A person uses a substance at noon. Although remaining awake and alert, the person experiences poor coordination, palpitations, and greatly enhanced visual perceptions. By dinner, the symptoms have almost completely subsided. The person MOST likely:
A) drank a substantial amount of alcohol.
B) took LSD.
C) injected heroin.
D) took a dose of barbiturates.

Question

Quizplus · Accepted Answer

LSD (lysergic acid diethylamide) is known for causing enhanced visual perceptions, among other sensory distortions, without necessarily impairing consciousness or causing sedation. The symptoms described, including poor coordination and palpitations, along with the relatively short duration of effects, are consistent with the effects of LSD. Alcohol, heroin, and barbiturates typically cause more pronounced sedation or impairment of consciousness than described.

A Person Uses a Substance at Noon