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Septal lesions and biting attacks in rats bidirectionally selected for emotionality.

Authors
  • Annen, Y
  • Fujita, O
Type
Published Article
Journal
Behavioral and neural biology
Publication Date
Mar 01, 1985
Volume
43
Issue
2
Pages
132–142
Identifiers
PMID: 4039927
Source
Medline
License
Unknown

Abstract

Twenty-nine colonies composed of one female and two male rats of high or low emotional strain were established. A dominant male of each colony was identified based on its attacks on an intruder rat. It was found that dominant males of the low emotional strain colonies were significantly more aggressive than those of the high emotional strain. Septal lesions or sham operations were given to dominant males of both strain colonies. Intruder tests were followed and several aggressive behaviors were measured by VTR observation. Biting attacks of the high emotional strain decreased for 10 days after septal latencies were shortened by septal lesions. Lesions X Strain interaction was significant. These results suggest that septal lesion effects on biting attacks are influenced by artificial genetic operations.

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