 [ Symptoms ] what is meant by positive and negative symptoms of schizophrenia [ Disease ] positive symptoms of schizophrenia are those attributes that are added to the personality such as delusions or hallucinations indicating the person has lost touch with reality in this sense positive does not mean good but instead refers to extra or additional brain activity that should not be there negative symptoms of schizophrenia are those which are indicative of an under functioning personality examples include a lack of emotional input or expression or an inability to socially interact or take pleasure from interactions with others