Clinical Research Directory

PMS/PMDD Study: Inclusion Criteria: * Assigned female at birth * Age 18 to 45 * Naturally cycling * Regularly occurring menstrual cycle * Must identify as having PMS or PMDD * Reliable ability to complete online study surveys Exclusion Criteria: * Using hormonal birth control * Pregnant or lactating/breastfeeding * History of seizures * Implanted devices * Current or previous diagnosis of any heart conditions * Abnormal ear anatomy * Non-removable piercings on the ear * Recent ear infection * Taking SSRIs * Taking steroids * Taking hormone therapy * If the participant anticipates starting or stopping prescription medications during the study period * Participant has a history of neurologic diseases (i.e. stroke, brain tumor, cerebrovascular, etc.) * Participant has a history traumatic brain injury within the past 12 months * Must not have any other mental illness or mood disorder Perimenopause Study: Inclusion Criteria: * Assigned female at birth. * Age 40 to 55 * Must have newly variable menstrual cycles or report identifying as perimenopausal * Reliable ability to complete online study surveys Exclusion Criteria: * Using hormonal birth control * Pregnant or lactating/breastfeeding * History of seizures * Implanted devices * Current or previous diagnosis of any heart conditions * Abnormal ear anatomy * Non-removable piercings on the ear * Recent ear infection * Taking SSRIs * Taking steroids * Taking hormone therapy * If the participant anticipates starting or stopping prescription medications during the study period. * Participant has a history of neurologic diseases (i.e. stroke, brain tumor, cerebrovascular, etc.) * Participant has a history traumatic brain injury within the past 12 months * have a hysterectomy In both studies we will confirm that participants are symptomatic shortly following enrollment.