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Differences in the Late Positive Potential and P300 to Emotional Faces in Individuals with Autism Spectrum Disorder / C. M. KEIFER in Journal of Autism and Developmental Disorders, 49-12 (December 2019)
[article]
Titre : Differences in the Late Positive Potential and P300 to Emotional Faces in Individuals with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : C. M. KEIFER, Auteur ; K. M. HAUSCHILD, Auteur ; B. D. NELSON, Auteur ; G. HAJCAK, Auteur ; M. D. LERNER, Auteur Article en page(s) : p.5009-5022 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Erp Emotion processing Lpp P300 Social cognition Index. décimale : PER Périodiques Résumé : Despite evidence suggesting differences in early event-related potential (ERP) responses to social emotional stimuli, little is known about later stage ERP contributions to social emotional processing in individuals with autism spectrum disorder (ASD). Adults with and without ASD completed a facial emotion recognition task involving stimuli that varied by emotional intensity while electroencephalograms were recorded. Principal components analysis was used to examine P300 and late positive potential (LPP) modulation by emotional intensity. Results indicated that greater ASD symptomatology evinced heightened P300 to high relative to low intensity faces, then heightened LPP to low relative to high intensity faces. Findings suggest that adults with greater ASD symptomatology may demonstrate a lag in engagement in elaborative processing of low intensity faces. En ligne : http://dx.doi.org/10.1007/s10803-019-04207-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=411
in Journal of Autism and Developmental Disorders > 49-12 (December 2019) . - p.5009-5022[article] Differences in the Late Positive Potential and P300 to Emotional Faces in Individuals with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / C. M. KEIFER, Auteur ; K. M. HAUSCHILD, Auteur ; B. D. NELSON, Auteur ; G. HAJCAK, Auteur ; M. D. LERNER, Auteur . - p.5009-5022.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 49-12 (December 2019) . - p.5009-5022
Mots-clés : Autism spectrum disorder Erp Emotion processing Lpp P300 Social cognition Index. décimale : PER Périodiques Résumé : Despite evidence suggesting differences in early event-related potential (ERP) responses to social emotional stimuli, little is known about later stage ERP contributions to social emotional processing in individuals with autism spectrum disorder (ASD). Adults with and without ASD completed a facial emotion recognition task involving stimuli that varied by emotional intensity while electroencephalograms were recorded. Principal components analysis was used to examine P300 and late positive potential (LPP) modulation by emotional intensity. Results indicated that greater ASD symptomatology evinced heightened P300 to high relative to low intensity faces, then heightened LPP to low relative to high intensity faces. Findings suggest that adults with greater ASD symptomatology may demonstrate a lag in engagement in elaborative processing of low intensity faces. En ligne : http://dx.doi.org/10.1007/s10803-019-04207-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=411 Don't touch me! autistic traits modulate early and late ERP components during visual perception of social touch / Leehe PELED-AVRON in Autism Research, 10-6 (June 2017)
[article]
Titre : Don't touch me! autistic traits modulate early and late ERP components during visual perception of social touch Type de document : Texte imprimé et/ou numérique Auteurs : Leehe PELED-AVRON, Auteur ; Simone G. SHAMAY-TSOORY, Auteur Article en page(s) : p.1141-1154 Langues : Anglais (eng) Mots-clés : autistic traits interpersonal touch ERP LPP P1 Index. décimale : PER Périodiques Résumé : Although individuals with autism spectrum disorder (ASD) have impaired responses to interpersonal touch, the underlying neural correlates remain largely unknown. Here, we examined the neural correlates that underlie interpersonal touch perception in individuals with either high or low autistic traits. Fifty-three participants were classified as having either high or low autistic traits based on their performance on the autism quotient (AQ) questionnaire. We hypothesized that individuals with high AQ scores would have relatively high touch hypervigilance, reflected as earlier P1 and stronger late positive potential (LPP) responses, two components of event-related potentials that serve as electrophysiological markers of anxiety bias. We recorded each participant's electroencephalography activity during presentation of images depicting human touch, object touch, and non-touch control images. Consistent with our hypothesis, AQ scores were positively correlated with social touch aversion. Moreover, participants with high AQ scores had earlier P1 and stronger LPP responses when presented with human touch compared to the control images. Importantly, a regression model revealed that earlier P1 and larger LPP amplitude measured during social touch observation can accurately predict higher autistic trait levels. Taken together, these findings indicate that individuals with high levels of autistic traits may have a hypervigilant response to observed social touch. En ligne : http://dx.doi.org/10.1002/aur.1762 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=309
in Autism Research > 10-6 (June 2017) . - p.1141-1154[article] Don't touch me! autistic traits modulate early and late ERP components during visual perception of social touch [Texte imprimé et/ou numérique] / Leehe PELED-AVRON, Auteur ; Simone G. SHAMAY-TSOORY, Auteur . - p.1141-1154.
Langues : Anglais (eng)
in Autism Research > 10-6 (June 2017) . - p.1141-1154
Mots-clés : autistic traits interpersonal touch ERP LPP P1 Index. décimale : PER Périodiques Résumé : Although individuals with autism spectrum disorder (ASD) have impaired responses to interpersonal touch, the underlying neural correlates remain largely unknown. Here, we examined the neural correlates that underlie interpersonal touch perception in individuals with either high or low autistic traits. Fifty-three participants were classified as having either high or low autistic traits based on their performance on the autism quotient (AQ) questionnaire. We hypothesized that individuals with high AQ scores would have relatively high touch hypervigilance, reflected as earlier P1 and stronger late positive potential (LPP) responses, two components of event-related potentials that serve as electrophysiological markers of anxiety bias. We recorded each participant's electroencephalography activity during presentation of images depicting human touch, object touch, and non-touch control images. Consistent with our hypothesis, AQ scores were positively correlated with social touch aversion. Moreover, participants with high AQ scores had earlier P1 and stronger LPP responses when presented with human touch compared to the control images. Importantly, a regression model revealed that earlier P1 and larger LPP amplitude measured during social touch observation can accurately predict higher autistic trait levels. Taken together, these findings indicate that individuals with high levels of autistic traits may have a hypervigilant response to observed social touch. En ligne : http://dx.doi.org/10.1002/aur.1762 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=309 Largely Typical Electrophysiological Affective Responses to Special Interest Stimuli in Adolescents with Autism Spectrum Disorder / K. RIVARD in Journal of Autism and Developmental Disorders, 48-9 (September 2018)
[article]
Titre : Largely Typical Electrophysiological Affective Responses to Special Interest Stimuli in Adolescents with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : K. RIVARD, Auteur ; A. B. PROTZNER, Auteur ; F. BURLES, Auteur ; M. SCHUETZE, Auteur ; I. CHO, Auteur ; K. TEN EYCKE, Auteur ; A. MCCRIMMON, Auteur ; D. DEWEY, Auteur ; F. CORTESE, Auteur ; S. BRAY, Auteur Article en page(s) : p.3133-3143 Langues : Anglais (eng) Mots-clés : Affective Autism spectrum disorder Circumscribed interests Eeg Lpp Index. décimale : PER Périodiques Résumé : Circumscribed interests are a symptom of autism spectrum disorder (ASD) that may be related to exaggerated affective neural responses. However, the use of generic ASD-interest image stimuli has left an open question as to whether affective responses towards individual interests are greater in ASD compared to typically developing (TD) controls. We compared amplitudes of the late positive potential (LPP), an affective electroencephalographic response, between adolescents with ASD (N = 19) and TD adolescents (N = 20), using images tailored to individual likes and dislikes. We found an LPP response for liked and disliked images, relative to neutral, with no difference in amplitude between groups. This suggests that the LPP is not atypical in adolescents with ASD towards images of individual interests. En ligne : http://dx.doi.org/10.1007/s10803-018-3587-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=367
in Journal of Autism and Developmental Disorders > 48-9 (September 2018) . - p.3133-3143[article] Largely Typical Electrophysiological Affective Responses to Special Interest Stimuli in Adolescents with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / K. RIVARD, Auteur ; A. B. PROTZNER, Auteur ; F. BURLES, Auteur ; M. SCHUETZE, Auteur ; I. CHO, Auteur ; K. TEN EYCKE, Auteur ; A. MCCRIMMON, Auteur ; D. DEWEY, Auteur ; F. CORTESE, Auteur ; S. BRAY, Auteur . - p.3133-3143.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 48-9 (September 2018) . - p.3133-3143
Mots-clés : Affective Autism spectrum disorder Circumscribed interests Eeg Lpp Index. décimale : PER Périodiques Résumé : Circumscribed interests are a symptom of autism spectrum disorder (ASD) that may be related to exaggerated affective neural responses. However, the use of generic ASD-interest image stimuli has left an open question as to whether affective responses towards individual interests are greater in ASD compared to typically developing (TD) controls. We compared amplitudes of the late positive potential (LPP), an affective electroencephalographic response, between adolescents with ASD (N = 19) and TD adolescents (N = 20), using images tailored to individual likes and dislikes. We found an LPP response for liked and disliked images, relative to neutral, with no difference in amplitude between groups. This suggests that the LPP is not atypical in adolescents with ASD towards images of individual interests. En ligne : http://dx.doi.org/10.1007/s10803-018-3587-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=367