NDLI: Labeling and family resemblance in the discrimination of polymorphous categories by pigeons

Content Provider	Springer Nature Link
Author	Nicholls, Elizabeth Ryan, Catriona M. E. Bryant, Catherine M. L. Lea, Stephen E. G.
Copyright Year	2010
Abstract	Two experiments examined whether pigeons discriminate polymorphous categories on the basis of a single highly predictive feature or overall similarity. In the first experiment, pigeons were trained to discriminate between categories of photographs of complex real objects. Within these pictures, single features had been manipulated to produce a highly salient texture cue. Either the picture or the texture provided a reliable cue for discrimination during training, but in probe tests, the picture and texture cues were put into conflict. Some pigeons showed a significant tendency to discriminate on the basis of the picture cue (overall similarity or family resemblance), whereas others appeared to rely on the manipulated texture cue. The second experiment used artificial polymorphous categories in which one dimension of the stimulus provided a completely reliable cue to category membership, whereas three other dimensions provided cues that were individually unreliable but collectively provided a completely reliable basis for discrimination. Most pigeons came under the control of the reliable cue rather than the unreliable cues. A minority, however, came under the control of single dimensions from the unreliable set. We conclude that cue salience can be more important than cue reliability in determining what features will control behavior when multiple cues are available.
Starting Page	21
Ending Page	34
Page Count	14
File Format	PDF
ISSN	14359448
Journal	Animal Cognition
Volume Number	14
Issue Number	1
e-ISSN	14359456
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-07-23
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Pigeon Category discrimination Feature learning Family resemblance Labeling Salience Zoology Behavioural Sciences Human Physiology Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Ecology, Evolution, Behavior and Systematics

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