Tachibana T
Dev Psychobiol. 1979 Nov;12(6):539-44. doi: 10.1002/dev.420120603.
Offspring were either adequately nourished or undernourished during the suckling period. They had free access to food from weaning, and were given 2 behavioral tests between 13 and 19 weeks of age. Motivation for water was tested on a variable interval (VI) schedule at 3 levels of deprivation and a test of light-dark discrimination made at 23.5 hr of water deprivation. The results indicated (1) no clear difference in VI response rate, but (2) significant differences in discrimination performance between the 2 groups. A learning ability or certain relevant abilities rather than motivation for water appeared responsible for the difference in discrimination learning.
在哺乳期，后代要么得到充足的营养，要么营养不足。从断奶后，它们可以自由获取食物，并在13至19周龄之间接受了两项行为测试。在三种剥夺水平下，按照可变间隔（VI）时间表测试对水的动机，并在剥夺水23.5小时后进行明暗辨别测试。结果表明：（1）两组在VI反应率上没有明显差异，但（2）两组在辨别能力上存在显著差异。辨别学习的差异似乎是由学习能力或某些相关能力而非对水的动机造成的。
