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ID 246
file
creator
Okamura, Izumi
subject
cerebellum
goldfish
classical conditioning
emotional learning
NDC
Fishing industry. Fisheries
abstract
To investigate the cognitive role of the cerebellum of fish, we conducted experiments examining effects of cerebellar manipulations on fear-related classical heart rate conditioning in goldfish. We performed two types of manipulations, one was total ablation of the corpus cerebelli and the other was localized cooling of the corpus cerebelli for reversible inactivation of the cerebellar function. Both the cardiac arousal response to the first presentation of the conditioned stimulus and the cardiac reflex to the aversive unconditioned stimulus were not impaired by the ablation or cooling of the corpus cerebelli. On the other hand, inactivation of cerebellar function severely impaired the acquisition of a conditioned cardiac response in the fear-related conditioning. In addition, localized cooling of the corpus cerebelli reversibly suppressed the expression of established conditioned response. We suggest that the cerebellum of fish is not only being a motor coordination center but also is involved in emotional learning.
journal title
Behavioural brain research
volume
Volume 153
issue
Issue 1
start page
143
end page
148
date of issued
2004
publisher
Elsevier B.V
issn
0166-4328
ncid
publisher doi
pubmed id
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2003 Elsevier B.V.
relation is version of URL
http://dx.doi.org/10.1016/j.bbr.2003.11.008
department
Graduate School of Biosphere Science



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