Latent Inhibition and Facilitation of Conditioned Taste Aversion in Preweanling Rats

被引：5
|
作者：
Gaztanaga, Mirari [1 ]
Ezequiel Aranda-Fernandez, P. [1 ]
Diaz-Cenzano, Elena [1 ]
Gabriela Chotro, M. [1 ]
机构：
[1] Univ Basque Country, UPV EHU, Fac Psychol, Biscay, Spain
来源：
DEVELOPMENTAL PSYCHOBIOLOGY | 2015年 / 57卷 / 01期
关键词：
conditioned taste aversion; latent inhibition; facilitation; preweanling; CS preexposure; US-intensity; rat; STIMULUS PREEXPOSURE; CS-PREEXPOSURE; PRIOR EXPOSURE; ONTOGENY; ADULT; NEOPHOBIA; RETENTION; YOUNG;
D O I：
10.1002/dev.21263
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Early in ontogeny, taste preexposure has been found to induce latent inhibition as well as produce a facilitation of conditioned taste aversion (CTA). In this study, the effect of taste preexposure on CTA was investigated in 13-14day old rats as a function of taste preexposure (0, 1, or 3 trials) and unconditioned stimulus intensity (LiCl: 0, 0.15, or 0.30M). After one conditioning trial, with the low intensity US, an aversion was only observed after taste preexposure (facilitation). When using the strong US, an aversion was found without preexposure while latent inhibition was observed with 3 preexposure trials. In conclusion, stimulus preexposure can either facilitate conditioning or produce latent inhibition in infant rats, depending on the amount of stimulus preexposure and the intensity of the US. (c) 2014 Wiley Periodicals, Inc. Dev Psychobiol 57: 96-104, 2015.
引用
收藏
页码：96 / 104
页数：9
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