Inclusion Criteria:  Diagnosis of bipolar disorder I or II, schizoaffective disorder, or schizophrenia Willingness to participate in study procedures  Exclusion Criteria:  History of neurological illness or injury (e.g., stroke) History of loss of consciousness Diagnosed intellectual disability Current substance use disorder Current mania or moderate depression or severe psychosis Current serious suicidal ideation/behavior Pregnant or trying to become pregnant, or currently lactating