Visual mismatch response evoked by a perceptually indistinguishable oddball

Takayoshi Kogai, Atsushi Aoyama, Kaoru Amano, Tsunehiro Takeda

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Mismatch field (MMF) is an early magnetoencephalographic response evoked by deviant stimuli within a sequence of standard stimuli. Although auditory MMF is reported to be an automatic response, the automaticity of visual MMF has not been clearly demonstrated, partly because of the difficulty in designing an ignore condition. Our modified oddball paradigm had a masking stimulus inserted between briefly presented standard and deviant stimuli (vertical gratings with different spatial frequencies). Perceptual discrimination between masked standard and deviant stimuli was difficult, but the early magnetoencephalographic response for the deviant was significantly larger than that for the standard, when the former had a higher spatial frequency than the latter. Our findings strongly support the hypothesis that visual MMF is evoked automatically.

本文言語English
ページ(範囲)535-538
ページ数4
ジャーナルNeuroReport
22
11
DOI
出版ステータスPublished - 2011 8月 3

ASJC Scopus subject areas

  • 神経科学(全般)

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