Brain Effects of Escitalopram and Citalopram Using fMRI

Exclusion Criteria

• •Meets DSM-IV criteria for an Axis I or II disorder.
• •History of substance dependence or abuse within the past month.
• •Use of NSAID's, beta blockers, calcium channel blockers, antidepressants, antipsychotic medications, lithium or other medication which in the opinion of the investigator would alter vascular responsivity.
• •Regular use of sedative hypnotic or narcotic medication, or other medication that might affect the individual's perception of visual stimuli.
• •History of cataracts or significant visual impairment.
• •A medical condition, which in the opinion of the investigator is likely to affect the individual's perception of the visual stimuli or vascular response.
• •Participation in a research protocol that included administration of medication within the past 3 months.
• •Cigarette smoking.