['autism', 'autism spectrum disorder']
['8 international units (iu) of oxytocin', '24iu of oxytocin', '48iu of oxytocin', 'placebo']

        Inclusion Criteria for ASD Participants:

          -  Have an ASD diagnosis based on the Autism Diagnostic Observation Schedule (ADOS) and
             Autism Diagnostic Interview (ADI) criteria, gold standards of research-based autism
             diagnosis

          -  Intelligence quotient (IQ) > 70

          -  Normal or corrected-to-normal vision

        Exclusion Criteria for ASD Participants:

          -  Recent occurrence of seizures (past 5 years)

          -  Brain damage or head trauma (can be included at discretion of PI and sponsor)

          -  Color blind

          -  Cardiovascular disease

          -  Presence of a severe medical problem

          -  Severe mental retardation

          -  Alcoholism or substance abuse

          -  Asthma (can be included at the discretion of study physician/nurse practitioner if
             episodes are infrequent and no active problems at time of the study)

          -  Migraine headaches (at the discretion of the nurse practitioner or the study
             physician)

          -  Claustrophobia (at discretion of study physician/designee/PI)

          -  Pacemakers, cochlear implants, surgical clips or metal fragments

        Inclusion Criteria for Healthy Age-Matched Controls:

          -  IQ > 70

          -  Normal or corrected-to-normal vision

        Exclusion Criteria for Healthy Age-Matched Controls:

          -  History of seizures

          -  Neurological disorder

          -  Current psychiatric disorder

          -  Previous psychiatric disorder (can be included at discretion of PI)

          -  Current use of psychoactive drugs

          -  Previous use of psychoactive drugs (can be included at discretion of PI)

          -  Head trauma (can be included at discretion of PI)

          -  Alcoholism or substance abuse

          -  Cardiovascular disease

          -  Color blind

          -  Asthma (can be included at the discretion of study physician/nurse practitioner if
             episodes are infrequent and no active problems at time of the study)

          -  Migraine headaches (at the discretion of the nurse practitioner or the study
             physician)

          -  Claustrophobia (at discretion of study physician/designee/PI)

          -  Presence of a severe medical problem

          -  Severe mental retardation

          -  Pacemakers, cochlear implants, surgical clips or metal fragments
      