FOOD-MOTIVATED BEHAVIOR IN RATS WITH CORTICO-BASOMEDIAL AMYGDALA DAMAGE
FOOD-MOTIVATED BEHAVIOR IN RATS WITH CORTICO-BASOMEDIAL AMYGDALA DAMAGE
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DOI：
10.1037/0735-7044.98.3.441
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发表时间：
1984-01-01
影响因子：
1.9
通讯作者：
FONBERG, E
中科院分区：
文献类型：
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作者：
LUKASZEWSKA, I;KORCZYNSKI, R;FONBERG, E
12只杏仁核损伤（CBM）大鼠和20只假手术对照在几种与食物有关的情况下进行了测试。在新的环境中，CBM大鼠表现出比对照组更长的进食延迟，这是由于更明显的探索。在争夺食物的过程中，CBM大鼠在与对照组的竞争中输掉了85%。比赛结束后，当被允许单独进食时，CBM老鼠对空杯子的消化反应比对照组更持久，可能是因为它们在食物竞争中经历了更多的失败。两组人都能克服通往食物的路上的障碍，这表明了相似的消化动机。CBM大鼠对饥饿反应性降低的唯一直接指示是24小时禁食诱导的吞咽减退。皮质-基底-内侧杏仁核区参与控制饮食和其他动机之间的关系。讨论了食物动机的最终改变在术后这种平衡的改变中的作用。
Twelve rats with amygdala damage (CBM) and 20 sham-operated controls were tested in several food-related situations. The CBM rats showed a longer latency to eat than controls in a novel environment due to more pronounced exploration. In the competition for food, CBM rats lost 85% of encounters with controls. Immediately after the contest, when allowed to eat singly, CBM rats displayed a higher persistence of alimentary responses to an emptied cup than did controls, presumably because they experienced more losses in the food competition. Both groups were equally able to overcome obstacles on the way to food, which suggests similar alimentary motivation. The only direct indication of a lowered responsiveness to hunger in CBM rats was 24-h fasting-induced hypophagia. The involvement of the cortico-basomedial amygdaloid region in the control of relations between alimentary and other motivations was indicated. The contribution of eventual changes of food motivation in the postoperative alteration of this balance is discussed.