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Published Online:https://doi.org/10.1176/ajp.125.3.357

DOM, a hallucinogen related to mescaline and amphetamine and designated "STP" by hippies, along with DOET, the ethyl homologue of DOM, were given in small doses to normal subjects in a double-blind study. Both drugs increased self-awareness and produced mild euphoria but no hallucinogenic or psychotomimetic effects. The two drugs "freed up" subjects' word associations without impairing memory or concentration; in fact, DOM enhanced performance on serial learning tasks. Although DOM did not affect visual discrimination, it altered the perception of tachistoscopically presented TAT cards.

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