Restoring Spindle and Thalamocortical Efficiency in Early-Course Schizophrenia Patients Using Auditory Stimulation

This study is examining sleep brain wave patterns (specifically "sleep spindles") in people with early-course schizophrenia to better understand how the brain reorganizes itself during sleep and whether those patterns differ from healthy people. This is a research study, not a treatment trial. **You may be eligible if...** - You are 18 to 40 years old - You have a diagnosis of schizophrenia, schizophreniform disorder, or schizoaffective disorder for 5 years or less - You have been on antipsychotic medications for 5 years or less - OR you are a healthy volunteer with no personal or close family history of psychosis or mood disorders with psychosis **You may NOT be eligible if...** - You have an intellectual disability, significant brain injury, or seizure disorder - You are pregnant or recently postpartum (within 6 weeks) - You currently have or recently had alcohol or substance dependence - You are a healthy volunteer with regular sleep problems or a sleep disorder Talk to your doctor to see if this trial is right for you.