Brain Health in Breast Cancer Survivors

Inclusion Criteria: * Age 35-65 * Fluent in English * Adequate vision/hearing to complete testing Exclusion Criteria: * History of major or mild neurocognitive disorder or dementia * Diagnosis of major neurological condition (e.g., epilepsy, Parkinson's Disease, stroke) * Diagnosis of a major psychiatric disorder (e.g., bipolar disorder, schizophrenia) * Untreated/unstable unipolar depression or anxiety * Prior history of cancer or chemotherapy (for controls, any history) * History of a learning disorder * History of head injury with loss of consciousness \>20 minutes * History of salpingo-oophorectomy or hysterectomy * A cardiac pacemaker * Implanted electronic device * Claustrophobia * Currently pregnant * Orbital metal implant or other metallic foreign bodies Additional exclusion criteria for controls: current use of a contraceptive agent that interferes with endogenous hormonal fluctuation (e.g., oral contraceptive pill) or precludes determination of menstrual pattern (e.g., hormonally secreting intrauterine device), or current treatment with systemic estrogen replacement therapy.