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ERIC Number: EJ1050838
Record Type: Journal
Publication Date: 2015-Feb-1
Pages: 12
Abstractor: As Provided
Reference Count: 45
ISBN: N/A
ISSN: ISSN-0162-3257
Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD
Westerfield, Marissa A.; Zinni, Marla; Vo, Khang; Townsend, Jeanne
Journal of Autism and Developmental Disorders, v45 n2 p600-611 Feb 2015
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-dependent in high-functioning ASD. The implications of these findings for higher-level behaviors such as prediction and planning are discussed.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A