Massachusetts General Hospital
This pilot study in healthy volunteers aims to determine if biological sex has an impact on recovery from dexmedetomidine-induced unconsciousness, and if transcranial magnetic stimulation combined with electroencephalography (TMS-EEG) can be used to measure brain complexity during dexmedetomidine sedation without arousing study participants.
Inclusion Criteria: * Between the ages of 18 to 65 * Normal body weight and habitus, body mass index (BMI) 18 to 30 kg/m2 * Non-smoker * No history of taking stimulants or substance abuse * For women: either use of hormonal contraception, or \> 45 years old and last menstrual period \> 12 months ago in the absence of any contraceptives. * American Society of Anesthesiologists (ASA) physical status classification 1 (ASA 1) * Fluent in English (sufficient to communicate with the study team and understand the consent form) Exclusion Criteria: * Neurologic: epilepsy or positive history of a sei…
Transcranial magnetic stimulation of the cerebral cortex and measurement of TMS-evoked potentials in the EEG.
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