Marijuana Effects on Semantic Memory: Verification of Common and Uncommon Category Members
- 1 October 1984
- journal article
- research article
- Published by SAGE Publications in Psychological Reports
- Vol. 55 (2) , 503-512
- https://doi.org/10.2466/pr0.1984.55.2.503
Abstract
Effects of smoked marijuana containing 10 mg delta-9-tetrahydrocannabinol and placebo on retrieval of simple, real-world knowledge in semantic memory were studied. In Exp. 1, subjects (36 men, mean age 23.8 yr.) decided whether an item (e.g. apple) belonged to a specified category (e.g., fruit). In Exp. 2, subjects (40 men, mean age 22.8 yr.) decided whether two items (e.g., apple, peach) belonged to the same category. Marijuana did not alter the normal difference in reaction time between common and uncommon examples of categories, suggesting that effects of marijuana on associations do not derive directly from underlying, general alterations of semantic memory retrieval. Marijuana's effects were not influenced by the demands on memory retrieval or by providing advance information relevant to the required decisions, suggesting memory retrieval was not impaired by this dose of marijuana.This publication has 17 references indexed in Scilit:
- Cannabis: Effects on memory and the cholinergic limbic system.Psychological Bulletin, 1983
- Reorganization in semantic memory: An interpretation of the facilitation effectJournal of Verbal Learning and Verbal Behavior, 1977
- Marijuana effects on long-term memory assessment and retrievalPsychopharmacology, 1977
- An Analysis of the Subjective Marijuana ExperienceInternational Journal of the Addictions, 1976
- A spreading-activation theory of semantic processing.Psychological Review, 1975
- Marihuana, Learning, and MemoryPublished by Elsevier ,1975
- Category dominance, instance dominance, and categorization time.Journal of Experimental Psychology, 1973
- Marihuana and retrieval from short-term memoryPsychopharmacology, 1973
- Retrieval of words from long-term memoryJournal of Verbal Learning and Verbal Behavior, 1971
- Category norms of verbal items in 56 categories A replication and extension of the Connecticut category norms.Journal of Experimental Psychology, 1969