Clinical Trial: CBD Administration Associated with Short-Term Improvements in Verbal Recall

Basel, Switzerland: The administration of CBD is associated with short-term improvements in verbal recall in healthy subjects, according to randomized trial data published in the Journal of Psychiatric Research.

A team of Swiss researchers compared the effects of vaporized CBD versus placebo on verbal episodic memory performance in a cohort of 34 young adult subjects (ages 18 to 30). 

They reported that those provided CBD exhibited better verbal recall than those provided with a placebo. 

Investigators determined: “The present study revealed an average increase of recalled words 20 minutes after vaping CBD compared to placebo condition by 10 percent. Importantly, we did not detect medication effects on attention or working memory performance, suggesting that CBD has no negative impact on these basic cognitive functions.”

They concluded: “CBD might prove useful to enhance disease-related memory impairments being present in psychiatric disorders, neurodegenerative disorders, as well as in stress and stress-related exhaustion related to episodic memory deficits. … [W]hile further research is needed to identify dose-response and time-response relationships, our results show that CBD can improve episodic memory, a drug effect with possible therapeutic potential.”

Full text of the study, “Cannabidiol enhances verbal episodic memory in healthy young participants: A randomized clinical trial,” appears in the Journal of Psychiatric Research.