Right hemisphere involvement in imprinting memory revealed by glutamate treatment

Johnston, ANB and Rogers, LJ (1998) Right hemisphere involvement in imprinting memory revealed by glutamate treatment. Pharmacology Biochemistry and Behavior, 60 4: 863-871. doi:10.1016/S0091-3057(98)00073-2

Author Johnston, ANB
Rogers, LJ
Title Right hemisphere involvement in imprinting memory revealed by glutamate treatment
Journal name Pharmacology Biochemistry and Behavior   Check publisher's open access policy
ISSN 0091-3057
Publication date 1998-08-01
Year available 1998
Sub-type Article (original research)
DOI 10.1016/S0091-3057(98)00073-2
Volume 60
Issue 4
Start page 863
End page 871
Total pages 9
Place of publication OXFORD
Language eng
Abstract The lateralized use of the forebrain hemispheres during recall of imprinting memory was investigated using unilateral intrahemispheric injections of glutamate. Administration of glutamate to the right hemisphere 1, 3, or 6 h after exposure to the imprinting stimulus disrupted recall 8 h after the end of training, whereas the same treatment of the left hemisphere had no effect. Imprinted chicks treated with glutamate injected into the right hemisphere did not approach the imprinting stimulus in preference to an alternative, unfamiliar stimulus during a simultaneous choice test, whereas imprinted chicks treated with glutamate injected into the left hemisphere showed a preference for the imprinting stimulus. Thus, the left and right hemispheres are involved differentially in the recall of imprinting memory. Fear behavior or activity levels were not altered by glutamate treatment of either the right or left hemisphere, indicating that the effects of glutamate were specific to recall of imprinting memory. However, the amnestic effect of treatment of the right hemisphere with glutamate was transient: it was no longer evident by 48 h after the end of training. Also, glutamate had no effect when the chicks were treated 9 h after the end of training. These results suggest that regions in right hemisphere of the chick brain are involved in early (0-8 h after training) recall of imprinting memory. (C) 1998 Elsevier Science Inc.
Keyword Asymmetry
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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