Response acquisition with delayed reinforcement in Lewis and Fischer 344 rats

被引：13

作者：

Anderson, Karen G. ^{[1
]}

Elcoro, Mirari ^{[1
]}

机构：

[1] W Virginia Univ, Dept Psychol, Morgantown, WV 26506 USA

来源：

BEHAVIOURAL PROCESSES | 2007年 / 74卷 / 03期

关键词：

acquisition; delay of reinforcement; Fischer; 344; lever press; Lewis; rat;

D O I：

10.1016/j.beproc.2006.11.006

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Previous work has shown neurochemical and behavioral differences between Lewis rats and Fischer 344 rats. Some of this work suggests that there might be differential sensitivity to delayed reinforcement between the two strains. To further explore this possibility, Lewis (n = 8) and Fischer 344 (n = 8) rats were exposed to a response-acquisition task with a non-resetting 20 s delay to reinforcement. A tandem fixed-ratio 1, fixed-time 20 s schedule of reinforcement was programmed for one of two levers; presses on the alternate lever had no programmed consequences. A greater number of Lewis rats (5/8) acquired lever pressing compared to the Fischer 344 rats (2/8). Future work with these strains may lead to a better understanding of the genetic and/or neurochemical factors involved in temporal control of behavior. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：311 / 318

页数：8

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