Wistar rats and C57BL/6 mice differ in their motivation to seek social interaction versus food in the Social versus Food Preference Test

被引:14
作者
Reppucci, Christina J. [1 ]
Brown, Leigha A. [1 ]
Chambers, Ashley Q. [1 ]
Veenema, Alexa H. [1 ]
机构
[1] Michigan State Univ, Dept Psychol, 766 Serv Rd,4016 ISTB, E Lansing, MI 48824 USA
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
Motivation; Food deprivation; Social isolation; Rats; Mice; Adolescence; SEX-DIFFERENCES; INBRED STRAINS; BEHAVIOR; ADOLESCENCE; LEWIS; PLAY; FISCHER-344; AVERSIONS; NOVELTY; MODELS;
D O I
10.1016/j.physbeh.2020.113162
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Here we characterized the Social versus Food Preference Test, a behavioral paradigm designed to investigate the competition between the choice to seek social interaction versus the choice to seek food. We assessed how this competition was modulated by internal cues (social isolation, food deprivation), external cues (stimulus salience), sex (males, females), age (adolescents, adults), and rodent model (Wistar rats, C57BL/6 mice). We found that changes in stimulus preference in response to the internal and external cue manipulations were similar across cohorts. Specifically, social over food preference scores were reduced by food deprivation and social familiarly in Wistar rats and C57BL/6 mice of both sexes. Interestingly, the degree of food deprivation-induced changes in stimulus investigation patterns were greater in adolescents compared to adults in Wistar rats and C57BL/6 mice. Strikingly, baseline stimulus preference and investigation times varied greatly between rodent models: across manipulations, Wistar rats were generally more social-preferring and C57BL/6 mice were generally more food-preferring. Adolescent Wistar rats spent more time investigating the social and food stimuli than adult Wistar rats, while adolescent and adult C57BL/6 mice investigated the stimuli a similar amount. Social isolation did not alter behavior in the Social versus Food Preference Test. Together, our results indicate that the Social versus Food Preference Test is a flexible behavioral paradigm suitable for future interrogations of the peripheral and central systems that can coordinate the expression of stimulus preference related to multiple motivated behaviors.
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页数:17
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