Transcranial Electrical Stimulation (TES) at Slow Oscillation (SO) Frequency During NREM Sleep
Trial Parameters
Brief Summary
The purpose of this study is to determine if the enhancement of electroencephalographic (EEG) slow-wave activity using transcranial electrical stimulation (TES) at Slow Oscillation (SO) frequency, during a restricted period of nocturnal sleep, enhances the restorative properties of that period of sleep and improves performance during a subsequent period of sleep deprivation.
Eligibility Criteria
Inclusion Criteria: * Healthy men and non-pregnant, non-lactating women 18 to 39 years of age (inclusive) * Must demonstrate adequate comprehension of the protocol, by achieving a score of at least 80% correct on a short multiple-choice quiz. Individuals who fail to achieve a passing score on the initial quiz will be given one opportunity to retest after a review of protocol information. Individuals who fail the comprehension assessment for the second time will be disqualified. Exclusion Criteria: * Self-reported habitual nightly sleep amounts outside the target range of 6 - 9 hours (i.e., less than 6 hours per night or more than 9 hours per night, on average) (Post-consent Checklist) * Self-reported nighttime lights-out times earlier than 2100 hours on average during weeknights (Sunday through Thursday) or later than 2300. (Post-consent Checklist) * Self-reported morning wake-up times later than 0800 on average during weekdays (Monday through Friday) (Post-consent Checklist) * Self-re