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Major Types of Schizophrenia
Catatonic schizophrenia - In this case, the person is extremely withdrawn, negative and isolated, and has marked psychomotor disturbances.
Disorganized schizophrenia - In this case the person can be verbally incoherent and may have moods and emotions that are not appropriate to the situation. Hallucinations are not usually present.
Paranoid schizophrenia - People with paranoid schizophrenia are very suspicious of others and often have grand schemes of persecution at the root of their behavior. Hallucinations and delusions are prominent.
Residual schizophrenia - In this case the person is not currently suffering from delusions, hallucinations, or disorganized speech and behavior, but lacks motivation and interest in day-to-day living.
Schizoaffective disorder - People with schizoaffective disorder have symptoms of schizophrenia as well as mood disorder such as major depression, bipolar mania, or mixed mania.
Causes of
Schizophrenia
There is no known single cause of
schizophrenia, although research is focused on several factors believed to
contribute to its development. These factors include genetics (heredity),
chemical imbalance, and complications during pregnancy and birth. Schizophrenia
is known to run in families, and people who have a close relative with
schizophrenia are more likely to develop this illness than those who do not.
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Symptoms in Schizophrenia |
Schizophrenia is a severe and major psychotic disorder with significant impairment in mental functioning and loss of contact with reality. Besides the patient his/herself, there are also devastating consequences for the patient’s family and close surrounding.
The age of onset tends to be in late adolescence or early adulthood. Since this
most often is a period in life which is associated with considerable personal,
academic and professional change and challenges, individuals who develop
schizophrenia may be placed at social and economic risk.
Risk Factors
The lifetime risk of developing schizophrenia is about 1 per cent. Approximately equal numbers of men and women are affected, but there is normally an earlier onset in men.
According to epidemiological studies there is no significant geographical
variation, but there is a slight tendency towards an increased risk for babies
which are born during the spring and winter months. Environmental pathogens such
as viruses may contribute to developing schizophrenia, as do obstetric
complications. In addition a hereditary linkage for the disease has been proven.
Psychosocial influences from traumatic life events and interactions within the
family also appear to be of importance.
Behavioral Symptoms
The psychological symptoms seen in different cases of schizophrenia are similar but may vary in form, severity, and persistence. Certain symptoms may be expressed in one patient, but absent in another. The interference of the disease with the individual’s daily life may be either light enough to lead a fairly normal life, or in some cases the patient needs to be hospitalized. This heterogeneity sometimes contributes to diagnostic problems. There are however rules for the diagnosis and definition of the symptoms seen in schizophrenic patients. Below is a list of the most common groups of symptoms.
Thought Disorder
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Loosening of the structure and coherence of thought | |
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Lack of logical connections between topics when speaking, which makes it hard for the listener to follow the conversation | |
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Blocking, slowing or poverty of thought, which that may lead to reduction of speech |
Abnormal Thought Content, Beliefs or Delusions
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Delusions of persecution where the patient believes he or she is followed or the subject of elaborate plots | |
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Delusions of reference and control, where commonplace events and situations are of individual significance and take place in relation to the individual | |
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Delusions about the possession of thought, which may include the belief that the patients thoughts are not under his or her control, that thoughts do not originate from the self and that others can pick up or insert thoughts in the patients mind |
Abnormal Experiences or Perceptual Disturbances
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Often in the form of hallucinations, where the patient hears or sees things that are not real | |
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Auditory hallucinations, which are most commonly associated with schizophrenia, with the patient’s own thought spoken out loud or others commenting on the patients actions | |
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Visual, olfactory and tactile hallucinations |
Mood Disorders
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Mood alterations | |
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Depression, anxiety, aggressiveness, excitement and facile euphoria | |
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Disconnection between mood and other aspects of functioning, which may result in expression of different moods inappropriately, for instance laughter when telling an obviously sad story | |
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Blunting or flattening of affect (the outward expression of mood) |
Motor Alterations
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Increased motor function with restlessness or over-activity | |
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Reduced function resulting in immobility of the patient | |
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Stereotypic repetitive movement or bizarre gesturing |
Changes in Social Function
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Isolation, gradual withdrawal from social interaction, which often affect work or study performance | |
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Poor self-care | |
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Permanent change in underlying personality |
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| Overview of Schizophrenia from www.schizophrenia.com | |||||||||||
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