Impulsive choice in inbred strains of mice

被引：14

作者：

Otobe, T ^{[1
]}

Makino, J ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Psychol, Tsukuba, Ibaraki 3058572, Japan

来源：

BEHAVIOURAL PROCESSES | 2004年 / 67卷 / 01期

基金：

日本学术振兴会;

关键词：

choice; delay of reward; impulsivity; inbred strains of mice; lever press; self-control;

D O I：

10.1016/j.beproc.2004.02.001

中图分类号：

B84 [心理学];

学科分类号：

04 [教育学]; 0402 [心理学];

摘要：

When humans or non-humans are given a choice between receiving a sooner-smaller (SS) reinforcer, or a later-larger (LL) reinforcer, the choice of a SS reinforcer represents impulsive choice whereas the choice of a LL reinforcer represents self-controlled choice. It has been suggested that both biological and genetic factors influence impulsive/self-control choice in this paradigm. In the present study, the inbred strains of BALB/c, C57BL/6, and DBA/2 mice were given a choice to press one of two levers in an operant chamber. Depending on their choice, mice received either a smaller reinforcer (one pellet delivered after 6 s) sooner (SS) or a larger reinforcer (two pellets after 6, 9, 12, 18, or 30 s) later (LL). Mice preference for the larger reinforcer decreased with longer delays. More importantly, the BALB/c mice chose the SS reinforcer more often than the C57BL/6 mice under the 9- and 12-s delays, and more often than the DBA/2 mice under the 9-s delay. This indicates that the choice pattern of the BALB/c strain is more "impulsive" than the other strains and suggests that specific gene configurations influence impulsive choice in mice. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：19 / 26

页数：8

共 22 条

[1]

SPECIOUS REWARD - BEHAVIORAL THEORY OF IMPULSIVENESS AND IMPULSE CONTROL [J].