Marijuana: dose effects on pulse rate, subjective estimates of intoxication, free recall and recognition memory. 1978

L L Miller, and T L Cornett

The effect of marijuana on memory as measured by free recall and recognition, pulse rate and self ratings of intoxication was evaluated in 16 male volunteers. Marijuana containing 0, 5, 10 or 15 mg delta9-THC was administered to all subjects by smoking in 4 sessions separated by a 1 week interval. Free recall was reduced in a dose related manner by the drug, but recognition memory was unaffected. A 2 sec word presentation rate produced inferior recall in comparison to a 4 sec rate, but this variable did not interact with drug condition. Intrusion errors increased following intoxication but this effect was not systematically related to dosage of delta9-THC. Both pulse rate and self ratings of intoxication increased with dosage.

UI MeSH Term Description Entries
D008297 Male Males
D008568 Memory Complex mental function having four distinct phases: (1) memorizing or learning, (2) retention, (3) recall, and (4) recognition. Clinically, it is usually subdivided into immediate, recent, and remote memory.
D011674 Pulse The rhythmical expansion and contraction of an ARTERY produced by waves of pressure caused by the ejection of BLOOD from the left ventricle of the HEART as it contracts. Pulses
D011939 Mental Recall The process whereby a representation of past experience is elicited. Recall, Mental
D002188 Cannabis The plant genus in the Cannabaceae plant family, Urticales order, Hamamelidae subclass. The flowering tops are called many slang terms including pot, marijuana, hashish, bhang, and ganja. The stem is an important source of hemp fiber. Bhang,Ganja,Hashish,Hemp,Cannabis indica,Cannabis sativa,Hemp Plant,Marihuana,Marijuana,Bhangs,Cannabi,Ganjas,Hashishs,Hemp Plants,Hemps,Plant, Hemp,Plants, Hemp
D003071 Cognition Intellectual or mental process whereby an organism obtains knowledge. Cognitive Function,Cognitions,Cognitive Functions,Function, Cognitive,Functions, Cognitive
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013759 Dronabinol A psychoactive compound extracted from the resin of Cannabis sativa (marihuana, hashish). The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound. THC,Tetrahydrocannabinol,delta(9)-THC,9-ene-Tetrahydrocannabinol,Marinol,Tetrahydrocannabinol, (6a-trans)-Isomer,Tetrahydrocannabinol, (6aR-cis)-Isomer,Tetrahydrocannabinol, (6aS-cis)-Isomer,Tetrahydrocannabinol, Trans-(+-)-Isomer,Tetrahydrocannabinol, Trans-Isomer,delta(1)-THC,delta(1)-Tetrahydrocannabinol,delta(9)-Tetrahydrocannabinol,9 ene Tetrahydrocannabinol,Tetrahydrocannabinol, Trans Isomer
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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