Hart B L, Ladewig J
J Comp Physiol Psychol. 1979 Jun;93(3):566-73. doi: 10.1037/h0077588.
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 are made prior to puberty. The subjects were allowed to interact with male peers during development. Animals with lesions had reduced frequence 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. The findings reveal a sparing of function with regard to urine-marking but not sexual behavior.
成年雄性犬双侧内侧视前区-下丘脑前部损伤会消除或损害交配行为，并减少尿液标记反应，但不影响攻击行为。本研究考察了在青春期前进行这些损伤时，这些相同的雄性社会性行为模式的成年形式的出现情况。在发育过程中，让受试动物与雄性同伴互动。有损伤的动物在幼年时爬跨频率降低，成年后几乎完全没有雄性交配活动。幼年和成年期的尿液标记和攻击行为不受损伤影响。研究结果显示，在尿液标记方面功能得以保留，但性行为方面并非如此。
