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Neuropsychologia. 1989;27(7):937-48.

Right hemisphere advantage for topographical orientation in the domestic chick.

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School of Biological Sciences, University of Sussex, Brighton, U.K.


When male chicks have to choose whether to orient by distant or proximal cues, chicks using the left eye (and so the right hemisphere) orient far better and make more use of distant cues than do right-eyed chicks. When both eyes are in use, left eye systems are mainly responsible for orientation, whereas right eye systems may concentrate on identifying food. Brief bias towards control of behaviour by the right eye system on day 8 allows it temporarily to be used successfully by the chick for orientation; apparently interference from the left eye system is reduced at this time.

[Indexed for MEDLINE]

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