297. Psychometric Reliability of Nonlinear Dynamics in Resting State EEG in Schizophrenia

Brain activity associated with sensory and cognitive processing is inherently nonlinear, and developing biomarkers sensitive to features of nonlinear dynamics (NLD) could identify aspects of schizophrenia (SZ) that traditional linear approaches cannot. The psychometric reliability of NLD has not been investigated in SZ and is required to match clinical interventions with treatment-responsive patient populations. Here, we estimate the reliability of a measure of NLD during rest with EEG and compare it with traditional, linear measures.