Neurofeedback Training for High Risk Psychosis

Inclusion Criteria: * Case identification and ascertainment depends on the fulfillment of the Criteria of Prodromal States as evaluated using the Structured Interview for Prodromal Syndromes: (1) attenuated positive symptom state which includes the emergence or worsening over the past year of non-psychotic disturbances in thought content, thought process or perceptual abnormality, (2) brief intermittent positive symptoms, and (3) genetic risk and deterioration. * Processing speed at least 0.5 Standard Deviation below the norm, as indexed by baseline performance on Digit Symbol Coding of 8 or below * Age range 12-25 (this age range also comprises the main period of risk for psychosis) * Written informed consent by patients \>18 years old, and written assent by subjects \<18 years old, with written informed consent by both parents (unless one is deceased or unavailable). Participants who turn 18 while in the study will be re-consented as adults through written informed consent. Exclusion Criteria: * Current or past diagnosis of psychotic disorder noted at baseline assessment (schizophrenia, schizophreniform, bipolar, schizoaffective, major depression with psychotic features, substance-induced psychosis, psychosis due to a medical condition. * Neurological, neuroendocrine or major medical disorders: as putative prodromal symptoms could be secondary to these and unrelated to risk for primary psychotic disorders (clinical interview), including seizure disorder and history of si…