Paraphrenia is a mental disorder characterized by an organized system of paranoid delusions with or without hallucinations (the positive symptoms of schizophrenia) and without deterioration of intellect or personality (its negative symptom).

What does schizophrenia do to a person?

Schizophrenia is a serious mental disorder in which people interpret reality abnormally. Schizophrenia may result in some combination of hallucinations, delusions, and extremely disordered thinking and behavior that impairs daily functioning, and can be disabling.

What does a psychotic person do?

Psychosis is characterized as disruptions to a person's thoughts and perceptions that make it difficult for them to recognize what is real and what isn't. These disruptions are often experienced as seeing, hearing and believing things that aren't real or having strange, persistent thoughts, behaviors and emotions.