Effects of Drugs on Responses to Brain and Emotional Processes

Effects of MDMA on Responses to Affective Touch in Individuals With a Range of Autistic Traits

To study the effects of a psychostimulant on responses to affective touch in individuals with a range of autistic traits

Inclusion Criteria:

• BMI between 19 and 30 (no one under 130 lbs)
• Smokers smoking less than 25 cigarettes per week
• Have used ecstasy no more than 40 times with no adverse responses.

Exclusion Criteria:

• High blood pressure
• Any medical condition requiring regular medication
• Individuals with a current (within the last year) DSM-IV Axis 1 diagnosis
• Individuals with a history of dependence on stimulant drugs.
• Women who are pregnant or trying to become pregnant