The associations of cannabis and methamphetamine use with cognitive performance over the first 2 years of treatment in schizophrenia spectrum disorders.
Freda SchefflerLebogang PhahladiraChanellé B HendrikseStefan du PlessisLaila AsmalHilmar Klaus LuckhoffAnna Margaretha SmitM Riaan OlivierRobin EmsleyPublished in: Early intervention in psychiatry (2022)
Our findings suggest a negative association between methamphetamine and cognition, but not cannabis.