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substance-related disorder

any of various disorders caused by the effects of a drug or a toxin. The term in DSM–5 encompasses substance use disorders and substance-induced disorders (e.g., intoxication, withdrawal) caused by alcohol; opioids; stimulants (e.g., amphetamine, cocaine); sedatives, hypnotics, or anxiolytics; and other substances. The term also broadly includes mental disorders (e.g., delirium, depression, psychosis) that may be induced by intoxication or withdrawal from various substances, including some medications.

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Psychology term of the day

January 30th 2025

Meckel’s syndrome

Meckel’s syndrome

a congenital disorder marked by microcephaly; eye, ear, and olfactory abnormalities; and varying degrees of brain-tissue anomalies. Some affected children show premature closure of skull sutures. The patients either are stillborn or die in early infancy. [Johann Friedrich Meckel (1781–1833), German anatomist]