Relational discrimination learning between amplitude-modulated sounds in the rat

被引：7

作者：

Ono, K ^{[1
]}

Kudoh, M ^{[1
]}

Shibuki, K ^{[1
]}

机构：

[1] Niigata Univ, Dept Neurophysiol, Brain Res Inst, Niigata 9518585, Japan

来源：

NEUROSCIENCE LETTERS | 2003年 / 342卷 / 03期

关键词：

learning; memory; sound discrimination; skinner box; reward; rat;

D O I：

10.1016/S0304-3940(03)00281-7

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We studied the cue used by rats to discriminate between amplitude-modulated (AM) sounds. Water-deprived rats were exposed to two sounds, and licking a spout during the presentation of one of the two (S +) was rewarded with water, while licking during the other (S -) was not. The AM depth was 100, 60 or 20%. Rats were trained to discriminate between 100 and 60% AM sounds over 2 consecutive days. On the next day, the performance in discriminating between 60 and 20% AM sounds was evaluated. Of the four possible combinations of stimuli, a good performance was observed only when the relationship between S + and S - regarding the AM depth was kept constant throughout the experiments, indicating that the relationship regarding the AM depth was the cue used by the rats for the discrimination. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：171 / 174

页数：4

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