Albert D J, Walsh M L, Longley W
Physiol Behav. 1985 Oct;35(4):523-7. doi: 10.1016/0031-9384(85)90134-9.
The response to a series of objects by rats with lesions of the medial hypothalamus or medial accumbens was compared to that of spontaneous killing rats and sham-lesioned nonkillers. When exposed sequentially to a piece of wood, a wad of cotton, or a freshly killed mouse, there were no differences in the intensity of the initial response toward the stimulus object by spontaneous mouse killing rats and lesioned animals that were later shown to kill mice. However, lesioned animals did spend more time biting these objects and were more likely than spontaneous killers to attack the objects if they were moved about by the experimenter. When allowed to kill mice, there were no differences in the intensity of the attack by spontaneous and lesion-induced killers but again the lesioned animals bit the prey more following the kill and were more likely to attack the dead prey when it was moved by the experimenter. Sham-lesioned nonkillers spent less time biting the stimulus objects than spontaneous killers and never attacked the objects when they were moved by the experimenter. It is argued that the killing of lesioned animals is homologous to that of spontaneous killers but that the lesioned animals exhibit most components of the predatory behavior to an exaggerated degree.
将内侧下丘脑或内侧伏隔核受损的大鼠对一系列物体的反应与自发捕杀小鼠的大鼠以及假手术未捕杀小鼠的大鼠进行了比较。当依次将一块木头、一团棉花或一只刚杀死的小鼠暴露给它们时，自发捕杀小鼠的大鼠和后来被证明会捕杀小鼠的受损动物对刺激物体的初始反应强度没有差异。然而，受损动物确实会花更多时间啃咬这些物体，并且如果实验者移动这些物体，它们比自发捕杀者更有可能攻击这些物体。当允许它们捕杀小鼠时，自发捕杀者和受损诱导捕杀者的攻击强度没有差异，但同样，受损动物在捕杀后会更多地啃咬猎物，并且当实验者移动死猎物时，它们更有可能攻击。假手术未捕杀小鼠的大鼠啃咬刺激物体的时间比自发捕杀者少，并且当实验者移动物体时它们从不攻击。有人认为，受损动物的捕杀行为与自发捕杀者的行为类似，但受损动物表现出的大多数捕食行为成分都被夸大了。
