Ambulatory status (outpatient) at time of consent 
Age 10-55 years 
Clinical diagnosis of Autism Spectrum Disorder 
IQ greater than or equal to 70 
Score greater than 8 on Children's Yale-Brown Obsessive Compulsive Scale 
Free of psychoactive medication for at least: one month for fluoxetine; two weeks for other SSRIs and neuroleptics; and five days for stimulants prior to MRI scanning [excepting stable doses (greater than three months duration) of anticonvulsant medication for seizure disorder] 

NCT00609531_inc_T1
Visit
Ambulatory status
NCT00609531_inc_T2
Visit
outpatient
NCT00609531_inc_T3
Temporal
at time of consent
NCT00609531_inc_T4
Value
10-55 years
NCT00609531_inc_T5
Person
Age
NCT00609531_inc_T6
Condition
Autism Spectrum Disorder
NCT00609531_inc_T7
Measurement
IQ
NCT00609531_inc_T8
Value
greater than or equal to 70
NCT00609531_inc_T9
Measurement
Children's Yale-Brown Obsessive Compulsive Scale
NCT00609531_inc_T10
Value
greater than 8
NCT00609531_inc_T11
Drug
psychoactive medication
NCT00609531_inc_T12
Negation
Free of
NCT00609531_inc_T13
Temporal
at least one month
NCT00609531_inc_T14
Temporal
at least two weeks
NCT00609531_inc_T15
Temporal
at least five days
NCT00609531_inc_T16
Drug
fluoxetine
NCT00609531_inc_T17
Drug
SSRIs
NCT00609531_inc_T18
Drug
neuroleptics
NCT00609531_inc_T19
Scope
SSRIs and neuroleptics
NCT00609531_inc_T20
Drug
stimulants
NCT00609531_inc_T21
Temporal
prior to MRI scanning
NCT00609531_inc_T22
Drug
anticonvulsant medication
NCT00609531_inc_T23
Condition
seizure disorder
NCT00609531_inc_T24
Temporal
greater than three months
NCT00609531_inc_T25
Qualifier
stable doses
NCT00609531_inc_T26
Scope
at least: one month for fluoxetine; two weeks for other SSRIs and neuroleptics; and five days for stimulants
NCT00609531_inc_T27
Negation
excepting
NCT00609531_inc_T28
Qualifier
Clinical diagnosis