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Psychopharmacology (Berl) ; 239(5): 1539-1549, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35445839

RESUMO

RATIONALE: There is growing interest in the therapeutic potential of cannabidiol (CBD) across a range of psychiatric disorders. CBD has been found to reduce anxiety during experimentally induced stress in anxious individuals and healthy controls. However, the mechanisms underlying the putative anxiolytic effects of CBD are unknown. OBJECTIVES: We sought to investigate the behavioural and neural effects of a single dose of CBD vs. placebo on a range of emotion-related measures to test cognitive-mechanistic models of its effects on anxiety. METHODS: We conducted a randomised, double-blind, placebo-controlled, crossover, acute oral challenge of 600 mg of CBD in 24 healthy participants on emotional processing, with neuroimaging (viewing emotional faces during functional magnetic resonance imaging) and cognitive (emotional appraisal) measures as well as subjective response to experimentally induced anxiety. RESULTS: CBD did not produce effects on brain responses to emotional faces and cognitive measures of emotional processing, or modulate experimentally induced anxiety, relative to placebo. CONCLUSIONS: Given the rising popularity of CBD for its putative medical benefits, these findings question whether further research is warranted to investigate the clinical potential of CBD for the treatment of anxiety disorders.


Assuntos
Ansiolíticos , Canabidiol , Ansiolíticos/farmacologia , Ansiedade/psicologia , Transtornos de Ansiedade/tratamento farmacológico , Método Duplo-Cego , Emoções , Humanos
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