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  Visual Categorization and Object Representation in Monkeys and Humans

Sigala, N., Gabbiani, F., & Logothetis, N. (2002). Visual Categorization and Object Representation in Monkeys and Humans. Journal of Cognitive Neuroscience, 14(2), 187-198. doi:10.1162/089892902317236830.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E028-F Version Permalink: http://hdl.handle.net/21.11116/0000-0005-85A4-B
Genre: Journal Article

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 Creators:
Sigala, N1, 2, Author              
Gabbiani, F, Author
Logothetis, NK1, 2, Author              
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: We investigated the influence of a categorization task on the extraction and representation of perceptual features in humans and monkeys. The use of parameterized stimuli (schematic faces and fish) with fixed diagnostic features in combination with a similarity-rating task allowed us to demonstrate perceptual sensitization to the diagnostic dimensions of the categorization task for the monkeys. Moreover, our results reveal important similarities between human and monkey visual subordinate categorization strategies. Neither the humans nor the monkeys compared the new stimuli to class prototypes or based their decisions on conditional probabilities along stimulus dimensions. Instead, they classified each object according to its similarity to familiar members of the alternative categories, or with respect to its position to a linear boundary between the learned categories.

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 Dates: 2002-02
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1162/089892902317236830
BibTex Citekey: 859
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Title: Journal of Cognitive Neuroscience
Source Genre: Journal
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Publ. Info: Cambridge, MA : MIT Press Journals
Pages: - Volume / Issue: 14 (2) Sequence Number: - Start / End Page: 187 - 198 Identifier: ISSN: 0898-929X
CoNE: https://pure.mpg.de/cone/journals/resource/991042752752726