“…According to the sensorimotor gating concept, PPI is considered as an example of mechanisms that limit sensory information overflow, facilitate selective attention, and enable efficient processing of relevant information. Reductions in PPI have been demonstrated with some consistency in schizophrenia (eg, Braff et al, 1978(eg, Braff et al, , 1992Ludewig et al, 2003a, b;Kumari et al, 2000;Parwani et al, 2000;Quednow et al, 2006), schizotypal personality disorder (Cadenhead et al, 1993(Cadenhead et al, , 2000, and psychotic bipolar mania (Perry et al, 2001). These results contributed to the view that schizophrenia patients suffer from a sensory inundation caused by a general inability to filter out relevant from irrelevant external stimuli automatically (Geyer and Braff, 1987).…”