---
abstract: |
Three video-formatted experiments investigated the categorization of ‘above’ and ‘below’ spatial relations in baboons (Papio papio). Using an identity matching-to-sample task, six baboons correctly matched line–dot stimuli based on the ‘above’ or ‘below’ location of the dot relative to the line (Experiment 1). Positive transfer of performance was then observed when the line–dot distance depicted in the sample stimulus differed from that of the two comparison stimuli (Experiment 2). Using a go:nogo procedure, two baboons were further trained to discriminate
whether a ‘B’ character was displayed ‘above’ or ‘below’ a ‘3’ character (Experiment 3). After training, a positive transfer of performance was observed with the same type of stimuli depicted in different type fonts. Altogether, these
results suggest that baboons may form conceptual representations of ‘above’ and ‘below’ spatial relations, and categorize visual forms on that basis.
altloc:
- http://www.up.univ-mrs.fr/wpsycle/documentpdf/documentvauclair/Depy1999.pdf
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creators_name:
- family: Dépy
given: D
honourific: ''
lineage: ''
- family: Fagot
given: J
honourific: ''
lineage: ''
- family: Vauclair
given: J
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date: 1999
date_type: published
datestamp: 2004-04-30
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dir: disk0/00/00/35/95
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eprintid: 3595
fileinfo: /style/images/fileicons/application_pdf.png;/3595/1/Depy_et_al_BP_99.pdf
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keywords: "Above/below categorical spatial relations; Baboons; Papio papio\n\n"
lastmod: 2011-03-11 08:55:32
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publication: Behavioural Processes
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rev_number: 12
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status_changed: 2007-09-12 16:51:59
subjects:
- comp-psy
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title: Processing of above/below categorical spatial relations by baboons (Papio papio)
type: journalp
userid: 4872
volume: 48