Selection-for-action in visual search

A Hannus*, FW Cornelissen, O Lindemann, H Bekkering

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    56 Citations (Scopus)

    Abstract

    Grasping an object rather than pointing to it enhances processing of its orientation but not its color. Apparently, visual discrimination is selectively enhanced for a behaviorally relevant feature. In two experiments we investigated the limitations and targets of this bias. Specifically, in Experiment I we were interested to find out whether the effect is capacity demanding, therefore we manipulated the set-size of the display. The results indicated a clear cognitive processing capacity requirement, i.e. the magnitude of the effect decreased for a larger set size. Consequently, in Experiment 2, we investigated if the enhancement effect occurs only at the level of behaviorally relevant feature or at a level common to different features. Therefore we manipulated the discriminability of the behaviorally neutral feature (color). Again. results showed that this manipulation influenced the action enhancement of the behaviorally relevant feature. Particularly, the effect of the color manipulation on the action enhancement suggests that the action effect is more likely to bias the competition between different visual features rather than to enhance the processing of the relevant feature. We offer a theoretical account that integrates the action-intention effect within the biased competition model of visual selective attention. (C) 2004 Elsevier B.V. All rights reserved.

    Original languageEnglish
    Pages (from-to)171-191
    Number of pages21
    JournalActa Psychologica
    Volume118
    Issue number1-2
    DOIs
    Publication statusPublished - 2005
    EventSymposium on Spatial Information Processing - , Netherlands
    Duration: 1-Dec-2002 → …

    Keywords

    • visual attention
    • selection-for-action
    • biased competition
    • conjunction search
    • WORKING-MEMORY
    • NEUROPSYCHOLOGICAL EVIDENCE
    • PSYCHOPHYSICS TOOLBOX
    • BIASED COMPETITION
    • PREFRONTAL CORTEX
    • NEURAL MECHANISMS
    • TARGET SELECTION
    • ATTENTION
    • MACAQUE
    • MONKEY

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