Psychological Disorders 2

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Author:
ndumas2
ID:
27681
Filename:
Psychological Disorders 2
Updated:
2010-07-22 16:12:08
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PSYC
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pt2
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  1. What are some symptoms in schizophrenia that normal people lack but the people suffering from it have (Positive symptoms)
    People with schizophrenia have inappropriate symptoms (hallucinations, disorganized thinking, deluded ways) not present in healthty individuals
  2. What are some things people with schizophrenia lack that normal people have (Negative symptoms)
    People with schizophrenia also have absence of appropriate symptoms (apathy, expressionless faces, rigid bodies) present in healthy individuals (negative symptoms).
  3. What is chronic/process schizophrenia
    When schizophrenia is slow to develop recovery is doubtful. These patients usually display more negative symptoms.
  4. Describe acute/reactive schizophrenia
    When schizophrenia rapidly develops recovery is better. These patients usually show more positive symptoms.
  5. Outline some abnormal brain functions and structures associated with schizophrenia, and discuss the possible link between prenatal viral infections and schizophrenia.
    • Abnormalities in Brain Structure and Function:
    • •Dopamine Overactivity: Researchers have found that people with schizophrenia have more dopamine
    • D4 receptors in the brain than healthy adults.
    • • Brain scans show abnormal activity in frontal cortex, thalamus and amygdala.
    • Schizophrenia patients may have enlarged ventricles (fluid-filled areas of the brain).
    • Also, if the fetus was infected with a virus when in the womb this could cause schizophrenia as well
  6. Discuss the evidence for a genetic contribution to the development of schizophrenia.
    • The likelihood of individuals suffering from schizophrenia is 50% if their identical twins have the disease
    • if both parents have it 40%
    • if fraternal twin 20%
    • one parent 15%
    • sibling 10%
    • nephew 5%
  7. Theories of Schizophrenia Development: Viral Infection
    —Schizophrenia has been observed in individuals who contracted a viral infection (flu) during the middle of their fetal development.

    — So, it is thought that prenatal difficulties might contribute to development of schizophrenia in individuals who are genetically predisposed.
  8. Theories of Schizophrenia Development: Psychological Factors
    Psychological and environmental stress can trigger schizophrenia if the individual was genetically predisposed

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