schizophrenia definition psychology
Schizophrenia is a serious mental illness characterized by incoherent or illogical thoughts, bizarre behavior and speech, and delusions or hallucinations, such as hearing voices.Schizophrenia typically begins in early adulthood. Adapted from the Encyclopedia of Psychology.chizophrenia can cause hallucinations, delusions and unusual behaviors, as well as cognitive challenges, such as problems with memory, attention and concentration.