Effects of medial preoptic-anterior hypothalamic lesions on development of sociosexual behavior in dogs

Benjamin Hart, Jan Ladewig

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

Bilateral medial preoptic-anterior hypothalamic lesions in adult male dogs eliminate or impair copulatory behavior and reduce urine-marking responses but do not affect aggressive behavior. The present study examined the emergence of the adult forms of these same male sociosexual behavioral patterns when the lesions were made prior to puberty. 18 beagle puppies were allowed to interact with male peers during development. Ss with lesions had reduced frequency of juvenile mounting and an almost total absence of male copulatory activity in adulthood. Urine-marking and aggressive behavior in the juvenile and adult periods were not affected by the lesions. Findings reveal a sparing of function with regard to urine-marking but not sexual behavior. (PsycINFO Database Record (c) 2006 APA, all rights reserved).

Original languageEnglish (US)
Pages (from-to)566-573
Number of pages8
JournalJournal of Comparative and Physiological Psychology
Volume93
Issue number3
DOIs
StatePublished - Jun 1 1979

Keywords

  • medial preoptic anterior hypothalamic lesions, prepubertal development of sociosexual behavior, male beagles

ASJC Scopus subject areas

  • Medicine(all)

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