It is especially common in younger males
These persons are very suspicious of others and often have grand schemes of persecution at the root of their behavior. Where delusions and hallucinations are present but thought disorder, disorganized behavior, and affective flattening are absent. Patients with paranoid schizophrenia typically are tense, suspicious, guarded, and reserved. Causes you to fear and believe that people or situations are dangerous to you when they are not. These beliefs can be very powerful and seem real when you are ill. For example, you may be afraid of someone who acts very nice because you fear the person is trying to take advantage of you. Sometimes there is some reason for the fear. For example, you may remember a time when someone was nice but then stole your medicine or money or wanted you to have sex or do something you didn't want to do. Sometimes this extreme fear can lead you to attack other people or destroy property.
Paranoid schizophrenia is manifested primarily through impaired thought processes, in which the central focus is on distorted perceptions or paranoid behavior and thinking. Delusions are in most cases grandiose or persecutory, or both. Delusions may be multiple, but usually organized and coherent. They often form the conclusion that others are "out to get them". This type of schizophrenia is dominated by relatively stable, often paranoid, delusions; this is accompanied by hallucinations, usually auditory, and perceptual disturbances. Disturbances of affect, volition, speech, and catatonic symptoms, are not prominent in this branch of schizophrenia. Often, people who have their first episode of schizophrenia in their late teenage years lose out on a lot of important development. Signs and symptoms of paranoid schizophrenia
The defining feature of paranoid schizophrenia is absurd or suspicious ideas and beliefs. These ideas typically revolve around a coherent, organized theme or “story” that remains consistent over time. Delusions of persecution are the most frequent theme, however delusions of grandeur are also common. People with paranoid schizophrenia show a history of increasing paranoia and difficulties in their relationships. They tend to function better than individuals with other schizophrenic subtypes. In contrast, their thinking and behavior is less disordered and their long-term prognosis is better. Paranoid schizophrenia tends to appear later in life, usually around the age of 25 to 30. The main features are a preoccupation with one or more delusions or frequent auditory hallucinations, but nothing prominent in terms of disorganized speech, flat or inappropriate emotions. The delusional content (the beliefs) of the person with paranoid schizophrenia is marked by grandiosity, or persecution, or both. Onset can be fairly rapid but may be difficult for others to recognize it for what it is. Anger, irritation or argumentative behavior may be the most prominent features, as is extreme jealousy. Russell Crowe's portrayal of the esteemed mathematician Dr John Forbes Nash in, ‘A Beautiful Mind' (2001) provides a dramatized example. In the movie we initially see the world through the eyes of Nash as he is approached by an agent to help in the decoding of sophisticated secret transmissions. We are drawn into thinking that Nash has a special ability to see secret codes where others cannot. His covert work is apparently fraught with danger as he is chased by foreign agents intent on doing him harm, but he must continue as a matter of national security. As the movie progresses we see Nash's world through the eyes of his wife. We see Nash's secret work room covered in notes from floor to ceiling. We watch as Nash takes his decoding to a secret ‘drop' which is no more than a derelict building. We now understand that the agent with whom he has been working and other significant people in his life are hallucinations....
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