Osborne B, Dodek A B
Behav Neural Biol. 1986 Mar;45(2):212-22. doi: 10.1016/s0163-1047(86)90783-1.
The feeding and drinking behavior was examined in male rats with fornix transections and sham-operated control rats. Total food and water consumption was recorded but supplemented by a pattern analysis of feeding and drinking behavior. The behavior of the rats was continuously monitored during four hour morning and afternoon sessions under ad lib access and during a two hour session following adaptation to a restricted access feeding schedule. Rats with fornix transections were more active and exhibited increased frequencies of rearing, eating and drinking. The increased meal frequency in rats with fornix transections was accompanied by decreased meal durations and a reduction in the length of intermeal intervals. Total food and water consumption was unaffected by fornix transection as were the duration of sleep bouts and the frequencies of grooming, sleeping and carrying shavings. Fornix transections also reduced food carrying and food hoarding but only under conditions of restricted food access. The results suggest that fornix transection does not alter major homeostatic regulatory mechanisms nor does it alter the components of feeding and drinking behavior. Fornix transection alters, instead, the organization of microregulatory feeding and drinking patterns.
对穹窿横断的雄性大鼠和假手术对照大鼠的摄食和饮水行为进行了研究。记录了总的食物和水消耗量，但通过对摄食和饮水行为的模式分析进行补充。在上午和下午各4小时的自由进食时段以及适应限食时间表后的2小时时段内，持续监测大鼠的行为。穹窿横断的大鼠更活跃，站立、进食和饮水的频率增加。穹窿横断的大鼠进餐频率增加，同时进餐持续时间缩短，餐间间隔长度缩短。总的食物和水消耗量不受穹窿横断的影响，睡眠时段的持续时间以及梳理毛发、睡眠和搬运刨花的频率也不受影响。穹窿横断还减少了搬运食物和贮藏食物的行为，但仅在食物获取受限的情况下。结果表明，穹窿横断既不改变主要的体内平衡调节机制，也不改变摄食和饮水行为的组成部分。相反，穹窿横断改变了微调节摄食和饮水模式的组织。
