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Sensing without seeing in comparative visual search

Galpin, AJ, Underwood, G and Chapman, P 2008, 'Sensing without seeing in comparative visual search' , Consciousness and Cognition, 17 (3) , pp. 658-673.

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    Rensink [Rensink, R. A. (2004). Visual sensing without seeing. Psychological Science, 15(1), 27–32] has presented evidence suggesting visual changes may be sensed without an accompanying visual experience. Here, we report two experiments in which we monitored observers’ eye-movements whilst they searched for a difference between two simultaneously presented images and pressed separate response keys when a difference was seen or sensed. We first assessed whether sensing performance was random by collecting ratings of confidence in the validity of sensing and assessing gaze location during sensing. Sensing was not random: fixation position and confidence ratings were different when a difference was present compared to catch trials. Furthermore, the uniformity of objects in the images and the type of difference appear to affect seeing and sensing differently, suggesting that these processes are dissociated. The possibility is discussed of a sensing mechanism that increases vigilance toward unconsciously registered differences, particularly changes to scene layout.

    Item Type: Article
    Uncontrolled Keywords: Implicit change detection; eye-movements; comparative visual search
    Themes: Subjects / Themes > B Philosophy. Psychology. Religion > BF Psychology
    Subjects outside of the University Themes
    Schools: Colleges and Schools > College of Health & Social Care > School of Health Sciences > Centre for Health Sciences Research
    Colleges and Schools > College of Health & Social Care
    Colleges and Schools > College of Health & Social Care > School of Nursing, Midwifery, Social Work & Social Sciences > Centre for Social Justice Research
    Journal or Publication Title: Consciousness and Cognition
    Publisher: Elsevier
    Refereed: Yes
    ISSN: 1053-8100
    Depositing User: Users 47901 not found.
    Date Deposited: 21 Apr 2011 11:33
    Last Modified: 20 Aug 2013 17:50

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