Document Detail


Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD.
MedLine Citation:
PMID:  24488156     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We recorded visual event-related brain potentials from 32 adult male participants (16 high-functioning participants diagnosed with autism spectrum disorder (ASD) and 16 control participants, ranging in age from 18 to 53 years) during a three-stimulus oddball paradigm. Target and non-target stimulus probability was varied across three probability conditions, whereas the probability of a third non-target stimulus was held constant in all conditions. P3 amplitude to target stimuli was more sensitive to probability in ASD than in typically developing participants, whereas P3 amplitude to non-target stimuli was less responsive to probability in ASD participants. This suggests that neural responses to changes in event probability are attention-dependant in high-functioning ASD. The implications of these findings for higher-level behaviors such as prediction and planning are discussed.
Authors:
Marissa A Westerfield; Marla Zinni; Khang Vo; Jeanne Townsend
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-2-2
Journal Detail:
Title:  Journal of autism and developmental disorders     Volume:  -     ISSN:  1573-3432     ISO Abbreviation:  J Autism Dev Disord     Publication Date:  2014 Feb 
Date Detail:
Created Date:  2014-2-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7904301     Medline TA:  J Autism Dev Disord     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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