Several of the behavioral consequences of acute and chronic amphetamine treatment were evaluated and related to the underlying neurochemical correlates of drug treatment. It was suggested that decreased noradrenergic activity after long-term amphetamine treatment influences stimulus sampling, whereas enhanced dopaminergic activity is responsible for the progressive augmentation of stereotypy and self-stimulation behavior observed after long-term exposure to amphetamine. It was hypothesized that amphetamine-induced psychosis and the symptomatology associated with schizophrenia are related to alterations in both norepinephrine and dopamine activity.

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Neuroscience and Biobehavioral Reviews
Carleton University

Kokkinidis, L. (Larry), & Anisman, H. (1981). Amphetamine psychosis and schizophrenia: A dual model. Neuroscience and Biobehavioral Reviews, 5(4), 449–461. doi:10.1016/0149-7634(81)90015-4