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Schizophrenia quiz

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  • What is schizophrenia characterized by?
    Schizophrenia is characterized by significant disturbances in thought, perception, emotion, and behavior.
  • What are the three main categories of symptoms in schizophrenia?
    The three main categories are positive symptoms, negative symptoms, and disorganized symptoms.
  • What are hallucinations in the context of schizophrenia?
    Hallucinations are perceptual experiences that occur without any external stimuli, most commonly auditory.
  • What are delusions and what are two common types seen in schizophrenia?
    Delusions are persistent beliefs contrary to reality; common types include grandiose and paranoid delusions.
  • How do positive symptoms differ from negative symptoms in schizophrenia?
    Positive symptoms add abnormal experiences or behaviors, while negative symptoms involve a loss of normal behaviors or emotions.
  • What are some examples of negative symptoms in schizophrenia?
    Examples include emotional flatness, apathy, decreased speech, and loss of self-care.
  • What is disorganized speech in schizophrenia?
    Disorganized speech is a disruption in verbal skills, resulting in illogical or nonsensical language.
  • What is catatonic behavior in schizophrenia?
    Catatonic behavior involves a loss of movement, where a person may freeze in an unusual position for a long time.
  • What is the typical age of onset for schizophrenia?
    Schizophrenia usually begins between ages 18 and 35, often in the late teens to mid-twenties.
  • What is the lifetime prevalence of schizophrenia in the population?
    Schizophrenia affects about 0.5% of the population.
  • What is required for a diagnosis of schizophrenia according to the discussed criteria?
    Typically, two or more symptoms must persist for over one month, with signs lasting at least six months.
  • What evidence supports the genetic component of schizophrenia?
    Adoption and twin studies show schizophrenia is highly heritable, though no specific gene has been identified.
  • How does stress relate to the development of schizophrenia?
    Stress, especially early in life or within the family, is associated with higher rates of schizophrenia.
  • What brain abnormalities are associated with schizophrenia?
    Schizophrenia is linked to excessive synaptic pruning and enlarged brain ventricles, both leading to reduced gray matter.
  • What prenatal and birth complications are associated with increased risk for schizophrenia?
    Maternal infections, malnutrition, stress during pregnancy, and lack of oxygen during birth are associated with higher risk.