Smith JE. Distribution of 3H-uridine-5 in rat brain areas after exposure to various training tasks - an autoradiographic analysis.
Pharmacol Biochem Behav 1975;
3:463-70. [PMID:
1153450 DOI:
10.1016/0091-3057(75)90057-x]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Operant schedules were used to isolate components of a training task and the distribution of radioactivity into various brain areas was studied using high resolution autoradiography. Rats exposed to a visual stimulus change showed more labelling in hippocampal area CA1 than littermates exposed to no stimulus change. Rats exposed to a non-cued contingency change showed higher labelling in hippocampal areas CA2 and CA4 than littermates exposed to a cued contingency change. The results suggest that hippocampal changes in RNA synthesis may be related more to the aversive conditions of the training task than to specific learning changes.
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