A narrative review found preclinical studies consistently support CBD improving cognition, but clinical human evidence has not yet confirmed these effects.
Cognitive disorder researchers, CBD consumers, neurologists.
Animal studies support CBD for cognition, but human trials have not confirmed it
What the researchers found
Preclinical studies demonstrated CBD improved cognitive performance in animal models of schizophrenia, epilepsy, Alzheimer's, and others. Clinical studies have not found consistent evidence. More research is needed.
Why it matters
Cognitive impairment is a major component of many disorders and is often treatment-resistant. The failure to translate animal CBD findings to humans is a critical gap.
The numbers in context
Preclinical evidence positive across multiple disease models. Clinical evidence not consistently supportive.
How the study worked
Narrative review evaluating preclinical and clinical data on CBD for cognitive impairment across multiple disorders.
What this study cannot tell us
Narrative review without meta-analysis. Limited clinical studies. Varying assessment tools and doses.
How to read the evidence
Narrative review highlighting a clear translational gap.
When this study was published
Published 2023.
The bigger picture
The translation gap between animal and human CBD studies is a recurring theme in cannabinoid research.
Questions still open
- Are current clinical trial designs adequate to detect CBD cognitive effects?
- Would chronic CBD show cognitive benefits that acute dosing does not?
Common questions
Can CBD improve cognitive function?
What conditions were studied?
Read the original research
Use of cannabidiol (CBD) for the treatment of cognitive impairment in psychiatric and neurological illness: A narrative review.
Experimental and clinical psychopharmacology, 31(5), 978-988
Citation
Ortiz, Rachel; Rueda, Sergio; Di Ciano, Patricia. (2023). Use of cannabidiol (CBD) for the treatment of cognitive impairment in psychiatric and neurological illness: A narrative review.. Experimental and clinical psychopharmacology, 31(5), 978-988. https://doi.org/10.1037/pha0000659
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