Change-driven cortical activation in multisensory environments: An MEG study

Emi Tanaka*, Tetsuo Kida, Koji Inui, Ryusuke Kakigi

*この研究の対応する著者

研究成果: Article査読

32 被引用数 (Scopus)

抄録

The quick detection of dynamic changes in multisensory environments is essential to survive dangerous events and orient attention to informative events. Previous studies have identified multimodal cortical areas activated by changes of visual, auditory, and tactile stimuli. In the present study, we used magnetoencephalography (MEG) to examine time-varying cortical processes responsive to unexpected unimodal changes during continuous multisensory stimulation. The results showed that there were change-driven cortical responses in multimodal areas, such as the temporo-parietal junction and middle and inferior frontal gyri, regardless of the sensory modalities where the change occurred. These multimodal activations accompanied unimodal activations, both of which in general had some peaks within 300 ms after the changes. Thus, neural processes responsive to unimodal changes in the multisensory environment are distributed at different timing in these cortical areas.

本文言語English
ページ(範囲)464-474
ページ数11
ジャーナルNeuroImage
48
2
DOI
出版ステータスPublished - 2009 11月 1

ASJC Scopus subject areas

  • 認知神経科学
  • 神経学

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