Cannabis and Tobacco Co-Use Is Associated With Impaired Neurocognitive Performance in Individuals at Clinical High Risk for Psychosis.
Biological Psychiatry: Cognitive Neuroscience and Neuroimaging April 1, 2026 Daniel Bello, J. Connolly, Jean Addington et al.
BACKGROUND Cannabis use is highly prevalent among people with psychotic disorders. While there is some indication that cannabis use exacerbates psychosis symptoms, its neurocognitive effects remain unclear. Co-use of cannabis and tobacco is increasing in the general population, but little is known about its effects in people with psychosis or those at risk for developing a psychotic disorder,...