Association of extent of cannabis use and psychotic like intoxication experiences in a multi-national sample of first episode psychosis patients and controls.
Musa Basseer SamiDiego QuattroneLaura FerraroGiada TripoliErika La CasciaCharlotte Gayer-AndersonJean-Paul SeltenCelso ArangoMiguel BernardoIlaria TarriconeAndrea TortelliGiusy GattoSimona Del PeschioCristina Marta Del-BenBart P RuttenPeter B JonesJim van OsLieuwe de HaanCraig MorganCathryn LewisSagnik BhattacharyyaTom P FreemanMichael LynskeyRobin M MurrayMarta Di FortiPublished in: Psychological medicine (2020)
FEP patients are particularly sensitive to increased psychotic-like, but not euphoric experiences, at higher levels of cannabis use compared to controls. This suggests a specific psychotomimetic response in FEP patients related to heavy cannabis use. Clinicians should enquire regarding cannabis related PEs and advise that lower levels of cannabis use are associated with less frequent PEs.