An Electrophysiological Investigation of Interhemispheric Transfer Time in Children and Adolescents with High-Functioning Autism Spectrum Disorders / Ann CLAWSON in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.363-375 Titre : An Electrophysiological Investigation of Interhemispheric Transfer Time in Children and Adolescents with High-Functioning Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Ann CLAWSON, Auteur ; Peter E. CLAYSON, Auteur ; Mikle SOUTH, Auteur ; Erin D. BIGLER, Auteur ; Michael J. LARSON, Auteur Article en page(s) : p.363-375 Langues : Anglais (eng) Mots-clés : Autism  Interhemispheric transfer time  N1  P1  Event-related potential  Corpus callosum  White matter Index. décimale : PER Périodiques Résumé : Little is known about the functional impact of putative deficits in white-matter connectivity across the corpus callosum (CC) in individuals with autism spectrum disorders (ASDs). We utilized the temporal sensitivity of event-related potentials to examine the interhemispheric transfer time (IHTT) of basic visual information across the CC in youth with high-functioning ASD relative to healthy controls. We conducted two experiments: a visual letter matching experiment (n = 46) and a visual picture matching experiment, (n = 48) and utilized both electrophysiological (N1 and P1 amplitudes and latencies) and behavioral [response times (RTs), error rates] indices of IHTT. There were no significant group differences on either experiment for RTs, error rates, or N1 and P1 latencies, suggesting that on basic tasks the timing of information flow across the CC may not be altered in high functioning ASD. En ligne : http://dx.doi.org/10.1007/s10803-013-1895-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258 [article] An Electrophysiological Investigation of Interhemispheric Transfer Time in Children and Adolescents with High-Functioning Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Ann CLAWSON, Auteur ; Peter E. CLAYSON, Auteur ; Mikle SOUTH, Auteur ; Erin D. BIGLER, Auteur ; Michael J. LARSON, Auteur . - p.363-375. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.363-375 Mots-clés : Autism  Interhemispheric transfer time  N1  P1  Event-related potential  Corpus callosum  White matter Index. décimale : PER Périodiques Résumé : Little is known about the functional impact of putative deficits in white-matter connectivity across the corpus callosum (CC) in individuals with autism spectrum disorders (ASDs). We utilized the temporal sensitivity of event-related potentials to examine the interhemispheric transfer time (IHTT) of basic visual information across the CC in youth with high-functioning ASD relative to healthy controls. We conducted two experiments: a visual letter matching experiment (n = 46) and a visual picture matching experiment, (n = 48) and utilized both electrophysiological (N1 and P1 amplitudes and latencies) and behavioral [response times (RTs), error rates] indices of IHTT. There were no significant group differences on either experiment for RTs, error rates, or N1 and P1 latencies, suggesting that on basic tasks the timing of information flow across the CC may not be altered in high functioning ASD. En ligne : http://dx.doi.org/10.1007/s10803-013-1895-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258

Anxiety in young people with autism spectrum disorder: Common and autism-related anxiety experiences and their associations with individual characteristics / Boon Yen LAU in Autism, 24-5 (July 2020)  

Public ISBD [article]  inAutism > 24-5 (July 2020) . - p.1111-1126 Titre : Anxiety in young people with autism spectrum disorder: Common and autism-related anxiety experiences and their associations with individual characteristics Type de document : Texte imprimé et/ou numérique Auteurs : Boon Yen LAU, Auteur ; Ruth LEONG, Auteur ; Mirko ULJAREVIC, Auteur ; Jian Wei LERH, Auteur ; Jacqui RODGERS, Auteur ; Matthew J. HOLLOCKS, Auteur ; Mikle SOUTH, Auteur ; Helen MCCONACHIE, Auteur ; Ann OZSIVADJIAN, Auteur ; Amy VAN HECKE, Auteur ; Robin LIBOVE, Auteur ; Antonio HARDAN, Auteur ; Susan LEEKAM, Auteur ; Emily SIMONOFF, Auteur ; Iliana MAGIATI, Auteur Article en page(s) : p.1111-1126 Langues : Anglais (eng) Mots-clés : anxiety  assessment  autism spectrum disorder  children  comorbidity  measurement  phenomenology  presentation  young people Index. décimale : PER Périodiques Résumé : Anxiety is common in autism spectrum disorder. Many anxiety symptoms in autism spectrum disorder are consistent with Diagnostic and Statistical Manual of Mental Disorders (5th ed.) anxiety disorders (termed "common" anxieties), but others may be qualitatively different, likely relating to autism spectrum disorder traits (herein termed "autism-related" anxieties). To date, few studies have examined both "common" and "autism-related" anxiety experiences in autism spectrum disorder. We explored caregiver-reported Spence Children's Anxiety Scale-Parent version data from a multi-site (United Kingdom, Singapore, and United States) pooled database of 870 6- to 18-year-old participants with autism spectrum disorder, of whom 287 provided at least one written response to the optional open-ended Spence Children's Anxiety Scale-Parent item 39 ("Is there anything else your child is afraid of?"). Responses were thematically coded to explore (a) common and autism-related anxiety presentations and (b) their relationship with young people's characteristics. Nearly half of the responses were autism-related anxieties (mostly sensory, uncommon, or idiosyncratic specific phobias and worries about change and unpredictability). The other half described additional common anxieties not covered in the original measure (mostly social, weather and environmental disasters, and animals). Caregivers of participants who were more severely affected by autism spectrum disorder symptoms reported more autism-related, as compared to common, additional anxieties. Implications for the assessment and understanding of anxiety in autism are discussed. En ligne : http://dx.doi.org/10.1177/1362361319886246 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426 [article] Anxiety in young people with autism spectrum disorder: Common and autism-related anxiety experiences and their associations with individual characteristics [Texte imprimé et/ou numérique] / Boon Yen LAU, Auteur ; Ruth LEONG, Auteur ; Mirko ULJAREVIC, Auteur ; Jian Wei LERH, Auteur ; Jacqui RODGERS, Auteur ; Matthew J. HOLLOCKS, Auteur ; Mikle SOUTH, Auteur ; Helen MCCONACHIE, Auteur ; Ann OZSIVADJIAN, Auteur ; Amy VAN HECKE, Auteur ; Robin LIBOVE, Auteur ; Antonio HARDAN, Auteur ; Susan LEEKAM, Auteur ; Emily SIMONOFF, Auteur ; Iliana MAGIATI, Auteur . - p.1111-1126. Langues : Anglais (eng) in Autism > 24-5 (July 2020) . - p.1111-1126 Mots-clés : anxiety  assessment  autism spectrum disorder  children  comorbidity  measurement  phenomenology  presentation  young people Index. décimale : PER Périodiques Résumé : Anxiety is common in autism spectrum disorder. Many anxiety symptoms in autism spectrum disorder are consistent with Diagnostic and Statistical Manual of Mental Disorders (5th ed.) anxiety disorders (termed "common" anxieties), but others may be qualitatively different, likely relating to autism spectrum disorder traits (herein termed "autism-related" anxieties). To date, few studies have examined both "common" and "autism-related" anxiety experiences in autism spectrum disorder. We explored caregiver-reported Spence Children's Anxiety Scale-Parent version data from a multi-site (United Kingdom, Singapore, and United States) pooled database of 870 6- to 18-year-old participants with autism spectrum disorder, of whom 287 provided at least one written response to the optional open-ended Spence Children's Anxiety Scale-Parent item 39 ("Is there anything else your child is afraid of?"). Responses were thematically coded to explore (a) common and autism-related anxiety presentations and (b) their relationship with young people's characteristics. Nearly half of the responses were autism-related anxieties (mostly sensory, uncommon, or idiosyncratic specific phobias and worries about change and unpredictability). The other half described additional common anxieties not covered in the original measure (mostly social, weather and environmental disasters, and animals). Caregivers of participants who were more severely affected by autism spectrum disorder symptoms reported more autism-related, as compared to common, additional anxieties. Implications for the assessment and understanding of anxiety in autism are discussed. En ligne : http://dx.doi.org/10.1177/1362361319886246 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426

Better fear conditioning is associated with reduced symptom severity in autism spectrum disorders / Mikle SOUTH in Autism Research, 4-6 (December 2011)  

Public ISBD [article]  inAutism Research > 4-6 (December 2011) . - p.412-421 Titre : Better fear conditioning is associated with reduced symptom severity in autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Mikle SOUTH, Auteur ; Michael J. LARSON, Auteur ; Sarah E. WHITE, Auteur ; Julianne DANA, Auteur ; Michael J. CROWLEY, Auteur Année de publication : 2012 Article en page(s) : p.412-421 Langues : Anglais (eng) Mots-clés : autism spectrum disorders  amygdala  anxiety  fear conditioning  dimensional measures Index. décimale : PER Périodiques Résumé : Evidence from behavioral and neuroimaging studies suggest that atypical amygdala function plays a critical role in the development of autism spectrum disorders (ASD). The handful of psychophysiological studies examining amygdala function in ASD using classical fear conditioning paradigms have yielded discordant results. We recorded skin conductance response (SCR) during a simple discrimination conditioning task in 30 children and adolescents (ages 8–18) diagnosed with high-functioning ASD and 30 age- and IQ-matched, typically developing controls. SCR response in the ASD group was uniquely and positively associated with social anxiety; and negatively correlated with autism symptom severity, in particular with social functioning. Fear conditioning studies have tremendous potential to aid understanding regarding the amygdale's role in the varied symptom profile of ASD. Our data demonstrate that such studies require careful attention to task-specific factors, including task complexity; and also to contributions of dimensional, within-group factors that contribute to ASD heterogeneity. En ligne : http://dx.doi.org/10.1002/aur.221 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=151 [article] Better fear conditioning is associated with reduced symptom severity in autism spectrum disorders [Texte imprimé et/ou numérique] / Mikle SOUTH, Auteur ; Michael J. LARSON, Auteur ; Sarah E. WHITE, Auteur ; Julianne DANA, Auteur ; Michael J. CROWLEY, Auteur . - 2012 . - p.412-421. Langues : Anglais (eng) in Autism Research > 4-6 (December 2011) . - p.412-421 Mots-clés : autism spectrum disorders  amygdala  anxiety  fear conditioning  dimensional measures Index. décimale : PER Périodiques Résumé : Evidence from behavioral and neuroimaging studies suggest that atypical amygdala function plays a critical role in the development of autism spectrum disorders (ASD). The handful of psychophysiological studies examining amygdala function in ASD using classical fear conditioning paradigms have yielded discordant results. We recorded skin conductance response (SCR) during a simple discrimination conditioning task in 30 children and adolescents (ages 8–18) diagnosed with high-functioning ASD and 30 age- and IQ-matched, typically developing controls. SCR response in the ASD group was uniquely and positively associated with social anxiety; and negatively correlated with autism symptom severity, in particular with social functioning. Fear conditioning studies have tremendous potential to aid understanding regarding the amygdale's role in the varied symptom profile of ASD. Our data demonstrate that such studies require careful attention to task-specific factors, including task complexity; and also to contributions of dimensional, within-group factors that contribute to ASD heterogeneity. En ligne : http://dx.doi.org/10.1002/aur.221 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=151

Book Reviews / Mikle SOUTH in Autism, 6-1 (March 2002)  

Public ISBD [article]  inAutism > 6-1 (March 2002) . - p.132-133 Titre : Book Reviews Type de document : Texte imprimé et/ou numérique Auteurs : Mikle SOUTH, Auteur Article en page(s) : p.132-133 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361302006001011 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=209 [article] Book Reviews [Texte imprimé et/ou numérique] / Mikle SOUTH, Auteur . - p.132-133. Langues : Anglais (eng) in Autism > 6-1 (March 2002) . - p.132-133 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361302006001011 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=209

Cognitive control and conflict adaptation in youth with high-functioning autism / Michael J. LARSON in Journal of Child Psychology and Psychiatry, 53-4 (April 2012)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 53-4 (April 2012) . - p.440-448 Titre : Cognitive control and conflict adaptation in youth with high-functioning autism Type de document : Texte imprimé et/ou numérique Auteurs : Michael J. LARSON, Auteur ; Mikle SOUTH, Auteur ; Peter E. CLAYSON, Auteur ; Ann CLAWSON, Auteur Année de publication : 2012 Article en page(s) : p.440-448 Langues : Anglais (eng) Mots-clés : N2  event-related potential  autism  conflict adaptation  cognitive control Index. décimale : PER Périodiques Résumé : Background:  Youth diagnosed with autism spectrum disorders (ASD) often show deficits in cognitive control processes, potentially contributing to characteristic difficulties monitoring and regulating behavior. Modification of performance following conflict can be measured by examining conflict adaptation, the adjustment of cognitive resources based on previous-trial conflict. The electrophysiological correlates of these processes can be measured using the N2, a stimulus-locked component of the event-related potential (ERP). Methods:  High-density ERPs and behavioral data [i.e. response times (RTs) and error rates] were acquired while 28 youth with ASD and 36 typically developing controls completed a modified Eriksen flanker task. Results:  Behaviorally, groups showed similar conflict adaptation effects; youth with ASD showed larger RT slowing on switch trials. For electrophysiology, controls demonstrated larger N2 amplitudes for incongruent (high-conflict) trials following congruent (low-conflict) trials than for incongruent trials following incongruent trials. Importantly, youth with ASD showed no such differences in N2 amplitude based on previous-trial conflict. Conclusions:  Lack of electrophysiological conflict adaptation effects in youth with ASD indicates irregular neural processing associated with conflict adaptation. Individuals with ASD show declines in level of conflict evaluation and adaptation. Future research is necessary to accurately characterize and understand the behavioral implications of these cognitive control deficits relative to diagnostic severity, anxiety, and personality. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02498.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152 [article] Cognitive control and conflict adaptation in youth with high-functioning autism [Texte imprimé et/ou numérique] / Michael J. LARSON, Auteur ; Mikle SOUTH, Auteur ; Peter E. CLAYSON, Auteur ; Ann CLAWSON, Auteur . - 2012 . - p.440-448. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 53-4 (April 2012) . - p.440-448 Mots-clés : N2  event-related potential  autism  conflict adaptation  cognitive control Index. décimale : PER Périodiques Résumé : Background:  Youth diagnosed with autism spectrum disorders (ASD) often show deficits in cognitive control processes, potentially contributing to characteristic difficulties monitoring and regulating behavior. Modification of performance following conflict can be measured by examining conflict adaptation, the adjustment of cognitive resources based on previous-trial conflict. The electrophysiological correlates of these processes can be measured using the N2, a stimulus-locked component of the event-related potential (ERP). Methods:  High-density ERPs and behavioral data [i.e. response times (RTs) and error rates] were acquired while 28 youth with ASD and 36 typically developing controls completed a modified Eriksen flanker task. Results:  Behaviorally, groups showed similar conflict adaptation effects; youth with ASD showed larger RT slowing on switch trials. For electrophysiology, controls demonstrated larger N2 amplitudes for incongruent (high-conflict) trials following congruent (low-conflict) trials than for incongruent trials following incongruent trials. Importantly, youth with ASD showed no such differences in N2 amplitude based on previous-trial conflict. Conclusions:  Lack of electrophysiological conflict adaptation effects in youth with ASD indicates irregular neural processing associated with conflict adaptation. Individuals with ASD show declines in level of conflict evaluation and adaptation. Future research is necessary to accurately characterize and understand the behavioral implications of these cognitive control deficits relative to diagnostic severity, anxiety, and personality. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02498.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152

Cognitive defusion for reducing distressing thoughts in adults with autism / Max E. MAISEL in Research in Autism Spectrum Disorders, 59 (March 2019)  

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Common Threads, Age-related Differences, and Avenues for Future Research: Response to Heaton / Kevin G. STEPHENSON in Journal of Autism and Developmental Disorders, 46-4 (April 2016)  

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Conflict adaptation and congruency sequence effects to social–emotional stimuli in individuals with autism spectrum disorders / Whitney WORSHAM in Autism, 19-8 (November 2015)  

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Corrigendum to “Cognitive defusion for reducing distressing thoughts in adults with autism” [Res. Autism Spectrum Disord. 59 (2019) 34–45] / Max E. MAISEL in Research in Autism Spectrum Disorders, 65 (September 2019)  

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Delayed Reversal Learning and Association With Repetitive Behavior in Autism Spectrum Disorders / Mikle SOUTH in Autism Research, 5-6 (December 2012)  

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DSM-IV-Defined Asperger Syndrome: Cognitive, Behavioral and Early History Differentiation from High-Functioning Autism / Sally OZONOFF in Autism, 4-1 (March 2000)  

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Electrophysiological Endophenotypes and the Error-Related Negativity (ERN) in Autism Spectrum Disorder: A Family Study / Ann CLAWSON in Journal of Autism and Developmental Disorders, 47-5 (May 2017)  

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Executive Functions / Sally OZONOFF

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Failure is Not an Option: Risk-Taking is Moderated by Anxiety and Also by Cognitive Ability in Children and Adolescents Diagnosed with an Autism Spectrum Disorder / Mikle SOUTH in Journal of Autism and Developmental Disorders, 41-1 (January 2011)  

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Inter-trial coherence of medial frontal theta oscillations linked to differential feedback processing in youth and young adults with autism / Stefon VAN NOORDT in Research in Autism Spectrum Disorders, 37 (May 2017)  

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