Event-related brain potentials in adults with mental retardation in a two-and three-stimulus auditory oddball paradigms

DOI
  • TAKEGATA Rika
    The Research Institute for the Education of Exceptional Children, Tokyo Gakugei University
  • MOROTOMI Takashi
    Faculty of Education, Hokkaido University

Bibliographic Information

Other Title
  • 2刺激および3刺激オッドボールパラダイムにおける精神遅滞者の事象関連電位

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Description

Event-related brain potentials in a passive two-or three-stimulus auditory oddball were recorded from seven adults with moderate or severe mental retardation, and were compared with data from normal subjects. In Experiment 1, subjects were presented with a random sequence of 1000Hz (p=.8) and 2000Hz (p=.2) tones. Two of the seven retarded subjects and all of the four normal subjects showed N2-P3 to the rare tone. Five retarded subjects showed only negative waves. In Experiment 2, the stimulus sequence comprised a frequent tones (1000Hz : p=.7), rare tones (2000Hz : p=.15) and novel sounds (noise : p=.15). Five of the seven retarded and all of the six normal subjects showed positive waves to novel stimuli. It is suggested that novel stimuli may elicit P3 (P3a) even in severely retarded people.

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Details 詳細情報について

  • CRID
    1390001205458385920
  • NII Article ID
    130004624507
  • DOI
    10.5674/jjppp1983.16.25
  • ISSN
    02892405
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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