Fast Color Grouping and Slow Color Inhibition: Evidence for Distinct Temporal Windows for Separate Processes in Preview Search

Jason J. Braithwaite, Glyn W. Humphreys, Johan Hulleman, Derrick G. Watson

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    Abstract

    The authors report 4 experiments that examined color grouping and negative carryover effects in preview search via a probe detection task (J. J. Braithwaite, G. W. Humphreys, & J. Hodsoll, 2003). In Experiment 1, there was evidence of a negative color carryover from the preview to new items, using both search and probe detection measures. There was also a negative bias against probes on old items that carried the majority color in the preview. With a short preview duration (150 ms) carryover effects to new items were greatly reduced, but probe detection remained biased against the majority color in the old items. Experiments 2 and 4 showed that the color bias effects on old items could be reduced when these items had to be prioritized relative to being ignored. Experiment 3 tested and rejected the idea that variations in the probability of whether minority or majority colors were probed were crucial. These results show that the time course of color carryover effects can be separated from effects of early color grouping in the preview display: Color grouping is fast, and inhibitory color carryover effects are slow. © 2007 American Psychological Association.
    Original languageEnglish
    Pages (from-to)503-517
    Number of pages14
    JournalJournal of Experimental Psychology: Human Perception and Performance
    Volume33
    Issue number3
    DOIs
    Publication statusPublished - Jun 2007

    Keywords

    • attentional guidance
    • color grouping
    • inhibition
    • time effects
    • visual selective attention

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