Adult attention deficit hyperactivity disorder and other psychiatric symptoms in recreational polydrug users.

Aims: Previous research has shown that recreational drug use is associated with more psychiatric symptoms and psychobiological distress. This study investigated whether symptoms of adult attention deficit hyperactivity disorder (ADHD) were also raised in polydrug users.

Methods: We assessed a non-clinical sample of 84 unpaid volunteers (mean age 27.

Assessing the functional significance of ecstasy-related memory deficits using a virtual paradigm.

Rationale/objectives: Previous research shows that the use of ecstasy results in working memory and executive impairments in some users. The present study sought to assess the functional significance of such deficits using a virtual reality task.

Methods: Twenty-three ecstasy-polydrug users and 26 nonusers were recruited.