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Visual Disengagement: Genetic Architecture and Relation to Autistic Traits in the General Population / Monica SIQUEIROS SANCHEZ in Journal of Autism and Developmental Disorders, 50-6 (June 2020)
[article]
Titre : Visual Disengagement: Genetic Architecture and Relation to Autistic Traits in the General Population Type de document : Texte imprimé et/ou numérique Auteurs : Monica SIQUEIROS SANCHEZ, Auteur ; Erik PETTERSSON, Auteur ; Daniel P KENNEDY, Auteur ; Sven BÖLTE, Auteur ; Paul LICHTENSTEIN, Auteur ; Brian M. D'ONOFRIO, Auteur ; Terje FALCK-YTTER, Auteur Article en page(s) : p.2188-2200 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Autistic traits Behavior genetics Gap-overlap task Visual disengagement Index. décimale : PER Périodiques Résumé : Visual disengagement has been hypothesized as an endophenotype for autism. In this study we used twin modelling to assess the role of genetics in basic measures of visual disengagement, and tested their putative association to autistic traits in the general population. We used the Gap Overlap task in a sample of 492 twins. Results showed that most of the covariance among eye movement latencies across conditions was shared and primarily genetic. Further, there were unique genetic contributions to the Gap condition, but not to the Overlap condition-i.e. the one theorized to capture visual disengagement. We found no phenotypic association between autistic traits and disengagement, thus not supporting the hypothesis of visual disengagement as an endophenotype for autistic traits. En ligne : http://dx.doi.org/10.1007/s10803-019-03974-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=425
in Journal of Autism and Developmental Disorders > 50-6 (June 2020) . - p.2188-2200[article] Visual Disengagement: Genetic Architecture and Relation to Autistic Traits in the General Population [Texte imprimé et/ou numérique] / Monica SIQUEIROS SANCHEZ, Auteur ; Erik PETTERSSON, Auteur ; Daniel P KENNEDY, Auteur ; Sven BÖLTE, Auteur ; Paul LICHTENSTEIN, Auteur ; Brian M. D'ONOFRIO, Auteur ; Terje FALCK-YTTER, Auteur . - p.2188-2200.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 50-6 (June 2020) . - p.2188-2200
Mots-clés : Autism spectrum disorders Autistic traits Behavior genetics Gap-overlap task Visual disengagement Index. décimale : PER Périodiques Résumé : Visual disengagement has been hypothesized as an endophenotype for autism. In this study we used twin modelling to assess the role of genetics in basic measures of visual disengagement, and tested their putative association to autistic traits in the general population. We used the Gap Overlap task in a sample of 492 twins. Results showed that most of the covariance among eye movement latencies across conditions was shared and primarily genetic. Further, there were unique genetic contributions to the Gap condition, but not to the Overlap condition-i.e. the one theorized to capture visual disengagement. We found no phenotypic association between autistic traits and disengagement, thus not supporting the hypothesis of visual disengagement as an endophenotype for autistic traits. En ligne : http://dx.doi.org/10.1007/s10803-019-03974-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=425 Reduced visual disengagement but intact phasic alerting in young children with autism / Johan Lundin KLEBERG in Autism Research, 10-3 (March 2017)
[article]
Titre : Reduced visual disengagement but intact phasic alerting in young children with autism Type de document : Texte imprimé et/ou numérique Auteurs : Johan Lundin KLEBERG, Auteur ; Emilia THORUP, Auteur ; Terje FALCK-YTTER, Auteur Article en page(s) : p.539-545 Langues : Anglais (eng) Mots-clés : autism attention gap effect visual disengagement alerting orienting arousal Index. décimale : PER Périodiques Résumé : Children with autism may have difficulties with visual disengagement—that is, inhibiting current fixations and orienting to new stimuli in the periphery. These difficulties may limit these children's ability to flexibly monitor the environment, regulate their internal states, and interact with others. In typical development, visual disengagement is influenced by a phasic alerting network that increases the processing speed of the visual system after salient events. The role of the phasic alerting effect in the putative atypical disengagement performance in autism spectrum disorder (ASD) is not known. Here, we compared visual disengagement in six-year-old children with autism (N?=?18) and typically developing children (N?=?17) matched for age and nonverbal IQ. We manipulated phasic alerting during a visual disengagement task by adding spatially nonpredictive sounds shortly before the onset of the visual peripheral targets. Children with ASD showed evidence of delayed disengagement compared to the control group. Sounds facilitated visual disengagement similarly in both groups, suggesting typical modulation by phasic alerting in ASD in the context of this task. These results support the view that atypical visual disengagement in ASD is related to other factors than atypicalities in the alerting network. En ligne : http://dx.doi.org/10.1002/aur.1675 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304
in Autism Research > 10-3 (March 2017) . - p.539-545[article] Reduced visual disengagement but intact phasic alerting in young children with autism [Texte imprimé et/ou numérique] / Johan Lundin KLEBERG, Auteur ; Emilia THORUP, Auteur ; Terje FALCK-YTTER, Auteur . - p.539-545.
Langues : Anglais (eng)
in Autism Research > 10-3 (March 2017) . - p.539-545
Mots-clés : autism attention gap effect visual disengagement alerting orienting arousal Index. décimale : PER Périodiques Résumé : Children with autism may have difficulties with visual disengagement—that is, inhibiting current fixations and orienting to new stimuli in the periphery. These difficulties may limit these children's ability to flexibly monitor the environment, regulate their internal states, and interact with others. In typical development, visual disengagement is influenced by a phasic alerting network that increases the processing speed of the visual system after salient events. The role of the phasic alerting effect in the putative atypical disengagement performance in autism spectrum disorder (ASD) is not known. Here, we compared visual disengagement in six-year-old children with autism (N?=?18) and typically developing children (N?=?17) matched for age and nonverbal IQ. We manipulated phasic alerting during a visual disengagement task by adding spatially nonpredictive sounds shortly before the onset of the visual peripheral targets. Children with ASD showed evidence of delayed disengagement compared to the control group. Sounds facilitated visual disengagement similarly in both groups, suggesting typical modulation by phasic alerting in ASD in the context of this task. These results support the view that atypical visual disengagement in ASD is related to other factors than atypicalities in the alerting network. En ligne : http://dx.doi.org/10.1002/aur.1675 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=304