51 recherche sur le mot-clé 'Semantic-priming'

Accessing and selecting word meaning in autism spectrum disorder / Lynnette M. HENDERSON in Journal of Child Psychology and Psychiatry, 52-9 (September 2011)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 52-9 (September 2011) . - p.964-973 Titre : Accessing and selecting word meaning in autism spectrum disorder Type de document : texte imprimé Auteurs : Lynnette M. HENDERSON, Auteur ; Paula J. CLARKE, Auteur ; Margaret J. SNOWLING, Auteur Année de publication : 2011 Article en page(s) : p.964-973 Langues : Anglais (eng) Mots-clés : Language comprehension  ambiguity resolution  semantic priming  homonyms  poor comprehenders Index. décimale : PER Périodiques Résumé : Background:  Comprehension difficulties are commonly reported in autism spectrum disorder (ASD) but the causes of these difficulties are poorly understood. This study investigates how children with ASD access and select meanings of ambiguous words to test four hypotheses regarding the nature of their comprehension difficulties: semantic deficit, weak central coherence, reduced top-down control and inhibition deficit. Methods:  The cross-modal semantic priming paradigm was used. Children heard homonym primes in isolation or as final words in sentences biased towards the subordinate meaning and then named picture targets depicting dominant or subordinate associates of homonyms. Results:  When homonyms were presented in isolation, children with ASD and controls showed priming for dominant and subordinate pictures at 250ms ISI. At 1,000ms ISI, the controls showed dominant (but not subordinate) priming whilst the ASD group did not show any priming. When homonyms were presented in subordinate sentence contexts, both groups only showed priming for context-appropriate (subordinate) meanings at 250ms ISI, suggesting that context has an early influence on meaning selection. At 1,000ms ISI the controls showed context-appropriate (but not inappropriate) priming whereas the ASD group showed both appropriate and inappropriate priming. Conclusions:  Children with ASD showed intact access to semantic information early in the time course of processing; however, they showed impairments in the selection of semantic representations later in processing. These findings suggest that a difficulty with initiating top-down strategies to modulate online semantic processing may compromise language comprehension in ASD. Implications for intervention are discussed. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02393.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=141 [article] Accessing and selecting word meaning in autism spectrum disorder [texte imprimé] / Lynnette M. HENDERSON, Auteur ; Paula J. CLARKE, Auteur ; Margaret J. SNOWLING, Auteur . - 2011 . - p.964-973. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 52-9 (September 2011) . - p.964-973 Mots-clés : Language comprehension  ambiguity resolution  semantic priming  homonyms  poor comprehenders Index. décimale : PER Périodiques Résumé : Background:  Comprehension difficulties are commonly reported in autism spectrum disorder (ASD) but the causes of these difficulties are poorly understood. This study investigates how children with ASD access and select meanings of ambiguous words to test four hypotheses regarding the nature of their comprehension difficulties: semantic deficit, weak central coherence, reduced top-down control and inhibition deficit. Methods:  The cross-modal semantic priming paradigm was used. Children heard homonym primes in isolation or as final words in sentences biased towards the subordinate meaning and then named picture targets depicting dominant or subordinate associates of homonyms. Results:  When homonyms were presented in isolation, children with ASD and controls showed priming for dominant and subordinate pictures at 250ms ISI. At 1,000ms ISI, the controls showed dominant (but not subordinate) priming whilst the ASD group did not show any priming. When homonyms were presented in subordinate sentence contexts, both groups only showed priming for context-appropriate (subordinate) meanings at 250ms ISI, suggesting that context has an early influence on meaning selection. At 1,000ms ISI the controls showed context-appropriate (but not inappropriate) priming whereas the ASD group showed both appropriate and inappropriate priming. Conclusions:  Children with ASD showed intact access to semantic information early in the time course of processing; however, they showed impairments in the selection of semantic representations later in processing. These findings suggest that a difficulty with initiating top-down strategies to modulate online semantic processing may compromise language comprehension in ASD. Implications for intervention are discussed. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02393.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=141

Atypical Lexical/Semantic Processing in High-Functioning Autism Spectrum Disorders without Early Language Delay / Yoko KAMIO in Journal of Autism and Developmental Disorders, 37-6 (July 2007)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 37-6 (July 2007) . - p.1116-1122 Titre : Atypical Lexical/Semantic Processing in High-Functioning Autism Spectrum Disorders without Early Language Delay Type de document : texte imprimé Auteurs : Yoko KAMIO, Auteur ; Diana L. ROBINS, Auteur ; Elizabeth KELLEY, Auteur ; Brook SWAINSON, Auteur ; Deborah A. FEIN, Auteur Année de publication : 2007 Article en page(s) : p.1116-1122 Langues : Anglais (eng) Mots-clés : Asperger’s-disorder High-functioning-pervasive-developmental-disorder-not-otherwise-specified Early-language-delay Semantic-priming Phonological-priming Index. décimale : PER Périodiques Résumé : Although autism is associated with impaired language functions, the nature of semantic processing in high-functioning pervasive developmental disorders (HFPDD) without a history of early language delay has been debated. In this study, we aimed to examine whether the automatic lexical/semantic aspect of language is impaired or intact in these population. Eleven individuals with Asperger’s Disorder (AS) or HFPDD-Not Otherwise Specified (NOS) and age-, IQ-, and gender-matched typically developing individuals performed a semantic decision task in four conditions using an indirect priming paradigm. Semantic priming effects were found for near-semantically related word pairs in the controls, whereas this was not the case in the AS or HFPDDNOS participants. This finding suggests similarities in the underlying semantic processing of language across PDD subtypes. En ligne : http://dx.doi.org/10.1007/s10803-006-0254-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=155 [article] Atypical Lexical/Semantic Processing in High-Functioning Autism Spectrum Disorders without Early Language Delay [texte imprimé] / Yoko KAMIO, Auteur ; Diana L. ROBINS, Auteur ; Elizabeth KELLEY, Auteur ; Brook SWAINSON, Auteur ; Deborah A. FEIN, Auteur . - 2007 . - p.1116-1122. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 37-6 (July 2007) . - p.1116-1122 Mots-clés : Asperger’s-disorder High-functioning-pervasive-developmental-disorder-not-otherwise-specified Early-language-delay Semantic-priming Phonological-priming Index. décimale : PER Périodiques Résumé : Although autism is associated with impaired language functions, the nature of semantic processing in high-functioning pervasive developmental disorders (HFPDD) without a history of early language delay has been debated. In this study, we aimed to examine whether the automatic lexical/semantic aspect of language is impaired or intact in these population. Eleven individuals with Asperger’s Disorder (AS) or HFPDD-Not Otherwise Specified (NOS) and age-, IQ-, and gender-matched typically developing individuals performed a semantic decision task in four conditions using an indirect priming paradigm. Semantic priming effects were found for near-semantically related word pairs in the controls, whereas this was not the case in the AS or HFPDDNOS participants. This finding suggests similarities in the underlying semantic processing of language across PDD subtypes. En ligne : http://dx.doi.org/10.1007/s10803-006-0254-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=155

Efficiency of Lexical Access in Children with Autism Spectrum Disorders: Does Modality Matter? / Keely HARPER-HILL in Journal of Autism and Developmental Disorders, 44-8 (August 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-8 (August 2014) . - p.1819-1832 Titre : Efficiency of Lexical Access in Children with Autism Spectrum Disorders: Does Modality Matter? Type de document : texte imprimé Auteurs : Keely HARPER-HILL, Auteur ; David COPLAND, Auteur ; Wendy ARNOTT, Auteur Article en page(s) : p.1819-1832 Langues : Anglais (eng) Mots-clés : Children  Language  Semantic priming  Retrospective semantic matching  Attention  Visual support  Autism spectrum disorders Index. décimale : PER Périodiques Résumé : The provision of visual support to individuals with an autism spectrum disorder (ASD) is widely recommended. We explored one mechanism underlying the use of visual supports: efficiency of language processing. Two groups of children, one with and one without an ASD, participated. The groups had comparable oral and written language skills and nonverbal cognitive abilities. In two semantic priming experiments, prime modality and prime–target relatedness were manipulated. Response time and accuracy of lexical decisions on the spoken word targets were measured. In the first uni-modal experiment, both groups demonstrated significant priming effects. In the second experiment which was cross-modal, no effect for relatedness or group was found. This result is considered in the light of the attentional capacity required for access to the lexicon via written stimuli within the developing semantic system. These preliminary findings are also considered with respect to the use of visual support for children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-014-2055-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236 [article] Efficiency of Lexical Access in Children with Autism Spectrum Disorders: Does Modality Matter? [texte imprimé] / Keely HARPER-HILL, Auteur ; David COPLAND, Auteur ; Wendy ARNOTT, Auteur . - p.1819-1832. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-8 (August 2014) . - p.1819-1832 Mots-clés : Children  Language  Semantic priming  Retrospective semantic matching  Attention  Visual support  Autism spectrum disorders Index. décimale : PER Périodiques Résumé : The provision of visual support to individuals with an autism spectrum disorder (ASD) is widely recommended. We explored one mechanism underlying the use of visual supports: efficiency of language processing. Two groups of children, one with and one without an ASD, participated. The groups had comparable oral and written language skills and nonverbal cognitive abilities. In two semantic priming experiments, prime modality and prime–target relatedness were manipulated. Response time and accuracy of lexical decisions on the spoken word targets were measured. In the first uni-modal experiment, both groups demonstrated significant priming effects. In the second experiment which was cross-modal, no effect for relatedness or group was found. This result is considered in the light of the attentional capacity required for access to the lexicon via written stimuli within the developing semantic system. These preliminary findings are also considered with respect to the use of visual support for children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-014-2055-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236

Event-related brain potentials during natural speech processing: effects of semantic, morphological and syntactic violations / Angela D. FRIEDERICI in Cognitive Brain Research, 1-3 (October 1993)

Public ISBD [article]  inCognitive Brain Research > 1-3 (October 1993) . - p.183-192 Titre : Event-related brain potentials during natural speech processing: effects of semantic, morphological and syntactic violations Type de document : texte imprimé Auteurs : Angela D. FRIEDERICI, Auteur ; Erdmut PFEIFER, Auteur ; Anja HAHNE, Auteur Année de publication : 1993 Article en page(s) : p.183-192 Langues : Anglais (eng) Mots-clés : Event-related-potential N400 Auditory-word-processing Semantic-priming Syntactic-priming Index. décimale : PER Périodiques Résumé : The present study investigated different aspects of auditory language comprehension. The sentences which were presented as connected speech were either correct or incorrect including a semantic error (selectional restriction), a morphological error (verb inflection), or a syntactic error (phrase structure). After each sentence, a probe word was presented auditorily, and subjects had to decide whether this word was part of the preceding sentence or not. Event-related brain potentials (ERPs) were recorded from 7 scalp electrodes. The ERPs evoked by incorrect sentences differed significantly from the correct ones as a function of error type. Semantic anomalies evoked a ‘classical’ N400 pattern. Morphological errors elicited a pronounced negativity between 300 and 600 ms followed by late positivity. Syntactic errors, in contrast, evoked an early negativity peaking around 180 ms followed by a negativity around 400 ms. The early negativity was only significant over the left anterior electrode. The present data demonstrate that linguistic errors of different categories evoke different ERP patterns. They indicate that with using connected speech as input, different aspects of language comprehension processes cannot only be described with respect to their temporal structure, but eventually also with respect to possible brain systems subserving these processes. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781 [article] Event-related brain potentials during natural speech processing: effects of semantic, morphological and syntactic violations [texte imprimé] / Angela D. FRIEDERICI, Auteur ; Erdmut PFEIFER, Auteur ; Anja HAHNE, Auteur . - 1993 . - p.183-192. Langues : Anglais (eng) in Cognitive Brain Research > 1-3 (October 1993) . - p.183-192 Mots-clés : Event-related-potential N400 Auditory-word-processing Semantic-priming Syntactic-priming Index. décimale : PER Périodiques Résumé : The present study investigated different aspects of auditory language comprehension. The sentences which were presented as connected speech were either correct or incorrect including a semantic error (selectional restriction), a morphological error (verb inflection), or a syntactic error (phrase structure). After each sentence, a probe word was presented auditorily, and subjects had to decide whether this word was part of the preceding sentence or not. Event-related brain potentials (ERPs) were recorded from 7 scalp electrodes. The ERPs evoked by incorrect sentences differed significantly from the correct ones as a function of error type. Semantic anomalies evoked a ‘classical’ N400 pattern. Morphological errors elicited a pronounced negativity between 300 and 600 ms followed by late positivity. Syntactic errors, in contrast, evoked an early negativity peaking around 180 ms followed by a negativity around 400 ms. The early negativity was only significant over the left anterior electrode. The present data demonstrate that linguistic errors of different categories evoke different ERP patterns. They indicate that with using connected speech as input, different aspects of language comprehension processes cannot only be described with respect to their temporal structure, but eventually also with respect to possible brain systems subserving these processes. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781

Activation of Thematic and Taxonomic Relations During Lexical-Semantic Processing in Autistic Children: Evidence From Eye Movements / Tianbi LI ; Ruoxi SHI ; Ran WEI ; Li YI in Autism Research, 18-5 (May 2025)  

Public ISBD [article]  inAutism Research > 18-5 (May 2025) . - p.1037-1049 Titre : Activation of Thematic and Taxonomic Relations During Lexical-Semantic Processing in Autistic Children: Evidence From Eye Movements Type de document : texte imprimé Auteurs : Tianbi LI, Auteur ; Ruoxi SHI, Auteur ; Ran WEI, Auteur ; Li YI, Auteur Article en page(s) : p.1037-1049 Langues : Anglais (eng) Mots-clés : autism  children  eye tracking  lexical-semantic network  lexical-semantic processing  taxonomic relations  thematic relations Index. décimale : PER Périodiques Résumé : ABSTRACT This study investigated the activation of thematic and taxonomic relations during online lexical-semantic processing in autistic children using an eye-tracking competition task. Thirty-six preschool-aged autistic children and 35 age-, gender-, and verbal-IQ-matched neurotypical (NT) children viewed arrays containing a target object, a thematically related competitor, a taxonomically related competitor, and an unrelated distractor while hearing the target word. Results revealed three key findings. First, both groups demonstrated activation of thematic and taxonomic relations during lexical processing, with comparable timing of activation onset. Second, while autistic children began to systematically orient attention to the target as quickly as NT children, they showed reduced overall attention to the target during lexical processing. Third, autistic children exhibited stronger activation of taxonomic relations and stronger taxonomic competition effects on target recognition compared to NT children, whereas their activation of thematic relations and thematic competition effects were comparable to NT children. These findings suggest that while the basic thematic and taxonomic activation processes remain robust in autistic children, and while their initial activation of the target and semantically related representations is as fast as that of NT children, the increased sensitivity to taxonomic relations in autistic children might interfere with the overall processing efficiency of target words. These results advance our understanding of lexical-semantic organization and processing in autism and provide implications for language intervention strategies. En ligne : https://doi.org/10.1002/aur.70023 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=558 [article] Activation of Thematic and Taxonomic Relations During Lexical-Semantic Processing in Autistic Children: Evidence From Eye Movements [texte imprimé] / Tianbi LI, Auteur ; Ruoxi SHI, Auteur ; Ran WEI, Auteur ; Li YI, Auteur . - p.1037-1049. Langues : Anglais (eng) in Autism Research > 18-5 (May 2025) . - p.1037-1049 Mots-clés : autism  children  eye tracking  lexical-semantic network  lexical-semantic processing  taxonomic relations  thematic relations Index. décimale : PER Périodiques Résumé : ABSTRACT This study investigated the activation of thematic and taxonomic relations during online lexical-semantic processing in autistic children using an eye-tracking competition task. Thirty-six preschool-aged autistic children and 35 age-, gender-, and verbal-IQ-matched neurotypical (NT) children viewed arrays containing a target object, a thematically related competitor, a taxonomically related competitor, and an unrelated distractor while hearing the target word. Results revealed three key findings. First, both groups demonstrated activation of thematic and taxonomic relations during lexical processing, with comparable timing of activation onset. Second, while autistic children began to systematically orient attention to the target as quickly as NT children, they showed reduced overall attention to the target during lexical processing. Third, autistic children exhibited stronger activation of taxonomic relations and stronger taxonomic competition effects on target recognition compared to NT children, whereas their activation of thematic relations and thematic competition effects were comparable to NT children. These findings suggest that while the basic thematic and taxonomic activation processes remain robust in autistic children, and while their initial activation of the target and semantically related representations is as fast as that of NT children, the increased sensitivity to taxonomic relations in autistic children might interfere with the overall processing efficiency of target words. These results advance our understanding of lexical-semantic organization and processing in autism and provide implications for language intervention strategies. En ligne : https://doi.org/10.1002/aur.70023 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=558

An Electrophysiological Investigation of Semantic Incongruity Processing by People with Asperger’s Syndrome / Howard RING in Journal of Autism and Developmental Disorders, 37-2 (February 2007)  

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Atypical Neurophysiology Underlying Episodic and Semantic Memory in Adults with Autism Spectrum Disorder / Esha MASSAND in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

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Atypical Social Modulation of Imitation in Autism Spectrum Conditions / Jennifer L. COOK in Journal of Autism and Developmental Disorders, 42-6 (June 2012)  

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Beta-adrenergic antagonism alters functional connectivity during associative processing in a preliminary study of individuals with and without autism / John P. HEGARTY in Autism, 24-3 (April 2020)  

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Brief Report: Predicting Social Skills from Semantic, Syntactic, and Pragmatic Language Among Young Children with Autism Spectrum Disorder / Sarah LEVINSON in Journal of Autism and Developmental Disorders, 50-11 (November 2020)  

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