Using Transcranial Magnetic Stimulation (TMS) to Understand 'Negative' Symptoms of Schizophrenia

Inclusion Criteria: * Age between 18-55 years * At pre-visit screening (see attached phone screening questionnaire): participants must report that they have been given a diagnosis of schizophrenia or schizoaffective disorder by a mental health professional * Must be able to read, speak, and understand English * Must be judged by study staff to be capable of completing the study procedures * Diagnosis of schizophrenia or schizoaffective disorder according to DSM-V criteria and confirmed by SCID * Participants will be in stable outpatient treatment with no recent (within the past 30 days) hospitalizations or changes in their mediation regimens Exclusion Criteria: * DSM-V intellectual disability * substance use disorder within the past three months * Ambidexterity (the EEfRT task assumes participants are not ambidextrous) * Any history of progressive or genetic neurological disorder (e.g. Parkinson's disease, multiple sclerosis, tubular sclerosis, Alzheimer's Disease) or acquired neurological disease (e.g. stroke, traumatic brain injury, tumor), including intracranial lesions * History of head trauma resulting in any loss of consciousness (\>15 minutes) or neurological sequelae * Current history of poorly controlled headaches including chronic medication for migraine prevention * History of fainting spells of unknown or undetermined etiology that might constitute seizures * History of seizures, diagnosis of epilepsy, or immediate (1st degree relative) family history epilepsy …