June 1971

Marihuana and the Temporal Span of Awareness

Author Affiliations

Stanford, Calif; Palo Alto, Calif
From the departments of psychiatry (Drs. Melges and Tinklenberg) and medicine (Dr. Hollister), Stanford University School of Medicine, Stanford, Calif, and the Veterans Administration Hospital, Palo Alto, Calif (Dr. Hollister and Mr. Gillespie).

Arch Gen Psychiatry. 1971;24(6):564-567. doi:10.1001/archpsyc.1971.01750120080013

Oral doses of extracts of marihuana were found to induce a greater concentration on the present and a foreshortening of the span of awareness into the future. Although there were individual differences in emotional reactions, the greater concentration on the present was associated, in general, with euphoric moods.