August 2009
Volume 9, Issue 8
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2009
Disrupting surface features disrupts established object representations
Author Affiliations
  • Cathleen M Moore
    Department of Psychology, University of Iowa
  • Teresa Stephens
    Department of Psychology, University of Iowa
  • Elisabeth Hein
    Department of Psychology, University of Iowa
Journal of Vision August 2009, Vol.9, 817. doi:10.1167/9.8.817
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      Cathleen M Moore, Teresa Stephens, Elisabeth Hein; Disrupting surface features disrupts established object representations. Journal of Vision 2009;9(8):817. doi: 10.1167/9.8.817.

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Abstract

A recent study using the object-reviewing paradigm of Kahneman, Treisman, and Gibbs (1992) found that although spatiotemporal continuity consistently yielded object-specific preview benefits, surface features including color, luminance, topology, size, and contrast polarity, even in combination, did not (Mitroff & Alvarez, 2007). This finding is consistent with the hypothesis that spatiotemporal continuity plays a prioritized role in the establishment and maintenance of persisting object representations (Scholl, 2007). Using the same object-reviewing procedure as Mitroff and Alvarez, we found that introducing abrupt changes to surface features (e.g., color) during the motion trajectory eliminated the object-specific preview benefit. In contrast, making the object disappear for three frames of motion (approximately 40 ms), a manipulation that was at least as disruptive to the spatiotemporal continuity of the motion trajectory as was the surface-feature change, did not eliminate the object-specific preview benefit. Assuming that object-specific preview benefits reflect a good operationalization of object representations, the following conclusion can be drawn: Although surface features may be insufficient to establish object representations without supporting spatiotemporal continuity, they do play a role in the maintenance and updating of established object representations.

Moore, C. M. Stephens, T. Hein, E. (2009). Disrupting surface features disrupts established object representations [Abstract]. Journal of Vision, 9(8):817, 817a, http://journalofvision.org/9/8/817/, doi:10.1167/9.8.817. [CrossRef]
Footnotes
 Supported by NSF grant BCS-0818536 to CMM.
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