Journal article
Categorical Discrimination and Generalization in Pigeons: All Negative Stimuli Are Not Created Equal
Journal of experimental psychology. Animal behavior processes, Vol.18(2), pp.193-207
04/1992
DOI: 10.1037/0097-7403.18.2.193
Abstract
Three experiments investigated categorical discrimination and generalization in pigeons. Multiple fixed interval-extinction training was conducted with a pool of 48 different negative discriminative stimuli (12 slides each of people, flowers, cars, and chairs). The most errors were committed to negative stimuli (S−s) from the same category as the 12 positive stimulus (S+) slides. Such categorical generalization was stronger when the 12 S+s entailed 1 copy of 12 different slides (Experiment 2) than when the S+s entailed 12 copies of 1 slide (Experiment 1). In addition, reliable but incomplete loss of inhibitory control was observed to novel stimuli chosen from the same category as the S− slides (Experiment 3). These results are consistent with perceptual theories of categorical coherence, according to which preexisting similarities among stimuli chiefly determine the acquisition and application of categories.
Details
- Title: Subtitle
- Categorical Discrimination and Generalization in Pigeons: All Negative Stimuli Are Not Created Equal
- Creators
- Suzette L Astley - Cornell CollegeEdward A Wasserman - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Animal behavior processes, Vol.18(2), pp.193-207
- DOI
- 10.1037/0097-7403.18.2.193
- NLM abbreviation
- J Exp Psychol Anim Behav Process
- ISSN
- 0097-7403
- eISSN
- 1939-2184
- Publisher
- American Psychological Association
- Language
- English
- Date published
- 04/1992
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984070351202771
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