Temporal dissociation between category-based and item-based processes in rejecting distractors

Atsunori Ariga*, Katsumi Watanabe

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Presenting a target-like distractor in an RSVP task deteriorates the detection of a trailing target, because the visual system has difficulties in rejecting the erroneously accepted distractor. We investigated whether the rejection process is influenced by observers' knowledge regarding possible distractors. Observers identified a letter (target) embedded in a stream of line patterns, rejecting a preceding distractor (digit). We informed the observers about either the category of distractors ("digit") or the identity of the distractor (e.g., "5"). The distractors with certain distractor-target lags increased identification errors, indicating that the distractor rejection process temporarily interfered with the target identification. When the observers knew the distractor identity, the rejection process started later than when they knew only the distractor category. These results suggest that the rejection process may operate at either the category or the individual-item level; however, the setting of the rejection level is not under the observers' control.

本文言語English
ページ(範囲)54-59
ページ数6
ジャーナルPsychological Research
73
1
DOI
出版ステータスPublished - 2009 1
外部発表はい

ASJC Scopus subject areas

  • 実験心理学および認知心理学
  • 発達心理学および教育心理学
  • 人文科学(その他)

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