Key Findings:  This systematic review, including 45 studies from a pool of 224, assesses the impact of acute cannabis exposure on brain function, revealing that THC and CBD typically exert opposite neurophysiological effects on brain activity in humans and animals, with no strong evidence supporting increased dopaminergic activity in THC-induced psychosis, highlighting the need for more standardized methodologies and replication in future neuroimaging studies.
Type of Study:  Clinical Meta-analysis
Study Result:  Inconclusive
Research Location(s):  Spain
Year of Pub:  2014
Cannabinoids Studied:  Cannabidiol (CBD), Tetrahydrocannabinol (THC)
Phytocannabinoid Source:  Unspecified
Citation:  Batalla A, et al. Neuroimaging studies of acute effects of THC and CBD in humans and animals: a systematic review. Curr Pharm Des. 2014; 20:2168-85. doi: 10.2174/13816128113199990432
Authors:  Batalla A, Crippa JA, Busatto GF, Guimaraes FS, Zuardi AW, Valverde O, Atakan Z, McGuire PK, Bhattacharyya S, Martín-Santos R