Mitchell J, Andrew R J
J Comp Physiol Psychol. 1976 Jul;90(7):643-52. doi: 10.1037/h0077231.
A tract in the chick is described that runs from the posterior nucleus paraventricularis magnocellularis (PVM) through the lateral hypothalamus to a small area of the anterior tegmentum, which is adjacent to the ventral tegmental area. Bilateral lesions of the posterior PVM or of the PVM tract or of its tegmental destination abolish the facilitation of copulation in male chicks by testosterone. The effect is specific in that the facilitation of attack is either unaffected or only slightly depressed by such lesions, while being itself specifically depressed by other hypothalamic lesions. No other hypothalamic tracts were found that were necessary for the facilitation of copulation. An equivalent copulatory system probably exists in the mammal, with a more diffuse distribution in the preoptic area but with similar connections back to the tegmentum.
本文描述了鸡体内的一条神经束，它从室旁核大细胞部后部（PVM）出发，穿过下丘脑外侧区，到达前脑被盖的一个小区域，该区域毗邻腹侧被盖区。PVM后部、PVM神经束或其被盖部终点的双侧损伤会消除睾酮对雄性雏鸡交配行为的促进作用。这种作用具有特异性，因为此类损伤对攻击行为的促进作用要么没有影响，要么仅有轻微抑制，而其他下丘脑损伤则会特异性地抑制攻击行为本身。未发现其他对交配行为促进作用必需的下丘脑神经束。哺乳动物可能存在类似的交配系统，其在视前区的分布更为弥散，但与被盖区的连接相似。
