Multiple Unit Activity Patterns of Neuronal Populations in Gonadotropic Areas of the Quail Hypothalamus: Spontaneous and Photically-Induced Firing
作者:
J. Oliver,
J.D. Baylé,
期刊:
Neuroendocrinology
(Karger Available online 1975)
卷期:
Volume 17,
issue 2
页码: 175-188
ISSN:0028-3835
年代: 1975
DOI:10.1159/000122353
出版商: S. Karger AG
关键词: Gonadotropic control;Hypothalamus;Multiple unit activity;Quail
数据来源: Karger
摘要:
Multiple-unit activity (MUA) was obtained from neuronal pools in the gonadotropic hypothalamus of quails. A special device allowed for exploration of various hypothalamic structures in unanesthetized birds. All recording sessions were made in the dark. Spontaneous and flash light-evoked MUAs were recorded from both tuberal and dorsal gonadotropic areas, either in the morning or in the afternoon, and were compared to extragonadotropic firing patterns. Firing rates (spikes/10 sec) and integrated MUA (200 addresses) provided distinctive spontaneous neuronal activities for various cell clusters. These spontaneous salient features appeared to be changeable throughout the photoperiod. Flash stimulations resulted in a marked increase in MUA recorded from the gonadotropic regions of the hypothalamus.
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