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心理药物学(英文:Psychopharmacology )是指以科学方法研究预备、使用心理疾病药物及这些药物的效用。心理疾病相关药物称为psychotropic medications(psycho:心理的;tropic:作用于)。
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精神作用药物通常用神经递质来影响神经传导。神经递质主要一种化学物质来让神经元互相沟通,而精神作用药物则影响这个沟通过程。这些药物可以
The other central method through which drugs act is by affecting communications between cells through hormones. Neurotransmitters can usually only travel a microscopic distance before reaching their target at the other side of the synaptic cleft, while hormones can travel long distances before reaching target cells anywhere in the body. Thus, the endocrine system is a critical focus of psychopharmacology because 1) drugs can alter the secretion of many hormones; 2) hormones may alter the behavioral responses to drugs; 3) hormones themselves sometimes have psychoactive properties; and 4) the secretion of some hormones, especially those dependent on the pituitary gland, is controlled by neurotransmitter systems in the brain.
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