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Network Model of Decreased Context Utilization in Autism Spectrum Disorder / David Q. BEVERSDORF in Journal of Autism and Developmental Disorders, 37-6 (July 2007)
[article]
Titre : Network Model of Decreased Context Utilization in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : David Q. BEVERSDORF, Auteur ; Ashleigh HILLIER, Auteur ; Ananth NARAYANAN, Auteur ; John D. HUGHES, Auteur Année de publication : 2007 Article en page(s) : p.1040-1048 Langues : Anglais (eng) Mots-clés : Autism Neural-network False-memory Semantic Memory Hippocampus Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorders (ASD) demonstrate impaired utilization of context, which allows for superior performance on the “false memory” task. We report the application of a simplified parallel distributed processing model of context utilization to the false memory task. For individuals without ASD, experiments support a model wherein presentation of one word, e.g., ‘‘apple,’’ strongly activates the neighboring nodes of closely related words such as ‘‘fruit,’’ ‘‘tree,’’ whereas in ASD these neighboring nodes are relatively less activated. We demonstrate this model to be consistent with the superior performance on recognition testing on the false memory test, but not on free recall. This may have an anatomic basis in diminished hippocampal neuronal arborization and the abnormal minicolumnar pathology in ASD. En ligne : http://dx.doi.org/10.1007/s10803-006-0242-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=154
in Journal of Autism and Developmental Disorders > 37-6 (July 2007) . - p.1040-1048[article] Network Model of Decreased Context Utilization in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / David Q. BEVERSDORF, Auteur ; Ashleigh HILLIER, Auteur ; Ananth NARAYANAN, Auteur ; John D. HUGHES, Auteur . - 2007 . - p.1040-1048.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 37-6 (July 2007) . - p.1040-1048
Mots-clés : Autism Neural-network False-memory Semantic Memory Hippocampus Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorders (ASD) demonstrate impaired utilization of context, which allows for superior performance on the “false memory” task. We report the application of a simplified parallel distributed processing model of context utilization to the false memory task. For individuals without ASD, experiments support a model wherein presentation of one word, e.g., ‘‘apple,’’ strongly activates the neighboring nodes of closely related words such as ‘‘fruit,’’ ‘‘tree,’’ whereas in ASD these neighboring nodes are relatively less activated. We demonstrate this model to be consistent with the superior performance on recognition testing on the false memory test, but not on free recall. This may have an anatomic basis in diminished hippocampal neuronal arborization and the abnormal minicolumnar pathology in ASD. En ligne : http://dx.doi.org/10.1007/s10803-006-0242-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=154