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Behav Processes. 2003 Aug 29;64(1):1-12.

Behavioural-analytical studies of the role of head movements in depth perception in insects, birds and mammals.

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1
Neurobiology Department, Institute of Zoology, University of Graz, A-8010, Graz, Austria

Abstract

In this review, studies of the role of head movements in generating motion parallax which is used in depth perception are examined. The methods used and definitiveness of the results vary with the animal groups studied. In the case of insects, studies which quantify motor outputs have provided clear evidence that motion parallax evoked by head movements is used for distance estimation and depth perception. In the case of birds and rodents, training studies and analyses of the head movements themselves have provided similar indications. In the case of larger mammals, due to a lack of systematic experiments, the evidence is less conclusive.

PMID:
12914988

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