Davis J D, Smith G P
Department of Psychology, University of Illinois, Chicago 60680.
Behav Neurosci. 1992 Feb;106(1):217-28.
The interlick interval distribution of rats while ingesting maltose under real and sham feeding conditions and while ingesting seven concentrations of sucrose under real feeding conditions was analyzed. The analysis revealed that the licking behavior of rats is organized into bursts of licking at a high rate. These bursts occurred in clusters that were separated by brief (250-500 ms) interruptions. The clusters were separated by intervals that ranged from 500 ms to many hundreds of seconds. Sham feeding increased the length of the meal by increasing the number but not the size of the clusters. Increasing the concentration of sucrose increased monotonically the size of the clusters but varied the number of clusters as an inverted-V-shaped function. This analysis revealed the details of the central nervous system's control over ingestive behavior.
分析了大鼠在真实喂食和假喂食条件下摄取麦芽糖时以及在真实喂食条件下摄取七种浓度蔗糖时的舔舐间隔分布。分析表明，大鼠的舔舐行为以高速率的舔舐爆发形式组织起来。这些爆发以短暂（250 - 500毫秒）的中断分隔成簇。簇与簇之间的间隔从500毫秒到数百秒不等。假喂食通过增加簇的数量而非大小来增加进食时间。增加蔗糖浓度会单调增加簇的大小，但簇的数量呈现倒V形函数变化。该分析揭示了中枢神经系统对摄食行为控制的细节。
