Network model of decreased context utilization in autism spectrum disorder.
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 individ...
| Publicado en: | Journal of Autism & Developmental Disorders Vol. 37; no. 6; pp. 1040 - 1049 |
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| Autores principales: | , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Jul2007
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105992201&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105992201 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01623257 AUT jtl: Journal of Autism & Developmental Disorders issn: 01623257 maglogo: N pubinfo: dt: Jul2007 vid: 37 iid: 6 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105992201 105992201 2009632354 10.1007/s10803-006-0242-7 NLM17191098 105992201 ppf: 1040 ppct: 9 formats: fmt: @attributes: type: P tig: atl: Network model of decreased context utilization in autism spectrum disorder. aug: au: Beversdorf D Narayanan A Hillier A Hughes J affil: Dept of Neurology, Ohio State University Medical Center, Means Hall 469, 1654 Upham Dr, Columbus, OH 43210; david.beversdorf@osumc.edu sug: subj: Autism Spectrum Disorder Physiopathology Language Disorders Physiopathology Learning Memory Neural Networks (Computer) Organizations Attention Auditory Perception Physiology Autism Spectrum Disorder Diagnosis Autism Spectrum Disorder Psychosocial Factors Child Concept Formation Funding Source Hippocampus Physiopathology Language Disorders Diagnosis Language Disorders Psychosocial Factors Semantics Child: 6-12 years ab: 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. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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