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A Meta-Analysis of Cannabis Research: Is there Evidence of Lasting Neurocognitive Effects?

Cannabis use in the United States has generally increased over the past decade as more States have legalized recreational use. In conjunction with changes to the chemical makeup, which has made available cannabis more potent, the long-term effects experienced by cannabis users may have changed, and more individuals may be effected. The current study replicated the methods used in Schreiner & Dunn (2012) and Grant et al. (2003) to conduct a meta-analysis examining the neurocognitive effects of cannabis after abstinence lasting a period of at least 25 days. Previous research has found mixed results, with some studies finding significant differences between abstinent cannabis users and matched healthy controls, and others finding no evidence of significant differences. Results of the current meta-analytical study found no significant effects within the domains of overall effects, attention, forgetting/retrieval, learning, or verbal/language. Results identified a significant small effect size within the domain of abstraction/executive function. Results continue to add to the growing evidence there are no significant long-term neurocognitive effects associated with cannabis use.

Identiferoai:union.ndltd.org:ucf.edu/oai:stars.library.ucf.edu:etd2023-1157
Date01 January 2024
CreatorsCrisafulli, Mark J
PublisherSTARS
Source SetsUniversity of Central Florida
LanguageEnglish
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceGraduate Thesis and Dissertation 2023-2024
RightsIn copyright

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