure are persistent and may aid in the successful acquisition of pronoun resolution biases.

Positive Effects of Passive Voice Exposure on Children’s Passive Production During a Classroom Story-telling Training

ABSTRACT The present study investigated the effect of classroom-based syntactic training on children’s abilities to produce passive sentences. Thirty-three monolingual English children (mean age 5;2), were involved in passive-voice training based on storytelling sessions within a priming design. The training was delivered in a classroom setting, with two classes randomly allocated to either an active sentence or a passive sentence training structure. All children were individually tested at post-training. Children in the passive condition generated 3.6 more passives than the children in the active voice condition. Pre-training language and memory abilities, as measured by both grammatical level with a standardized sentence comprehension task (TROG-2) and a verbal working memory task (Digit Span), were unrelated to number of passives produced at post training. The study supports and expands recent evidence on the benefit of rich language exposure in the classroom context and on the quick dynamic adaptation of the implicit learning mechanisms to language exposure activities.

When Hearing Does Not Mean Understanding: On the Neural Processing of Syntactically Complex Sentences by Listeners With Hearing Loss.

Purpose Adults with mild-to-moderate age-related hearing loss typically exhibit issues with speech understanding, but their processing of syntactically complex sentences is not well understood. We test the hypothesis that listeners with hearing loss' difficulties with comprehension and processing of syntactically complex sentences are due to the processing of degraded input interfering with the successful processing of complex sentences. Method We performed a neuroimaging study with a sentence comprehension task, varying sentence complexity (through subject-object order and verb-arguments order) and cognitive demands (presence or absence of a secondary task) within subjects. Groups of older subjects with hearing loss (n = 20) and age-matched normal-hearing controls (n = 20) were tested. Results The comprehension data show effects of syntactic complexity and hearing ability, with normal-hearing controls outperforming listeners with hearing loss, seemingly more so on syntactically complex sentences. The secondary task did not influence off-line comprehension. The imaging data show effects of group, sentence complexity, and task, with listeners with hearing loss showing decreased activation in typical speech processing areas, such as the inferior frontal gyrus and superior temporal gyrus. No interactions between group, sentence complexity, and task were found in the neuroimaging data. Conclusions The results suggest that listeners with hearing loss process speech differently from their normal-hearing peers, possibly due to the increased demands of processing degraded auditory input. Increased cognitive demands by means of a secondary visual shape processing task influence neural sentence processing, but no evidence was found that it does so in a different way for listeners with hearing loss and normal-hearing listeners.

Directional prepositions and event endpoint conceptualization: a study ofnaarandrichtingin Dutch

abstractTwo Dutch directional prepositions (i.e.,naarandrichting) provide a useful paradigm to study endpoint conceptualization. Experiment 1 adopted a sentence comprehension task and confirmed the linguistic proposal that, whennaarwas used in motion event descriptions, participants were more certain that the reference object was the goal of the agent than whenrichtingwas used. Experiment 2 and Experiment 3 used this linguistic pair to test the effect of two factors (i.e., the actor’s goal and the interlocutor’s status) on endpoint conceptualization via language production tasks. We found significant effects of both factors. First, participants chosenaarmore often when there was an inference in the referential situation that the reference object was the actor’s goal than when there was no such inference. Second, participants choserichtingmore often when they were told to describe the referential scenario to a police officer than to a friend. Participants were more cautious with their statements and were less willing to commit themselves to stating the goal of the agent when talking to a police officer than to a friend. The results are discussed in relation to relevant linguistic theories and event theories.

The role of the l-IPS in the comprehension of reversible and irreversible sentences: an rTMS study

Thematic roles can be seen as semantic labels assigned to who/what is taking part in the event denoted by a verb. Encoding thematic relations is crucial for sentence interpretation since it relies on both syntactic and semantic aspects. In previous studies, repetitive transcranial magnetic stimulation (rTMS) over the left inferior intraparietal sulcus (l-IPS) selectively influenced performance accuracy on reversible passive (but not active) sentences. The effect was attributed to the fact that in these sentences the assignment of the agent and theme roles requires re-analysis of the first-pass sentence parsing.To evaluate the role of reversibility and non-canonical word order (passive voice) on the effect, rTMS was applied over l-IPS during a sentence comprehension task that included reversible and irreversible, active and passive sentences. Participants were asked to identify who/what was performing the action or who/what the action was being performed on.Stimulation of the l-IPS increased response time on reversible passive sentences but not on reversible active sentences. Importantly, no effect was found on irreversible sentences, irrespective of sentence diathesis.Results suggest that neither reversibility nor sentence diathesis alone are responsible for the effect and that the effect is likely to be triggered/constrained by a combination of semantic reversibility and non-canonical word order. Combined with the results of previous studies, and irrespective of the specific role of each feature, these findings support the view that the l-IPS is critically involved in the assignment of thematic roles in reversible sentences.

Children with dyslexia utilize both top-down and bottom-up networks equally in contextual and isolated word reading

IntroductionExecutive functions (EF) include cognitive processes that support learning and reading. Children with dyslexia experience challenges with both reading and reading comprehension. The neurobiological support for EF deficits during reading comprehension, however, has yet to be defined. Here we aimed to identify the neural networks related to EF during a reading comprehension task focusing on top-down and bottom-up networks in children with dyslexia and typical readers (TR). MethodTwenty children with dyslexia and 19 TR aged 8–12 were scanned during a sentence comprehension (SC) task that included isolated words and sentences that make sense, in addition to undergoing reading and EF behavioral assessment. Functional connectivity within and between four EF networks related to top-down and bottom-up processing were calculated. ResultsChildren with dyslexia scored significantly lower in reading and EF testing in several subdomains compared to TR. Children with dyslexia displayed decreased accuracy in both task conditions compared to TR during the SC task. Neuroimaging data analysis revealed that TR had greater functional connectivity within and between top-down and bottom-up processes, in the sentence vs. isolated word condition, compared to children with dyslexia. Discussion: TR demonstrate a reliance on top-down and bottom-up networks only during sentence comprehension. In children with dyslexia, however, this reliance was not found in either of the task conditions, suggesting that both conditions were equally challenging for them. These findings emphasize the involvement of EF networks in the reading comprehension process and highlight their impaired functionality among children with reading difficulties.

Sentence Comprehension and Working Memory in Malay Adults

Studies on sentence comprehension have centered on understanding the intersection between language and cognition. The aim of the current study was to examine the association between complex sentence comprehension and working memory (WM) in Malay adults. We predicted that WM storage (as indexed by performance on a WM listening span task) would be invoked during the processing of complex Malay sentences (object relatives), but not simple sentences (subject-verb-object). Sixty adults participated in the study; 30 Malay- and 30 English native speakers. The experimental tasks were developed in both Malay and English versions for both groups respectively. Participants completed (i) two sets of sentence comprehension tasks (whereby comprehension was determined via selection of the agent of the sentence), and (ii) a conventional WM listening span task. Tasks were designed to be structurally similar in terms of length (within the language) and meaning (across both languages). Both groups performed significantly better on the comprehension of simple sentences as compared to complex sentences and obtained similar mean scores on the WM listening span task. For Malay comprehenders, WM storage did not significantly correlate with comprehension of simple sentences as well as complex sentences. The same correlation pattern was also revealed for the English comprehenders. Our predictions were partially borne out. Findings suggest that participants’ comprehension of complex sentences did not invite WM storage, as it would seem that both Malay and English participants were still able to comprehend these complex sentences without having to tax their WM capacity. Although we anticipated a relation, the absence of such an association is not entirely unexpected. Potential explanations are discussed in this article.

Earlier second language acquisition is associated with greater neural pattern dissimilarity between the first and second languages

It is controversial as to how age of acquisition (AoA) and proficiency level of the second language influence the similarities and differences between the first (L1) and the second (L2) language brain networks. In this functional MRI study, we used representational similarity analysis to quantify the degree of neural similarity between L1 and L2 during sentence comprehension tasks in 26 adult Chinese-English bilinguals, who learned English as L2 at different ages and had different proficiency levels. We found that although L1 and L2 processing activated similar brain regions, greater neural pattern dissimilarity between L1 and L2 was associated with earlier AoA in the left inferior and middle frontal gyri after the effect of proficiency level was controlled. On the other hand, the association between proficiency level and the neural pattern dissimilarity between L1 and L2 was not significant when the effect of AoA was partialled out. The results suggest that the activity pattern of L2 is more distinct from that of L1 in bilingual individuals who acquired L2 earlier and that the contribution of AoA to the neural pattern dissimilarity is greater than that of proficiency level.

Enhanced performance on a sentence comprehension task in congenitally blind adults

ABSTRACT People born blind habitually experience linguistic utterances in the absence of visual cues. Neuroimaging evidence suggests that congenitally blind individuals also activate “visual” cortices during sentence comprehension. Do blind individuals show superior performance on sentence processing tasks? Congenitally blind (n = 25) and age and education matched sighted (n = 52) participants answered yes/no who-did-what-to-whom questions for auditorily presented sentences, some of which contained a grammatical complexity manipulation (long-distance movement dependency or garden path). Short-term memory was measured with a forward and backward letter-span task. A battery of control tasks included two speeded math tasks and vocabulary and reading tasks from Woodcock Johnson III. The blind group outperformed the sighted group on the sentence comprehension task, particularly for garden-path sentences, and on short-term memory span tasks, but performed similar to the sighted group on control tasks. Sentence comprehension performance was not correlated with working memory span performance, suggesting independent enhancements.

Anticipatory Baseline Pupil Diameter Is Sensitive to Differences in Hearing Thresholds.

Task-evoked changes in pupil dilation have long been used as a physiological index of cognitive effort. Unlike this response, that is measured during or after an experimental trial, the baseline pupil dilation (BPD) is a measure taken prior to an experimental trial. As such, it is considered to reflect an individual’s arousal level in anticipation of an experimental trial. We report data for 68 participants, ages 18 to 89, whose hearing acuity ranged from normal hearing to a moderate hearing loss, tested over a series 160 trials on an auditory sentence comprehension task. Results showed that BPDs progressively declined over the course of the experimental trials, with participants with poorer pure tone detection thresholds showing a steeper rate of decline than those with better thresholds. Data showed this slope difference to be due to participants with poorer hearing having larger BPDs than those with better hearing at the start of the experiment, but with their BPDs approaching that of the better hearing participants by the end of the 160 trials. A finding of increasing response accuracy over trials was seen as inconsistent with a fatigue or reduced task engagement account of the diminishing BPDs. Rather, the present results imply BPD as reflecting a heightened arousal level in poorer-hearing participants in anticipation of a task that demands accurate speech perception, a concern that dissipates over trials with task success. These data taken with others suggest that the baseline pupillary response may not reflect a single construct.