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Harriet de Wit

University of Chicago, University of Illinois Chicago

55 papers in the library · 1,693 citations · publishing 1992-2026

Papers

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Neurophysiological and subjective profile of marijuana with varying concentrations of cannabinoids

Behavioural Pharmacology September 1, 2005 A. B. Ilan, Alan Gevins, Michael J. Coleman et al. 165 citations

This study investigated the contribution of different cannabinoids to the subjective, behavioral and neurophysiological effects of smoked marijuana. Healthy marijuana users (12 men, 11 women) participated in four sessions. They were randomly assigned to a low or a high delta9-tetrahydrocannabinol group (THC; 1.8% versus 3.6%). In the four sessions under blinded conditions subjects smoked...

Effects of THC on behavioral measures of impulsivity in humans.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology July 2003 Jennifer McDonald, Laura Schleifer, Jerry B Richards et al.

This study investigated the acute effects of delta(9)-tetrahydrocannabinol (THC) on four behavioral measures of impulsivity in recreational marijuana users. Although impulsive behavior has been studied using several different measures of impulsivity, few studies have utilized more than one of these measures on a single cohort. In this study, 37 healthy men and women participated in three...

Reinforcing effects of extended inhalation of nitrous oxide in humans.

Drug and Alcohol Dependence February 1, 1993 Cathleen S. Dohrn, J L Lichtor, Dennis W. Coalson et al.

The subjective, psychomotor and reinforcing effects of nitrous oxide at subanesthetic doses (30% and 40% in oxygen) were determined in normal healthy volunteers using a choice paradigm. Thirty percent nitrous oxide was chosen no more often than oxygen (41.6% choice rate), indicating that, for most of the subjects tested, extended inhalation of this nitrous oxide concentration was no more...

Subjective and psychomotor effects of nitrous oxide in healthy volunteers.

Behavioural Pharmacology February 1, 1992 Cathleen S. Dohrn, J.L. Lichtor, R.S. Finn et al.

The effects of nitrous oxide at subanesthetic doses (0%, 10%, 20%, and 40% in oxygen) on mood and psychomotor performance were determined in a group of 12 healthy volunteers (six males and six females). A randomized, placebo-controlled, double-blinded, crossover trial of five experimental sessions was used. Effects were measured before, during and after a 30-min inhalation period of the agent,...

MDMA enhances early visual processing for salient socio-emotional stimuli.

Connor Haggarty, Anya Bershad, Mahesh Kumar et al.

3,4-methylenedioxymethamphetamine (MDMA) has long been used non-medically, and it is currently under investigation for its potential therapeutic benefits. Both uses may be related to its ability to enhance empathy, sociability, emotional processing and its anxiolytic effects. However, the neural mechanisms underlying these effects, and their specificity to MDMA compared to other stimulants, are...