Light experience and the development of behavioural lateralization in chicks. III. Learning to distinguish pebbles from grains

Rogers, L. J., Andrew, R. J. and Johnston, A. N. B. (2007) Light experience and the development of behavioural lateralization in chicks. III. Learning to distinguish pebbles from grains. Behavioural Brain Research, 177 1: 61-69. doi:10.1016/j.bbr.2006.11.002


Author Rogers, L. J.
Andrew, R. J.
Johnston, A. N. B.
Title Light experience and the development of behavioural lateralization in chicks. III. Learning to distinguish pebbles from grains
Journal name Behavioural Brain Research   Check publisher's open access policy
ISSN 0166-4328
Publication date 2007-02-01
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.bbr.2006.11.002
Open Access Status Not yet assessed
Volume 177
Issue 1
Start page 61
End page 69
Total pages 9
Place of publication AMSTERDAM
Publisher ELSEVIER SCIENCE BV
Language eng
Abstract Chicks searching for food grains against a background of unfamiliar pebbles usually peck pebbles less when using the right eye (RE), or both eyes, than when using the left eye (LE), provided that the embryo's RE has been exposed to light (Li), as is normal. When pecking is fast this right/left difference is mainly due to a heightened ability of RE chicks to inhibit premature pecks (and inappropriate responses in general). Dark incubation (Da) abolishes this ability in RE chicks, and RE and LE chicks show similar frequent pebble pecks. We show now that, under conditions that cause cautious pecking, both Li and Da chicks show a new effect: in both cases LE chicks peck pebbles more than RE chicks, probably because of the novelty of pebbles. Interest in novelty in LE chicks is known to be unaffected by light in incubation. Age-dependent effects are also important. RE and LE chicks, which had either the LE or RE exposed to light before hatching, were tested on days 3, 5, 8 or 12 post-hatching, under conditions giving normal fast pecking. Artificial exposure of the embryo's LE to light reversed the lateralization: in general, chicks using the light-exposed eye performed well at all ages. Irrespective of which eye system had heightened ability to inhibit pebble pecks, RE performance differed from usual on 2 days, whereas LE chicks showed no age-dependent changes. Changes confined to the RE system, therefore, affect behaviour independently of lateralization of the ability to inhibit inappropriate response. (c) 2006 Elsevier B.V. All rights reserved.
Keyword Chicks
Development
Embryo
Incubation in darkness
Lateralization
Light exposure
Pebble-floor task
Visual pathways
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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Citation counts: TR Web of Science Citation Count  Cited 27 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 28 times in Scopus Article | Citations
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