Competition between endogenous and exogenous orienting of visual attention

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Abstract

The relation between reflexive and voluntary orienting of visual attention was investigated with 4 experiments: a simple detection task, a localization task, a saccade toward the target task, and a target identification task in which discrimination difficulty was manipulated. Endogenous and exogenous orienting cues were presented in each trial and their validity was manipulated orthogonally to examine whether attention mechanisms are mediated by separate systems and whether they have additive and independent effects on visual detection and discrimination. The results showed that each orienting mechanism developed its typical and independent effect in every case except for the difficult identification task. A theoretical framework for understanding the relationship between endogenous and exogenous orienting of attention is proposed, tested, and confirmed.

Original languageEnglish
Pages (from-to)207-221
Number of pages15
JournalJournal of Experimental Psychology: General
Volume134
Issue number2
DOIs
StatePublished - 1 May 2005

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