Do isoluminant color changes capture attention?

Full Abstract

Four experiments are reported in which the effects of peripheral cues on visual orienting were investigated. In the luminance condition, the cues consisted of a peripheral change in stimulus luminance. In the isoluminance condition, the cues consisted of an isoluminant color change, using the transient tritanopic technique. In Experiments 1 and 2, it was found that peripheral luminance cues captured attention, whereas peripheral isoluminance cues did not. In Experiments 3 and 4, the participants detected a peripheral target that was also isoluminant with the background. Under these conditions, it was found that both luminance and isoluminance cues captured attention. The results are discussed in terms of the roles of the dorsal and ventral streams in visual orienting, and it is concluded that our findings provide partial support for the contingent involuntary orienting hypothesis of C. Folk and colleagues.

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Author information

Author/s: Lambert, Anthony (A); Wells, Ian (I); Kean, Matthew (M);

Affiliation: Research Centre for Congitive Neuroscience, Department of Psychology, University of Auckland, Auckland, New Zealand. a.lambert(-atsign-)auckland.ac.nz

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Perception & psychophysics (Percept Psychophys), published in United States. (Language: eng)

Reference: 2003-May; vol 65 (issue 4) : pp 495-507

Dates: Created 2003/06/18; Completed 2003/07/28; Revised 2006/11/15;

PMID: 12812274, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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