August 2014
Volume 14, Issue 10
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2014
A size singleton matching the target-distractor size relation cannot capture attention when it appears outside of attentional window
Author Affiliations
  • Feng Du
    Key Laboratory of Behavioral Science,Institute of Psychology, Chinese Academy of Sciences
  • Yue Yin
    Key Laboratory of Behavioral Science,Institute of Psychology, Chinese Academy of Sciences
  • Yue Qi
    Key Laboratory of Behavioral Science,Institute of Psychology, Chinese Academy of Sciences
  • Kan Zhang
    Key Laboratory of Behavioral Science,Institute of Psychology, Chinese Academy of Sciences
Journal of Vision August 2014, Vol.14, 639. doi:10.1167/14.10.639
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      Feng Du, Yue Yin, Yue Qi, Kan Zhang; A size singleton matching the target-distractor size relation cannot capture attention when it appears outside of attentional window. Journal of Vision 2014;14(10):639. doi: 10.1167/14.10.639.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Recent studies have shown that an irrelevant size-singleton cue that matches target-distractor size relation captures attention, resulting in faster RT and a large N2pc to the target at that cued location. By using the spatial blink paradigm, the present study examined whether a peripheral size-singleton distractor that matches the target-distractor size relation can capture visual attention and disrupt central target identification. Three experiments consistently showed that a size singleton that matches a target-distractor size relation cannot capture attention when it appears outside of the attentional window. However, the same size singleton still produces a cuing effect. In addition, a color singleton that matches target color, instead of a size singleton that matches a target-distractor size relation, captures attention when it is outside of the attentional window. In conclusion, a size-relation-matched distractor is much weaker than a color-matched distractor in capturing visual attention and cannot capture attention when the distractor appears outside of the attentional window. Moreover, these results also suggest that a classical Cuing task might not be a sufficient test of contingent capture in the spatial domain. In a classical cuing task, there is no stringent spatial control because the target can appear at any location. In addition, N2pc can be induced by not only involuntary capture but also by voluntary selection of target. Thus a cuing effect along with N2pc is necessary yet insufficient to confirm the presence of contingent capture.

Meeting abstract presented at VSS 2014

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