Lordosis in male rats: The facilitatory effect of mesencephalic dorsal raphe nucleus lesion

Masaki Kakeyama, Korehito Yamanouchi*

*この研究の対応する著者

研究成果査読

23 被引用数 (Scopus)

抄録

The dorsal raphe nucleus was destroyed (DRL) by a radiofrequency lesion generator in castrated male rats, and lordosis behavior was observed. Five weeks after the surgery, all animals were implanted with two Silastic tubes containing estradiol (E2). Behavioral tests were started 2 days after implantation of E2 and carried out every other day for 16 days. Castrated control and sham-operated control males showed low incidence of lordosis and low lordosis quotient (LQ) throughout the tests, whereas all the DRL males displayed lordosis and the mean LQ of the group was significantly higher than that of control groups, but lower than that of an ovariectomized female group. These results suggest that the dorsal raphe nucleus plays an important role in inhibiting lordosis in male rat brain.

本文言語English
ページ(範囲)181-184
ページ数4
ジャーナルPhysiology and Behavior
51
1
DOI
出版ステータスPublished - 1992 1

ASJC Scopus subject areas

  • 実験心理学および認知心理学
  • 行動神経科学

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