Background: Due to its impairment in patients with schizophrenia. mismatch negativity (MMN) generation has been identified as a potential biomarker for identifying primary impairments in auditory sensory processing. This study aimed to investigate the dysfunctional differences in different MMN deviants and evoked theta power in patients with first-episode schizophrenia (FES) and chron... https://medicalwarehouses.shop/product-category/reachers/