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Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD.

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...

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Published in:Journal of Autism & Developmental Disorders Vol. 45; no. 2; pp. 600 - 612
Main Authors: Westerfield, Marissa, Zinni, Marla, Vo, Khang, Townsend, Jeanne
Format: pictorial research tables/charts tracings Journal Article
Published: Springer Nature Feb2015
Online Access:View this record in EBSCOhost
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      dt: Feb2015
      vid: 45
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      pub: Springer Nature
      place: New York, New York
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        atl: Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD.
      aug:
        au:
          Westerfield, Marissa
          Zinni, Marla
          Vo, Khang
          Townsend, Jeanne
        affil: Institute for Neural Computation, University of California, San Diego, 9500 Gilman Dr. MC-0959 La Jolla 92093-0959 USA
      sug:
        subj:
          Autism Spectrum Disorder Physiopathology
          Evoked Potentials
          Sensory Stimulation Evaluation
          Mental Processes Evaluation
          Human
          Male
          Adolescence
          Young Adult
          Adult
          Middle Age
          Paradigms
          Interview Guides
          Interviews
          Scales
          Questionnaires
          Experimental Studies
          Electroencephalography
          Eye Movement Measurements
          Data Analysis Software
          Probability
          Adolescent: 13-18 years
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Male
      ab: 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.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        tracings
        Journal Article
      ougenre: Article
    language: English
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