June 2006
Volume 6, Issue 6
Free
Vision Sciences Society Annual Meeting Abstract  |   June 2006
Learning a new cue to depth
Author Affiliations
  • Erika Scilipoti
    Brown University
  • Fulvio Domini
    Brown University
  • Corrado Caudek
    University of Firenze
Journal of Vision June 2006, Vol.6, 342. doi:10.1167/6.6.342
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      Erika Scilipoti, Fulvio Domini, Corrado Caudek; Learning a new cue to depth. Journal of Vision 2006;6(6):342. doi: 10.1167/6.6.342.

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

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Abstract

Can learning transform a non-informative 2D shape into a new cue for 3D depth perception? To answer this question, we determined (i) whether the visual system can associate, through learning, a specific depth-order to the features of an ambiguous 2D shape, and (ii) whether the learned association can successively affect the perceived depth-order, when a 3D depth-map is attributed, through disparity information, to the same 2D shape.

The experiment comprised two phases. During the learning phase, observers repeatedly viewed a 2D shape coupled with a depth-map specified by disparity information. In the test phase, two versions of the 2D shape used in the learning phase were presented. For the target stimulus, disparity information specified a (near threshold) depth map, having either the same sign as in the learning phase, or the opposite one; for the comparison stimulus, disparity specified a 2D shape. Observers were asked to choose the 3D stimulus. Performance improved across sessions when the depth-order of the learning phase was preserved in the test phase; performance decreased across sessions when the depth order of learning and test phases had opposite signs. Our results indicate that observers associated, through learning, a specific depth-order to an ambiguous 2D shape. Such results imply that a short-term associative process can transform an uninformative 2D signal into a novel cue to depth.

Scilipoti, E. Domini, F. Caudek, C. (2006). Learning a new cue to depth [Abstract]. Journal of Vision, 6(6):342, 342a, http://journalofvision.org/6/6/342/, doi:10.1167/6.6.342. [CrossRef]
Footnotes
 Supported by NSF: BCS 0345763
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