認知科学
Online ISSN : 1881-5995
Print ISSN : 1341-7924
ISSN-L : 1341-7924
特集―視覚特徴の統合と選択―特集論文
特徴統合と視覚的注意の時間的特性
下村 満子横澤 一彦
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1995 年 2 巻 2 号 p. 2_21-2_32

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Temporal property of feature integration and visual attention has been examined through Rapid Serial Visual Presentation (RSVP) tasks. Subjects were asked to detect targets defined as a specific feature, e.g., color. Most errors were conjunction of target-defining feature in a target and to-be-reported feature in immediately preceding and following a target. This is referred to as a temporal illusory conjunction. The different patterns of temporal illusory conjunction yielded in different tasks and stimuli were explained by early- or late-selection theory of attention.
The temporal suppression of visual attention was found in dual-task RSVP. When the target was correctly detected, the probability of detection of the probe presented shortly after the target was reduced. This attentional blink shows that identifying an object occupies attention for at least several hundred milliseconds.

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© 1995 日本認知科学会
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