Inter-trial effect in luminance processing revealed by magnetoencephalography

研究成果: Article査読

抄録

In this study, we examined whether luminance processing in the human visual system would exhibit any history effect (i.e., inter-trial modulation) in psychophysical and magnetoencephalographic experiments. A disk was presented against a black background at various luminance levels in a randomized order. During the MEG recording, participants were instructed to rate the brightness of the disk (magnitude estimation) and to report it aloud during inter-stimulus interval. The MEG results showed that the neuromagnetic activation around 200-220 ms after the stimulus onset in the left occipito-temporal regions at a given trial was weaker when the disk luminance in the immediately prior trial was higher. An inverse inter-trial effect was also observed in the psychophysical experiment. These findings suggest that the neuromagnetic activity reflects the inter-trial modulation of luminance processing that correlates with the subjective perception of brightness.

本文言語English
ページ(範囲)1559-1565
ページ数7
ジャーナルUniversitas Psychologica
12
5
DOI
出版ステータスPublished - 2013
外部発表はい

ASJC Scopus subject areas

  • Psychology(all)

フィンガープリント 「Inter-trial effect in luminance processing revealed by magnetoencephalography」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル