Estimation of Temporary Change of Brain Activities in Auditory Oddball Paradigm

DOI Web Site Web Site 21 References Open Access
  • Fukami Tadanori
    Deptartment of Bio-System Engineering, Faculty of Engineering, Yamagata University
  • Koyanagi Yusuke
    Deptartment of Bio-System Engineering, Faculty of Engineering, Yamagata University
  • Tanno Yukinori
    Deptartment of Bio-System Engineering, Faculty of Engineering, Yamagata University
  • Shimada Takamasa
    Department of Information Environment, Integration & Design, Tokyo Denki University
  • Akatsuka Takao
    Deptartment of Bio-System Engineering, Faculty of Engineering, Yamagata University
  • Saito Yoichi
    The Institute for EEG Analysis

Search this article

Description

In this research, we estimated temporary change of brain activities in auditory oddball paradigm by moving an analysis time window. An advantage of this method is that it can acquire rough changes of activated areas even with data having low time resolution. Eight normal subjects participated in the study, which consisted of a random series of 30 target and 70 nontarget stimuli. We investigated the activated area in three kinds of analysis time sections, from stimulus onset to 5 seconds after the stimulus (time section A), from 2 to 7 seconds after (B) and from 4 to 9 seconds after (C). In time section A, representative activated areas were regions including superior temporal gyrus centered around inferior frontal gyrus, left precentral gyrus corresponding to Broadmann area 6 (BA 6), right fusiform gyrus corresponding to BA 20, bilaterally medial frontal gyrus and right inferior temporal gyrus were activated. In B, we could see the activations in bilatelally cerebellum, inferior frontal gyrus, and region including left motor area. In C, bilatelally postcentral gyrus, left cingulate gyrus , right cerebellum and right insula were activated. Most activations were consistent with previous studies.

Journal

References(21)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top