Rapid Eye Movement Restoration and Enhancement for Sleep-deprived Trauma-adaptation

Inclusion Criteria:

• Adults aged 18-50 years

• Medically healthy

• English-speaking (able to provide consent and complete questionnaires)

• Citizen or holding permanent resident status

• Regular napper (1 or more naps per week)

Exclusion Criteria:

• Any current or past history of neurological disorders or acquired neurologicaldisease (e.g. stroke, traumatic brain injury), including intracranial lesions

• History or head trauma resulting in prolonged loss of consciousness; or a history of >3 grade 1 concussions

• Current history of poorly controlled headaches including intractable or poorlycontrolled migraines

• Any systemic illness or unstable medical condition that may cause a medicalemergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia,asthma, etc)

• History of seizures, diagnosis of epilepsy, histoy of abnormal (epileptiform) EEG,or family history of treatment resistant epilepsy with the exception of a singleseizure of benign etiology (e.g. febrile seizures) in the judgment of aboard-certified neurologist

• Possible pregnancy or plan to become pregnant in the next 6 months

• Any metal in the body

• Any medical devices or implants (i.e. cardiac pacemaker, medication infusion pump,cochlear implant, vagal nerve stimulator) unless otherwise approved by theresponsible MD

• Dental implants containing metal

• Any medication that may alter seizure threshold: ADHD stimulants (Adderall,amphetamine); tricyclic/stypical antidepressants (amitriptyline, doxepine,imipramine, maprotiline, nortriptyline, buproprion); antipsychotics (chlorpromazine,clozapine); bronchodilators (theophylline, aminophylline); antibiotics (fluoroquinolones, imipenem, penicillin, cephalosporins, metronidazole, isoniazid);Antivirals (valacyclovir, ritonavir); OTC antihistamines (diphenhydramine, Benadryl)

• Claustrophobia (a fear of small or closed places)

• Back problems that would prevent lying flat for up to two hours

• Regular night-shift work (second or third shift)