Altered functional connectivity of the amygdaloid input nuclei in adolescents and young adults with autism spectrum disorder: a resting state fMRI study / Annika RAUSCH in Molecular Autism, 7 (2016)  

Public ISBD [article]  inMolecular Autism > 7 (2016) . - 13p. Titre : Altered functional connectivity of the amygdaloid input nuclei in adolescents and young adults with autism spectrum disorder: a resting state fMRI study Type de document : texte imprimé Auteurs : Annika RAUSCH, Auteur ; Wenxin ZHANG, Auteur ; Koen V. HAAK, Auteur ; Maarten MENNES, Auteur ; Erno J. HERMANS, Auteur ; Erik VAN OORT, Auteur ; Guido VAN WINGEN, Auteur ; Christian F. BECKMANN, Auteur ; Jan K. BUITELAAR, Auteur ; Wouter B. GROEN, Auteur Article en page(s) : 13p. Langues : Anglais (eng) Mots-clés : Adolescent  Afferent Pathways/pathology/physiopathology  Amygdala/pathology/physiopathology  Autism Spectrum Disorder/pathology/physiopathology  Basolateral Nuclear Complex/pathology/physiopathology  Central Amygdaloid Nucleus/pathology/physiopathology  Connectome  Efferent Pathways/pathology/physiopathology  Emotions  Female  Humans  Image Processing, Computer-Assisted  Magnetic Resonance Imaging  Male  Models, Neurological  Models, Psychological  Neocortex/pathology/physiopathology  Nerve Net/pathology/physiopathology  Signal-To-Noise Ratio  Social Perception  Surveys and Questionnaires  Temporal Lobe/pathology/physiopathology  Young Adult  Amygdala  Autism spectrum disorder  Centromedial  Connectivity  Input-output  Laterobasal  Nuclei  Superficial Index. décimale : PER Périodiques Résumé : BACKGROUND: Amygdala dysfunction is hypothesized to underlie the social deficits observed in autism spectrum disorders (ASD). However, the neurobiological basis of this hypothesis is underspecified because it is unknown whether ASD relates to abnormalities of the amygdaloid input or output nuclei. Here, we investigated the functional connectivity of the amygdaloid social-perceptual input nuclei and emotion-regulation output nuclei in ASD versus controls. METHODS: We collected resting state functional magnetic resonance imaging (fMRI) data, tailored to provide optimal sensitivity in the amygdala as well as the neocortex, in 20 adolescents and young adults with ASD and 25 matched controls. We performed a regular correlation analysis between the entire amygdala (EA) and the whole brain and used a partial correlation analysis to investigate whole-brain functional connectivity uniquely related to each of the amygdaloid subregions. RESULTS: Between-group comparison of regular EA correlations showed significantly reduced connectivity in visuospatial and superior parietal areas in ASD compared to controls. Partial correlation analysis revealed that this effect was driven by the left superficial and right laterobasal input subregions, but not the centromedial output nuclei. CONCLUSIONS: These results indicate reduced connectivity of specifically the amygdaloid sensory input channels in ASD, suggesting that abnormal amygdalo-cortical connectivity can be traced down to the socio-perceptual pathways. En ligne : http://dx.doi.org/10.1186/s13229-015-0060-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329 [article] Altered functional connectivity of the amygdaloid input nuclei in adolescents and young adults with autism spectrum disorder: a resting state fMRI study [texte imprimé] / Annika RAUSCH, Auteur ; Wenxin ZHANG, Auteur ; Koen V. HAAK, Auteur ; Maarten MENNES, Auteur ; Erno J. HERMANS, Auteur ; Erik VAN OORT, Auteur ; Guido VAN WINGEN, Auteur ; Christian F. BECKMANN, Auteur ; Jan K. BUITELAAR, Auteur ; Wouter B. GROEN, Auteur . - 13p. Langues : Anglais (eng) in Molecular Autism > 7 (2016) . - 13p. Mots-clés : Adolescent  Afferent Pathways/pathology/physiopathology  Amygdala/pathology/physiopathology  Autism Spectrum Disorder/pathology/physiopathology  Basolateral Nuclear Complex/pathology/physiopathology  Central Amygdaloid Nucleus/pathology/physiopathology  Connectome  Efferent Pathways/pathology/physiopathology  Emotions  Female  Humans  Image Processing, Computer-Assisted  Magnetic Resonance Imaging  Male  Models, Neurological  Models, Psychological  Neocortex/pathology/physiopathology  Nerve Net/pathology/physiopathology  Signal-To-Noise Ratio  Social Perception  Surveys and Questionnaires  Temporal Lobe/pathology/physiopathology  Young Adult  Amygdala  Autism spectrum disorder  Centromedial  Connectivity  Input-output  Laterobasal  Nuclei  Superficial Index. décimale : PER Périodiques Résumé : BACKGROUND: Amygdala dysfunction is hypothesized to underlie the social deficits observed in autism spectrum disorders (ASD). However, the neurobiological basis of this hypothesis is underspecified because it is unknown whether ASD relates to abnormalities of the amygdaloid input or output nuclei. Here, we investigated the functional connectivity of the amygdaloid social-perceptual input nuclei and emotion-regulation output nuclei in ASD versus controls. METHODS: We collected resting state functional magnetic resonance imaging (fMRI) data, tailored to provide optimal sensitivity in the amygdala as well as the neocortex, in 20 adolescents and young adults with ASD and 25 matched controls. We performed a regular correlation analysis between the entire amygdala (EA) and the whole brain and used a partial correlation analysis to investigate whole-brain functional connectivity uniquely related to each of the amygdaloid subregions. RESULTS: Between-group comparison of regular EA correlations showed significantly reduced connectivity in visuospatial and superior parietal areas in ASD compared to controls. Partial correlation analysis revealed that this effect was driven by the left superficial and right laterobasal input subregions, but not the centromedial output nuclei. CONCLUSIONS: These results indicate reduced connectivity of specifically the amygdaloid sensory input channels in ASD, suggesting that abnormal amygdalo-cortical connectivity can be traced down to the socio-perceptual pathways. En ligne : http://dx.doi.org/10.1186/s13229-015-0060-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329

Cognitive and Neural Correlates of Language in Autism / Wouter B. GROEN

Public ISBD in Autism Spectrum Disorders / David G. AMARAL Titre : Cognitive and Neural Correlates of Language in Autism Type de document : texte imprimé Auteurs : Wouter B. GROEN, Auteur ; Jan K. BUITELAAR, Auteur Année de publication : 2011 Importance : p.186-199 Langues : Anglais (eng) Index. décimale : AUT-B AUT-B - L'Autisme - Ouvrages généraux et scientifiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=139 in Autism Spectrum Disorders / David G. AMARAL Cognitive and Neural Correlates of Language in Autism [texte imprimé] / Wouter B. GROEN, Auteur ; Jan K. BUITELAAR, Auteur . - 2011 . - p.186-199. Langues : Anglais (eng) Index. décimale : AUT-B AUT-B - L'Autisme - Ouvrages généraux et scientifiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=139

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Connectivity-Based Parcellation of the Amygdala Predicts Social Skills in Adolescents with Autism Spectrum Disorder / Annika RAUSCH in Journal of Autism and Developmental Disorders, 48-2 (February 2018)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 48-2 (February 2018) . - p.572-582 Titre : Connectivity-Based Parcellation of the Amygdala Predicts Social Skills in Adolescents with Autism Spectrum Disorder Type de document : texte imprimé Auteurs : Annika RAUSCH, Auteur ; Wenxin ZHANG, Auteur ; Christian F. BECKMANN, Auteur ; Jan K. BUITELAAR, Auteur ; Wouter B. GROEN, Auteur ; Koen V. HAAK, Auteur Article en page(s) : p.572-582 Langues : Anglais (eng) Mots-clés : Amygdala  Autism spectrum disorder  Functional connectivity  Parcellation  Prefrontal Index. décimale : PER Périodiques Résumé : Amygdala dysfunction plays a role in the social impairments in autism spectrum disorders (ASD), but it is unclear which of its subregions are abnormal in ASD. This study compared the volume and functional connectivity (FC) strength of three FC-defined amygdala subregions between ASD and controls, and assessed their relation to social skills in ASD. A subregion associated with the social perception network was enlarged in ASD (F1 = 7.842, p = .008) and its volume correlated significantly with symptom severity (social skills: r = .548, p = .009). Posthoc analysis revealed that the enlargement was driven by the vmPFC amygdala network. These findings refine our understanding of abnormal amygdala connectivity in ASD and may inform future strategies for therapeutic interventions targeting the amygdalofrontal pathway. En ligne : https://doi.org/10.1007/s10803-017-3370-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=338 [article] Connectivity-Based Parcellation of the Amygdala Predicts Social Skills in Adolescents with Autism Spectrum Disorder [texte imprimé] / Annika RAUSCH, Auteur ; Wenxin ZHANG, Auteur ; Christian F. BECKMANN, Auteur ; Jan K. BUITELAAR, Auteur ; Wouter B. GROEN, Auteur ; Koen V. HAAK, Auteur . - p.572-582. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 48-2 (February 2018) . - p.572-582 Mots-clés : Amygdala  Autism spectrum disorder  Functional connectivity  Parcellation  Prefrontal Index. décimale : PER Périodiques Résumé : Amygdala dysfunction plays a role in the social impairments in autism spectrum disorders (ASD), but it is unclear which of its subregions are abnormal in ASD. This study compared the volume and functional connectivity (FC) strength of three FC-defined amygdala subregions between ASD and controls, and assessed their relation to social skills in ASD. A subregion associated with the social perception network was enlarged in ASD (F1 = 7.842, p = .008) and its volume correlated significantly with symptom severity (social skills: r = .548, p = .009). Posthoc analysis revealed that the enlargement was driven by the vmPFC amygdala network. These findings refine our understanding of abnormal amygdala connectivity in ASD and may inform future strategies for therapeutic interventions targeting the amygdalofrontal pathway. En ligne : https://doi.org/10.1007/s10803-017-3370-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=338

Gender and Age Differences in the Core Triad of Impairments in Autism Spectrum Disorders: A Systematic Review and Meta-analysis / Patricia J.M. WIJNGAARDEN-CREMERS in Journal of Autism and Developmental Disorders, 44-3 (March 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-3 (March 2014) . - p.627-635 Titre : Gender and Age Differences in the Core Triad of Impairments in Autism Spectrum Disorders: A Systematic Review and Meta-analysis Type de document : texte imprimé Auteurs : Patricia J.M. WIJNGAARDEN-CREMERS, Auteur ; Evelien EETEN, Auteur ; Wouter B. GROEN, Auteur ; Patricia A. DEURZEN, Auteur ; Iris J. OOSTERLING, Auteur ; Rutger Jan VAN DER GAAG, Auteur Article en page(s) : p.627-635 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Gender  Age Index. décimale : PER Périodiques Résumé : Autism is an extensively studied disorder in which the gender disparity in prevalence has received much attention. In contrast, only a few studies examine gender differences in symptomatology. This systematic review and meta-analysis of 22 peer reviewed original publications examines gender differences in the core triad of impairments in autism. Gender differences were transformed and concatenated using standardized mean differences, and analyses were stratified in five age categories (toddlerhood, preschool children, childhood, adolescence, young adulthood). Boys showed more repetitive and stereotyped behavior as from the age of six, but not below the age of six. Males and females did not differ in the domain of social behavior and communication. There is an underrepresentation of females with ASD an average to high intelligence. Females could present another autistic phenotype than males. As ASD is now defined according to the male phenotype this could imply that there is an ascertainment bias. More research is needed into the female phenotype of ASD with development of appropriate instruments to detect and ascertain them. En ligne : http://dx.doi.org/10.1007/s10803-013-1913-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=225 [article] Gender and Age Differences in the Core Triad of Impairments in Autism Spectrum Disorders: A Systematic Review and Meta-analysis [texte imprimé] / Patricia J.M. WIJNGAARDEN-CREMERS, Auteur ; Evelien EETEN, Auteur ; Wouter B. GROEN, Auteur ; Patricia A. DEURZEN, Auteur ; Iris J. OOSTERLING, Auteur ; Rutger Jan VAN DER GAAG, Auteur . - p.627-635. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-3 (March 2014) . - p.627-635 Mots-clés : Autism spectrum disorder  Gender  Age Index. décimale : PER Périodiques Résumé : Autism is an extensively studied disorder in which the gender disparity in prevalence has received much attention. In contrast, only a few studies examine gender differences in symptomatology. This systematic review and meta-analysis of 22 peer reviewed original publications examines gender differences in the core triad of impairments in autism. Gender differences were transformed and concatenated using standardized mean differences, and analyses were stratified in five age categories (toddlerhood, preschool children, childhood, adolescence, young adulthood). Boys showed more repetitive and stereotyped behavior as from the age of six, but not below the age of six. Males and females did not differ in the domain of social behavior and communication. There is an underrepresentation of females with ASD an average to high intelligence. Females could present another autistic phenotype than males. As ASD is now defined according to the male phenotype this could imply that there is an ascertainment bias. More research is needed into the female phenotype of ASD with development of appropriate instruments to detect and ascertain them. En ligne : http://dx.doi.org/10.1007/s10803-013-1913-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=225

Gender in Voice Perception in Autism / Wouter B. GROEN in Journal of Autism and Developmental Disorders, 38-10 (November 2008)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 38-10 (November 2008) . - p.1819-1826 Titre : Gender in Voice Perception in Autism Type de document : texte imprimé Auteurs : Wouter B. GROEN, Auteur ; Sophie H.N. SWINKELS, Auteur ; Rutger Jan VAN DER GAAG, Auteur ; Jan K. BUITELAAR, Auteur ; Linda VAN ORSOUW, Auteur ; Marcel P. ZWIERS, Auteur Année de publication : 2008 Article en page(s) : p.1819-1826 Langues : Anglais (eng) Mots-clés : Autism Gender Voice Perception Auditory Index. décimale : PER Périodiques Résumé : Deficits in the perception of social stimuli may contribute to the characteristic impairments in social interaction in high functioning autism (HFA). Although the cortical processing of voice is abnormal in HFA, it is unclear whether this gives rise to impairments in the perception of voice gender. About 20 children with HFA and 20 matched controls were presented with voice fragments that were parametrically morphed in gender. No differences were found in the perception of gender between the two groups of participants, but response times differed significantly. The results suggest that the perception of voice gender is not impaired in HFA, which is consistent with behavioral findings of an unimpaired voice-based identification of age and identity by individuals with autism. The differences in response times suggest that individuals with HFA use different perceptual approaches from those used by typically developing individuals. En ligne : http://dx.doi.org/10.1007/s10803-008-0572-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=640 [article] Gender in Voice Perception in Autism [texte imprimé] / Wouter B. GROEN, Auteur ; Sophie H.N. SWINKELS, Auteur ; Rutger Jan VAN DER GAAG, Auteur ; Jan K. BUITELAAR, Auteur ; Linda VAN ORSOUW, Auteur ; Marcel P. ZWIERS, Auteur . - 2008 . - p.1819-1826. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 38-10 (November 2008) . - p.1819-1826 Mots-clés : Autism Gender Voice Perception Auditory Index. décimale : PER Périodiques Résumé : Deficits in the perception of social stimuli may contribute to the characteristic impairments in social interaction in high functioning autism (HFA). Although the cortical processing of voice is abnormal in HFA, it is unclear whether this gives rise to impairments in the perception of voice gender. About 20 children with HFA and 20 matched controls were presented with voice fragments that were parametrically morphed in gender. No differences were found in the perception of gender between the two groups of participants, but response times differed significantly. The results suggest that the perception of voice gender is not impaired in HFA, which is consistent with behavioral findings of an unimpaired voice-based identification of age and identity by individuals with autism. The differences in response times suggest that individuals with HFA use different perceptual approaches from those used by typically developing individuals. En ligne : http://dx.doi.org/10.1007/s10803-008-0572-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=640

Intact Spectral but Abnormal Temporal Processing of Auditory Stimuli in Autism / Wouter B. GROEN in Journal of Autism and Developmental Disorders, 39-5 (May 2009)  

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Visual Scanning in Very Young Children with Autism and Their Unaffected Parents / Wouter B. GROEN in Autism Research and Treatment, (January 2012)  

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