Change detection and difference detection of tone duration discrimination

Shuntaro Okazaki, Shin'ichiro Kanoh, Kana Takaura, Minoru Tsukada, Kotaro Oka

研究成果: Article

15 引用 (Scopus)

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An event-related potential called mismatch negativity is known to exhibit physiological evidence of sensory memory. Mismatch negativity is believed to represent complicated neuronal mechanisms in a variety of animals and in humans. We employed the auditory oddball paradigm varying sound durations and observed two types of duration mismatch negativity in anesthetized guinea pigs. One was a duration mismatch negativity whose increase in peak amplitude occurred immediately after onset of the stimulus difference in a decrement oddball paradigm. The other exhibited a peak amplitude increase closer to the offset of the longer stimulus in an increment oddball paradigm. These results demonstrated a mechanism to percept the difference of duration change and revealed the importance of the end of a stimulus for this perception.

元の言語English
ページ(範囲)395-399
ページ数5
ジャーナルNeuroReport
17
発行部数4
DOI
出版物ステータスPublished - 2006 6 21

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ASJC Scopus subject areas

  • Neuroscience(all)

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