基礎心理学研究
Online ISSN : 2188-7977
Print ISSN : 0287-7651
ISSN-L : 0287-7651
第2回フォーラム 学習と食と感情と
ネズミの悪心を土喰いで測る
中島 定彦
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ジャーナル フリー

2019 年 38 巻 1 号 p. 137-142

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Kaolin clay intake is generated in rats by a variety of nausea-inducing treatments, including rotation (motion sickness), irradiation, and administration of emetic chemicals such as lithium chloride, copper sulfate, ritonavir, recreational drugs (e.g., morphine, apomorphine, nicotine, and ethanol), and various anti-cancer drugs (e.g., cisplatin, cyclophosphamide, and 5-fluorouracil). Recent studies conducted in my laboratory have shown that kaolin clay intake is also generated in rats by running in an activity wheel or swimming in a water bucket, suggesting that these activities induce visceral discomfort similar to nausea. This finding is consonant with the fact that, similar to emetic treatments conventionally employed in conditioned taste-aversion studies in rats, running and swimming act as unconditioned stimuli to establish avoidance of a paired taste.

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