Journal article
Prior experience affects amodal completion in pigeons
Perception & psychophysics, Vol.69(4), pp.596-605
05/2007
DOI: 10.3758/BF03193917
PMID: 17727113
Abstract
In a three-alternative forced-choice task, 4 pigeons were trained to discriminate a target stimulus consisting of two colored shapes, one of which partially occluded the other, from two foil stimuli that portrayed either a complete or an incomplete version of the occluded shape. The dependent measure was the percentage of total errors that the birds committed to the complete foil. At the outset of training, the pigeons committed approximately 50% of total errors to the complete foil, but as training progressed, the percentage of errors to the complete foil rose. When the pigeons were given a second exposure to the initial set of stimuli, they committed 70% of total errors to the complete foil, suggesting that they now saw the complete foil as more similar to the occluded target than the incomplete foil. These results suggest that experience with 2-D images may facilitate amodal completion in pigeons, perhaps via perceptual learning.
Details
- Title: Subtitle
- Prior experience affects amodal completion in pigeons
- Creators
- Yasuo Nagasaka - University of Iowa, Iowa City, Iowa, USA. nyasuo@brain.riken.jpOlga F LazarevaEdward A Wasserman
- Resource Type
- Journal article
- Publication Details
- Perception & psychophysics, Vol.69(4), pp.596-605
- Publisher
- United States
- DOI
- 10.3758/BF03193917
- PMID
- 17727113
- ISSN
- 0031-5117
- eISSN
- 1532-5962
- Grant note
- MH47313 / NIMH NIH HHS
- Language
- English
- Date published
- 05/2007
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984070584502771
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