June 2004
Volume 4, Issue 8
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2004
Geons and Bubbles: Object recognition by pigeons
Author Affiliations
  • Edward Wasserman
    University of Iowa, USA
  • Olga Lazareva
    University of Iowa, USA
  • Brett Gibson
    University of New Hampshire, USA
  • Frédéric Gosselin
    Université de Montréal, Canada
  • Philippe Schyns
    University of Glasgow, UK
  • Irving Biederman
    University of Southern California, USA
Journal of Vision August 2004, Vol.4, 353. doi:10.1167/4.8.353
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      Edward Wasserman, Olga Lazareva, Brett Gibson, Frédéric Gosselin, Philippe Schyns, Irving Biederman; Geons and Bubbles: Object recognition by pigeons. Journal of Vision 2004;4(8):353. doi: 10.1167/4.8.353.

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Abstract

We trained three pigeons to recognize four shaded, unoccluded geons (arch, barrel, brick, wedge) using a four-key forced-choice discrimination task. When the pigeons mastered the discrimination task to a very high level of proficiency, they were presented with geon images that were partly revealed by a mid-grey mask punctured by a number of randomly located Gaussian windows (‘bubbles’; Gosselin & Schyns, 2000). We used several sets of bubbles images, with different number of bubbles per image, that revealed different amounts of visual information to the pigeons. Bubbles analysis disclosed that the pigeons attended to the edges of the geons, confirming one of the predictions of recognition-by-component theory (Biederman, 1989). The pigeons also appeared to be attending to some surface features, such as a bright spot on the surface of one of the geons.

Wasserman, E., Lazareva, O., Gibson, B., Gosselin, F., Schyns, P., Biederman, I.(2004). Geons and Bubbles: Object recognition by pigeons [Abstract]. Journal of Vision, 4( 8): 353, 353a, http://journalofvision.org/4/8/353/, doi:10.1167/4.8.353. [CrossRef]
Footnotes
 This research was supported by National Institute of Mental Health Grant MH47313.
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