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Lexical processing in individuals with high-functioning autism and Asperger’s disorder / Samantha SPEIRS in Autism, 15-3 (May 2011)
[article]
Titre : Lexical processing in individuals with high-functioning autism and Asperger’s disorder Type de document : Texte imprimé et/ou numérique Auteurs : Samantha SPEIRS, Auteur ; Greg YELLAND, Auteur ; Nicole J. RINEHART, Auteur ; Bruce J. TONGE, Auteur Année de publication : 2011 Article en page(s) : p.307-325 Langues : Anglais (eng) Mots-clés : Asperger’s disorder autism language lexical processing masked priming word recognition Index. décimale : PER Périodiques Résumé : The presence or absence of clinically delayed language development prior to 3 years of age is a key, but contentious, clinical feature distinguishing autism from Asperger’s disorder. The aim of this study was to examine language processing in children with high-functioning autism (HFA) and Asperger’s disorder (AD) using a task which taps lexical processing, a core language ability. Eleven individuals with HFA, 11 with AD and 11 typically developing (TD) individuals completed a masked priming task, a psycholinguistic paradigm that directly examines lexical processes. Within-group analyses revealed the AD and TD groups had intact lexical processing systems and orthographic processing of the written word. The outcomes for the HFA group were ambiguous, suggesting that their lexical processing system is either delayed or is structurally different. This suggests that fundamental differences in lexical processing exist between HFA and AD and remain evident later in development. En ligne : http://dx.doi.org/10.1177/1362361310386501 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=130
in Autism > 15-3 (May 2011) . - p.307-325[article] Lexical processing in individuals with high-functioning autism and Asperger’s disorder [Texte imprimé et/ou numérique] / Samantha SPEIRS, Auteur ; Greg YELLAND, Auteur ; Nicole J. RINEHART, Auteur ; Bruce J. TONGE, Auteur . - 2011 . - p.307-325.
Langues : Anglais (eng)
in Autism > 15-3 (May 2011) . - p.307-325
Mots-clés : Asperger’s disorder autism language lexical processing masked priming word recognition Index. décimale : PER Périodiques Résumé : The presence or absence of clinically delayed language development prior to 3 years of age is a key, but contentious, clinical feature distinguishing autism from Asperger’s disorder. The aim of this study was to examine language processing in children with high-functioning autism (HFA) and Asperger’s disorder (AD) using a task which taps lexical processing, a core language ability. Eleven individuals with HFA, 11 with AD and 11 typically developing (TD) individuals completed a masked priming task, a psycholinguistic paradigm that directly examines lexical processes. Within-group analyses revealed the AD and TD groups had intact lexical processing systems and orthographic processing of the written word. The outcomes for the HFA group were ambiguous, suggesting that their lexical processing system is either delayed or is structurally different. This suggests that fundamental differences in lexical processing exist between HFA and AD and remain evident later in development. En ligne : http://dx.doi.org/10.1177/1362361310386501 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=130 Lexical Processing in School-Age Children with Autism Spectrum Disorder and Children with Specific Language Impairment: The Role of Semantics / Eileen HAEBIG in Journal of Autism and Developmental Disorders, 45-12 (December 2015)
[article]
Titre : Lexical Processing in School-Age Children with Autism Spectrum Disorder and Children with Specific Language Impairment: The Role of Semantics Type de document : Texte imprimé et/ou numérique Auteurs : Eileen HAEBIG, Auteur ; Margarita KAUSHANSKAYA, Auteur ; Susan ELLIS WEISMER, Auteur Article en page(s) : p.4109-4123 Langues : Anglais (eng) Mots-clés : Autism Specific language impairment Lexical processing Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) and specific language impairment (SLI) often have immature lexical-semantic knowledge; however, the organization of lexical-semantic knowledge is poorly understood. This study examined lexical processing in school-age children with ASD, SLI, and typical development, who were matched on receptive vocabulary. Children completed a lexical decision task, involving words with high and low semantic network sizes and nonwords. Children also completed nonverbal updating and shifting tasks. Children responded more accurately to words from high than from low semantic networks; however, follow-up analyses identified weaker semantic network effects in the SLI group. Additionally, updating and shifting abilities predicted lexical processing, demonstrating similarity in the mechanisms which underlie semantic processing in children with ASD, SLI, and typical development. En ligne : http://dx.doi.org/10.1007/s10803-015-2534-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=274
in Journal of Autism and Developmental Disorders > 45-12 (December 2015) . - p.4109-4123[article] Lexical Processing in School-Age Children with Autism Spectrum Disorder and Children with Specific Language Impairment: The Role of Semantics [Texte imprimé et/ou numérique] / Eileen HAEBIG, Auteur ; Margarita KAUSHANSKAYA, Auteur ; Susan ELLIS WEISMER, Auteur . - p.4109-4123.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 45-12 (December 2015) . - p.4109-4123
Mots-clés : Autism Specific language impairment Lexical processing Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) and specific language impairment (SLI) often have immature lexical-semantic knowledge; however, the organization of lexical-semantic knowledge is poorly understood. This study examined lexical processing in school-age children with ASD, SLI, and typical development, who were matched on receptive vocabulary. Children completed a lexical decision task, involving words with high and low semantic network sizes and nonwords. Children also completed nonverbal updating and shifting tasks. Children responded more accurately to words from high than from low semantic networks; however, follow-up analyses identified weaker semantic network effects in the SLI group. Additionally, updating and shifting abilities predicted lexical processing, demonstrating similarity in the mechanisms which underlie semantic processing in children with ASD, SLI, and typical development. En ligne : http://dx.doi.org/10.1007/s10803-015-2534-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=274 Lexical Processing in Toddlers with ASD: Does Weak Central Coherence Play a Role? / Susan ELLIS WEISMER in Journal of Autism and Developmental Disorders, 46-12 (December 2016)
[article]
Titre : Lexical Processing in Toddlers with ASD: Does Weak Central Coherence Play a Role? Type de document : Texte imprimé et/ou numérique Auteurs : Susan ELLIS WEISMER, Auteur ; Eileen HAEBIG, Auteur ; Jan EDWARDS, Auteur ; Jenny SAFFRAN, Auteur ; Courtney E. VENKER, Auteur Article en page(s) : p.3755-3769 Langues : Anglais (eng) Mots-clés : Autism Lexical processing Weak central coherence Receptive vocabulary Toddlers Index. décimale : PER Périodiques Résumé : This study investigated whether vocabulary delays in toddlers with autism spectrum disorders (ASD) can be explained by a cognitive style that prioritizes processing of detailed, local features of input over global contextual integration—as claimed by the weak central coherence (WCC) theory. Thirty toddlers with ASD and 30 younger, cognition-matched typical controls participated in a looking-while-listening task that assessed whether perceptual or semantic similarities among named images disrupted word recognition relative to a neutral condition. Overlap of perceptual features invited local processing whereas semantic overlap invited global processing. With the possible exception of a subset of toddlers who had very low vocabulary skills, these results provide no evidence that WCC is characteristic of lexical processing in toddlers with ASD. En ligne : http://dx.doi.org/10.1007/s10803-016-2926-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297
in Journal of Autism and Developmental Disorders > 46-12 (December 2016) . - p.3755-3769[article] Lexical Processing in Toddlers with ASD: Does Weak Central Coherence Play a Role? [Texte imprimé et/ou numérique] / Susan ELLIS WEISMER, Auteur ; Eileen HAEBIG, Auteur ; Jan EDWARDS, Auteur ; Jenny SAFFRAN, Auteur ; Courtney E. VENKER, Auteur . - p.3755-3769.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-12 (December 2016) . - p.3755-3769
Mots-clés : Autism Lexical processing Weak central coherence Receptive vocabulary Toddlers Index. décimale : PER Périodiques Résumé : This study investigated whether vocabulary delays in toddlers with autism spectrum disorders (ASD) can be explained by a cognitive style that prioritizes processing of detailed, local features of input over global contextual integration—as claimed by the weak central coherence (WCC) theory. Thirty toddlers with ASD and 30 younger, cognition-matched typical controls participated in a looking-while-listening task that assessed whether perceptual or semantic similarities among named images disrupted word recognition relative to a neutral condition. Overlap of perceptual features invited local processing whereas semantic overlap invited global processing. With the possible exception of a subset of toddlers who had very low vocabulary skills, these results provide no evidence that WCC is characteristic of lexical processing in toddlers with ASD. En ligne : http://dx.doi.org/10.1007/s10803-016-2926-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=297 Severity of Autism is Related to Children's Language Processing / Edith L. BAVIN in Autism Research, 7-6 (December 2014)
[article]
Titre : Severity of Autism is Related to Children's Language Processing Type de document : Texte imprimé et/ou numérique Auteurs : Edith L. BAVIN, Auteur ; Evan KIDD, Auteur ; Luke A. PRENDERGAST, Auteur ; Emma K. BAKER, Auteur ; Cheryl DISSANAYAKE, Auteur ; Margot PRIOR, Auteur Article en page(s) : p.687-694 Langues : Anglais (eng) Mots-clés : lexical processing severity of ASD eye tracking children Index. décimale : PER Périodiques Résumé : Problems in language processing have been associated with autism spectrum disorder (ASD), with some research attributing the problems to overall language skills rather than a diagnosis of ASD. Lexical access was assessed in a looking-while-listening task in three groups of 5- to 7-year-old children; two had high-functioning ASD (HFA), an ASD severe (ASD-S) group (n?=?16) and an ASD moderate (ASD-M) group (n?=?21). The third group were typically developing (TD) (n?=?48). Participants heard sentences of the form “Where's the x?” and their eye movements to targets (e.g., train), phonological competitors (e.g., tree), and distractors were recorded. Proportions of looking time at target were analyzed within 200?ms intervals. Significant group differences were found between the ASD-S and TD groups only, at time intervals 1000–1200 and 1200–1400?ms postonset. The TD group was more likely to be fixated on target. These differences were maintained after adjusting for language, verbal and nonverbal IQ, and attention scores. An analysis using parent report of autistic-like behaviors showed higher scores to be associated with lower proportions of looking time at target, regardless of group. Further analysis showed fixation for the TD group to be significantly faster than for the ASD-S. In addition, incremental processing was found for all groups. The study findings suggest that severity of autistic behaviors will impact significantly on children's language processing in real life situations when exposed to syntactically complex material. They also show the value of using online methods for understanding how young children with ASD process language. En ligne : http://dx.doi.org/10.1002/aur.1410 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=256
in Autism Research > 7-6 (December 2014) . - p.687-694[article] Severity of Autism is Related to Children's Language Processing [Texte imprimé et/ou numérique] / Edith L. BAVIN, Auteur ; Evan KIDD, Auteur ; Luke A. PRENDERGAST, Auteur ; Emma K. BAKER, Auteur ; Cheryl DISSANAYAKE, Auteur ; Margot PRIOR, Auteur . - p.687-694.
Langues : Anglais (eng)
in Autism Research > 7-6 (December 2014) . - p.687-694
Mots-clés : lexical processing severity of ASD eye tracking children Index. décimale : PER Périodiques Résumé : Problems in language processing have been associated with autism spectrum disorder (ASD), with some research attributing the problems to overall language skills rather than a diagnosis of ASD. Lexical access was assessed in a looking-while-listening task in three groups of 5- to 7-year-old children; two had high-functioning ASD (HFA), an ASD severe (ASD-S) group (n?=?16) and an ASD moderate (ASD-M) group (n?=?21). The third group were typically developing (TD) (n?=?48). Participants heard sentences of the form “Where's the x?” and their eye movements to targets (e.g., train), phonological competitors (e.g., tree), and distractors were recorded. Proportions of looking time at target were analyzed within 200?ms intervals. Significant group differences were found between the ASD-S and TD groups only, at time intervals 1000–1200 and 1200–1400?ms postonset. The TD group was more likely to be fixated on target. These differences were maintained after adjusting for language, verbal and nonverbal IQ, and attention scores. An analysis using parent report of autistic-like behaviors showed higher scores to be associated with lower proportions of looking time at target, regardless of group. Further analysis showed fixation for the TD group to be significantly faster than for the ASD-S. In addition, incremental processing was found for all groups. The study findings suggest that severity of autistic behaviors will impact significantly on children's language processing in real life situations when exposed to syntactically complex material. They also show the value of using online methods for understanding how young children with ASD process language. En ligne : http://dx.doi.org/10.1002/aur.1410 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=256 Atypical audiovisual word processing in school-age children with a history of specific language impairment: an event-related potential study / N. KAGANOVICH in Journal of Neurodevelopmental Disorders, 8-1 (December 2016)
[article]
Titre : Atypical audiovisual word processing in school-age children with a history of specific language impairment: an event-related potential study Type de document : Texte imprimé et/ou numérique Auteurs : N. KAGANOVICH, Auteur ; J. SCHUMAKER, Auteur ; C. ROWLAND, Auteur Article en page(s) : p.33 Langues : Anglais (eng) Mots-clés : Audiovisual matching Event-related potentials Lexical processing Specific language impairment Speech-in-noise perception Index. décimale : PER Périodiques Résumé : BACKGROUND: Visual speech cues influence different aspects of language acquisition. However, whether developmental language disorders may be associated with atypical processing of visual speech is unknown. In this study, we used behavioral and ERP measures to determine whether children with a history of SLI (H-SLI) differ from their age-matched typically developing (TD) peers in the ability to match auditory words with corresponding silent visual articulations. METHODS: Nineteen 7-13-year-old H-SLI children and 19 age-matched TD children participated in the study. Children first heard a word and then saw a speaker silently articulating a word. In half of trials, the articulated word matched the auditory word (congruent trials), while in another half, it did not (incongruent trials). Children specified whether the auditory and the articulated words matched. We examined ERPs elicited by the onset of visual stimuli (visual P1, N1, and P2) as well as ERPs elicited by the articulatory movements themselves-namely, N400 to incongruent articulations and late positive complex (LPC) to congruent articulations. We also examined whether ERP measures of visual speech processing could predict (1) children's linguistic skills and (2) the use of visual speech cues when listening to speech-in-noise (SIN). RESULTS: H-SLI children were less accurate in matching auditory words with visual articulations. They had a significantly reduced P1 to the talker's face and a smaller N400 to incongruent articulations. In contrast, congruent articulations elicited LPCs of similar amplitude in both groups of children. The P1 and N400 amplitude was significantly correlated with accuracy enhancement on the SIN task when seeing the talker's face. CONCLUSIONS: H-SLI children have poorly defined correspondences between speech sounds and visually observed articulatory movements that produce them. En ligne : http://dx.doi.org/10.1186/s11689-016-9168-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.33[article] Atypical audiovisual word processing in school-age children with a history of specific language impairment: an event-related potential study [Texte imprimé et/ou numérique] / N. KAGANOVICH, Auteur ; J. SCHUMAKER, Auteur ; C. ROWLAND, Auteur . - p.33.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.33
Mots-clés : Audiovisual matching Event-related potentials Lexical processing Specific language impairment Speech-in-noise perception Index. décimale : PER Périodiques Résumé : BACKGROUND: Visual speech cues influence different aspects of language acquisition. However, whether developmental language disorders may be associated with atypical processing of visual speech is unknown. In this study, we used behavioral and ERP measures to determine whether children with a history of SLI (H-SLI) differ from their age-matched typically developing (TD) peers in the ability to match auditory words with corresponding silent visual articulations. METHODS: Nineteen 7-13-year-old H-SLI children and 19 age-matched TD children participated in the study. Children first heard a word and then saw a speaker silently articulating a word. In half of trials, the articulated word matched the auditory word (congruent trials), while in another half, it did not (incongruent trials). Children specified whether the auditory and the articulated words matched. We examined ERPs elicited by the onset of visual stimuli (visual P1, N1, and P2) as well as ERPs elicited by the articulatory movements themselves-namely, N400 to incongruent articulations and late positive complex (LPC) to congruent articulations. We also examined whether ERP measures of visual speech processing could predict (1) children's linguistic skills and (2) the use of visual speech cues when listening to speech-in-noise (SIN). RESULTS: H-SLI children were less accurate in matching auditory words with visual articulations. They had a significantly reduced P1 to the talker's face and a smaller N400 to incongruent articulations. In contrast, congruent articulations elicited LPCs of similar amplitude in both groups of children. The P1 and N400 amplitude was significantly correlated with accuracy enhancement on the SIN task when seeing the talker's face. CONCLUSIONS: H-SLI children have poorly defined correspondences between speech sounds and visually observed articulatory movements that produce them. En ligne : http://dx.doi.org/10.1186/s11689-016-9168-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349 Specificity of Phonological Representations for Children with Autism Spectrum Disorder / R. POMPER in Journal of Autism and Developmental Disorders, 49-8 (August 2019)
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