For over two decades, cannabis, commonly known as marijuana, has been the most widely
used illicit drug by young people in high-income countries, and has recently become …

Psychiatric comorbidities are common among patients with schizophrenia. Substance abuse
comorbidity predominates. Anxiety and depressive symptoms are also very common …

Setting. Cannabis preparations have been used as a remedy for thousands of years in
traditional medicine. Clinical use of cannabinoid substances is restricted, due to legal and …

Chronic marijuana use during adolescence is frequently comorbid with heavy alcohol
consumption and associated with CNS alterations, yet the influence of early cannabis and …

Morphologic abnormalities of the insular cortex have been described in psychotic disorders
such as schizophrenia, but it remains unclear whether these changes predate the onset of …

BACKGROUND: There is growing evidence that adolescence is a key period for neuronal
maturation. Despite the high prevalence of marijuana use among adolescents and young …

Adult human studies suggest frontal dysfunction associated with chronic marijuana (MJ) use,
but due to continued neuromaturation, adult studies may not generalize to adolescents. This …

Although recreational and medicinal use of cannabis has been known for many centuries, it
is only in recent decades that it has again attracted considerable systematic attention …

Evidence so far indicates the consistent association between brain structural abnormalities
and schizophrenia already present at the early phases of the illness. This study investigates …

It has been consistently shown that ecstasy users display impairments in learning and
memory performance. In addition, working memory processing in ecstasy users has been …