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Title: Prehatching visual experience and lateralization in the visual Wulst of the chick
Contributor(s): Deng, Chao (author); Rogers, Lesley  (author)
Publication Date: 2002
DOI: 10.1016/S0166-4328(02)00050-5
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Abstract: We revealed functional lateralization of the chick visual system by placing injections of monosodium glutamate (0.5 μl, 100 mM) into the left or right Wulst regions of the hemispheres, and examined the effects of light experience before hatching on this lateralization. Following exposure of the left or right eye to light for 24 h beginning on day 18 of incubation, the chick's ability to categorise grain as distinct from pebbles was impaired by glutamate treatment of the Wulst contralateral to the exposed eye. Attack and copulation scores were also elevated. Following incubation of the eggs in darkness or with both eyes exposed to light, treatment of neither the left or right Wulst affected performance on the pebble-grain task: showing that either the left and right Wulst can assume control of this function. Treatment of either the left or right Wulst of these chicks elevates attack and copulation. However, examination of the distribution of attack scores revealed a bimodality in the attack scores of the chick.
Publication Type: Journal Article
Source of Publication: Behavioural Brain Research, 134(1-2), p. 375-385
Publisher: Elsevier BV
Place of Publication: Amsterdam, Netherlands
ISSN: 1872-7549
Field of Research (FOR): 060801 Animal Behaviour
Socio-Economic Objective (SEO): 970106 Expanding Knowledge in the Biological Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
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