Preference for novel flavors in adult Norway rats (Rattus norvegicus).
标题 | Preference for novel flavors in adult Norway rats (Rattus norvegicus). |
文章类型 | Journal Article |
发表年度 | 2003 |
作者 | Galef, B. G., & Whiskin E. E. |
期刊 | Journal of comparative psychology (Washington, D.C. : 1983) |
卷 | 117 |
期 | 1 |
页码 | 96-100 |
发表日期 | 2003 Mar |
关键词 | Animals, Choice Behavior, Female, Food Preferences, Lithium Chloride, Odors, Random Allocation, Rats, Rats, Long-Evans, Smell, 食物选择 |
摘要 | The authors fed rats 1 of 2 distinctively flavored, roughly equipalatable diets for 3 days then offered them an ad libitum choice between the 2 diets. For 3 days, subjects exhibited a reduced relative intake of whichever diet they had previously eaten (Experiment 1). Such reduction in relative intake was as effective as a toxicosis-induced conditioned aversion in determining subjects' food choices (Experiment 2). The strength of exposure-induced reduction in relative intake did not depend on similarity of the 2 diets offered for choice either to each other or to subjects' maintenance diet (Experiment 3) but did require continuous exposure to a diet (Experiment 4). These experiments provide the first evidence of a robust, exposure-induced decrease infood preference in rats lasting for days rather than minutes. |
Alternate Journal | J Comp Psychol |