Schizophrenia (SCZ) and psychotic bipolar disorder (PBD) share considerable overlap in clinical features, genetic risk factors and co-occurrence among relatives. The common and unique functional cerebral deficits in these disorders, and in unaffected relatives, remain to be identified.

Lui S, Yao L, Xiao Y, Keedy SK, Reilly JL, Keefe RS, Tamminga CA, Keshavan MS, Pearlson GD, Gong Q, Sweeney JA. Resting-state brain function in schizophrenia and psychotic bipolar probands and their first-degree relatives.  Psychological Medicine, 2015; 45(1): 97-108.