Light exposure of chick embryo influences lateralized recall of imprinting memory

Johnston, ANB and Rogers, LJ (1999) Light exposure of chick embryo influences lateralized recall of imprinting memory. Behavioral Neuroscience, 113 6: 1267-1273. doi:10.1037//0735-7044.113.6.1267

Author Johnston, ANB
Rogers, LJ
Title Light exposure of chick embryo influences lateralized recall of imprinting memory
Journal name Behavioral Neuroscience   Check publisher's open access policy
ISSN 0735-7044
Publication date 1999-01-01
Year available 1999
Sub-type Article (original research)
DOI 10.1037//0735-7044.113.6.1267
Open Access Status Not yet assessed
Volume 113
Issue 6
Start page 1267
End page 1273
Total pages 7
Place of publication WASHINGTON
Language eng
Abstract Environmental cues, such as light during the later part of incubation, are known to establish lateralization of some forms of visually guided behaviors in birds. The authors investigated the effect of light on lateralized recall of imprinting memory in chicks. On Day E19 of incubation, one eye was occluded for 24 hr. The other eye received stimulation by light. Chicks were imprinted and then tested for their imprinting preferences after administration of a low dose (500 ng) of glutamate into either hemisphere. Chicks that had the right eye exposed to light during incubation showed recall of the imprinting stimulus after injection of the left hemisphere but not after injection into the right hemisphere. The reverse was found for chicks that had the left eye exposed to light. Hence, the hemisphere ipsilateral to the eye exposed to light before hatching became essential for recall of imprinting memory. The hemisphere used in recall of imprinting memory received indirect visual inputs and was determined by environmental stimulation (asymmetrical light input).
Keyword Dark-Reared Chicks
Recognition Memory
Functional Lateralization
Domestic Chick
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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