Galef B G
Dev Psychobiol. 1982 Sep;15(5):479-90. doi: 10.1002/dev.420150510.
The present experiments examine acquisition and waning of exposure-induced attraction to a nonnatural odor in rat pups. I found that (1) acquisition of attraction induced by experience of an odor associated with the mother (M-E) and of attraction induced by experience of an odor in the general environment (S-E) had similar time courses and were of similar magnitude in pups less than 20 days of age; (2) waning of S-E-induced attraction to a nonnatural odor was far more rapid than waning of M-E-induced attraction; (3) M-E and S-E to an odor were less effective in pups greater than 20 days of age than in pups less than 20 days of age; and (4) although pups greater than 20 days of age receiving M-E to an odor exhibited enhanced attraction to that odor, pups of equal age receiving S-E to the same odor did not.
本实验研究了幼鼠暴露于非自然气味后习得的吸引力及其消退情况。我发现：（1）与母亲相关气味的体验（M-E）所诱导的吸引力的习得，以及一般环境中气味的体验（S-E）所诱导的吸引力的习得，在小于20日龄的幼鼠中具有相似的时间进程且程度相似；（2）S-E诱导的对非自然气味的吸引力的消退比M-E诱导的吸引力的消退要快得多；（3）对于大于20日龄的幼鼠，气味的M-E和S-E比小于20日龄的幼鼠效果要差；（4）尽管大于20日龄的幼鼠接受气味的M-E后对该气味的吸引力增强，但相同年龄接受相同气味S-E的幼鼠却没有。
