Journal article
The dimensional nature of same-different discrimination behavior in pigeons
Journal of experimental psychology. Animal behavior processes, Vol.37(3), pp.361-367
07/2011
DOI: 10.1037/a0021941
PMID: 21744981
Abstract
We studied the dimensional nature of same-different discrimination behavior in pigeons. Birds first learned to discriminate between simultaneously presented displays of 16 identical items (Same arrays) and 16 nonidentical items (Different arrays), conditional on the color of the background. After discrimination mastery, we tested the birds with Mixture arrays comprising both identical and nonidentical items. Accuracy increased and reaction time decreased as the disparity in entropy (a measure of variability) between the arrays increased. As well, within each entropy disparity level, lower entropy values were more discriminable than higher entropy values. These results accord with a logarithmic relation between entropy and discriminative behavior and, thus, with the idea that the discrimination of Same from Different arrays follows Weber's Law.
Details
- Title: Subtitle
- The dimensional nature of same-different discrimination behavior in pigeons
- Creators
- Leyre Castro - Department of Psychology, University of Iowa, IA City, IA 52242, USA. leyre-castroruiz@uiowa.eduEdward A Wasserman
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Animal behavior processes, Vol.37(3), pp.361-367
- DOI
- 10.1037/a0021941
- PMID
- 21744981
- NLM abbreviation
- J Exp Psychol Anim Behav Process
- ISSN
- 0097-7403
- eISSN
- 1939-2184
- Publisher
- American Psychological Association; United States
- Language
- English
- Date published
- 07/2011
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984070622402771
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