Impact of Estrogen on Fear Extinction R61

Exclusion Criteria

• •Psychiatric, neurologic or medical condition that would interfere with study procedures or confound results, ascertained by history.
• •History of seizure or significant head trauma (i.e., extended loss of consciousness, neurological sequelae, or known structural brain lesion).
• •History of Axis I psychiatric diagnosis; e.g., history of substance use disorder, psychotic disorder, bipolar disorder, tic disorder, or eating disorder.
• •Use of psychotropic medication within 4 weeks prior to study (within 6 weeks for fluoxetine, or other long-lived compounds; within one year for neuroleptics).
• •Pregnancy (to be ruled out by urine ß-HCG).
• •Metallic implants or devices contraindicating magnetic resonance imaging.
• •Use of oral contraceptives or non-oral contraceptives containing estrogen and progesterone within 3 months
• •History of breast cancer.
• •Allergy to peanut oil.