A century of sensory processing dysfunction in schizophrenia

Abstract

Approximately 100 years ago, Bleuler famously declared that “Sensory response to external stimulus is quite normal” in schizophrenia, followed however by the cryptic statement: “Busch and Kraepelin have found in perception experiment (using the shutter and revolving drum apparatus) that schizophrenics show many more errors and particularly omissions than do the healthy … Using accurate apparatus, we were unable to substantiate these findings”.