Journal article
Pigeons concurrently categorize photographs at both basic and superordinate levels
Psychonomic bulletin & review, Vol.11(6), pp.1111-1117
12/2004
DOI: 10.3758/BF03196745
PMID: 15875984
Abstract
We studied categorization in pigeons, using carefully controlled photographs. Within daily sessions, 4 pigeons had to classify each of 32 photographs into either its proper basic-level category (cars, chairs, flowers, or people; four-key forced choice procedure) or its proper superordinate-level category (natural or artificial; two-key forced choice procedure). The pigeons successfully classified the same stimuli at both levels. Overall, the pigeons learned the basic discrimination more quickly than the superordinate discrimination, but this difference was reliable only for artificial stimuli (cars and chairs), not for natural stimuli (flowers and people). The pigeons also exhibited reliable discrimination transfer to novel photographs, attesting to the open-endedness of these basic and superordinate categories.
Details
- Title: Subtitle
- Pigeons concurrently categorize photographs at both basic and superordinate levels
- Creators
- Olga Lazareva - Department of Psychology University of Iowa E11 Seashore Hall 52242 Iowa City IAKate Freiburger - Department of Psychology University of Iowa E11 Seashore Hall 52242 Iowa City IAEdward Wasserman - Department of Psychology University of Iowa E11 Seashore Hall 52242 Iowa City IA
- Resource Type
- Journal article
- Publication Details
- Psychonomic bulletin & review, Vol.11(6), pp.1111-1117
- Publisher
- Springer-Verlag; New York
- DOI
- 10.3758/BF03196745
- PMID
- 15875984
- ISSN
- 1069-9384
- eISSN
- 1531-5320
- Language
- English
- Date published
- 12/2004
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984070672402771
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