Professor Bart Hoebel and his team in the Department of Psychology and the Princeton Neuroscience Institute have been studying signs of sugar addiction in rats for years.

Bart Hoebel教授以及他在心理学系还有Princeton神经科学研究所的团队，多年来在大鼠的身上研究糖成瘾(sugar addiction)的症候。

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We open an introductory psychology textbook to the chapter on motivation and addiction. Two principles seem appropriate.

我们打开一本大学心理学教程，翻到“动机和暗示”一章，下面两个理论看起来相当适用。

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The Internet addiction disorders has a considerable effect on psychology and spiritual health of middle school students.

中学生网络成瘾对中学生心理和精神健康有较大的影响。

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The physiology and psychology of addiction are imperfectly understood, but if addictiveness is truly the criterion for a ban, then booze and cigarettes should be banned, not cannabis and ecstasy.

ECONOMIST: Shopping for a drugs policy