Cognitive Stimulation

Effects of Cognitive Training in Methadone Maintenance Patients

This research is being done to learn if computer tasks that challenge the brain (cognitively stimulating tasks) can improve memory and other types of thinking. The study will compare the effects of different versions of the computer tasks. It also will compare the task performance of different groups of people.

Inclusion Criteria:

• age 18-55
• in methadone maintenance or healthy volunteers
• healthy

Exclusion Criteria:

• Axis I disorder (except substance abuse and dependence in methadone maintenance patients)
• severe cognitive impairment
• serious untreated medical condition