Psychology Chapter 9 Flashcards
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Questions and Answers

The lifetime prevalence of schizophrenia is around __________ percent. a) 5 b) 1 c) 3 d) 7

  • 5
  • 3
  • 1 (correct)
  • 7
  • Symptoms of schizophrenia have been classified as:

  • Organized, positive, and negative
  • Positive, negative, and disorganized (correct)
  • Organized, disorganized, and negative
  • Positive, neutral, and negative
  • An exaggerated sense of importance, power, knowledge, or identity is known as a:

  • None of these other answers are correct
  • Grandiose delusions (correct)
  • Hallucinations
  • Ideas of reference
  • Sensory experiences in the absence of any relevant stimulation from the environment are called:

    <p>Hallucinations</p> Signup and view all the answers

    Among those with schizophrenia who suffer from delusions, a large majority experience:

    <p>Delusions of persecution</p> Signup and view all the answers

    Which of the following are examples of negative symptoms of schizophrenia?

    <p>Flat affect, lack of initiative</p> Signup and view all the answers

    James finds it difficult to experience pleasure from activities that he enjoyed before his symptoms began. This is an example of:

    <p>Anhedonia</p> Signup and view all the answers

    James flails his limbs wildly with excitement. This is most appropriately labeled as:

    <p>Catatonia</p> Signup and view all the answers

    Emil Kraepelin and __________ initially formulated the concept of schizophrenia.

    <p>Eugen Bleuler</p> Signup and view all the answers

    Howard developed elaborate delusions about his ability to communicate with his wife's spirit following a psychotic episode. What DSM-5 diagnosis would fit Howard's case?

    <p>Brief psychotic disorder</p> Signup and view all the answers

    The concordance rate of schizophrenia for fraternal twins is about:

    <p>12%</p> Signup and view all the answers

    In regard to studies identifying chromosomal locations of genes involved in schizophrenia, which statement is correct?

    <p>The results of these studies are simply too varied to justify any firm conclusions</p> Signup and view all the answers

    Which of the following suggests that dopamine receptors are mainly related to positive (not negative) symptoms of schizophrenia?

    <p>Antipsychotic drugs reduce only positive symptoms</p> Signup and view all the answers

    A consistent brain abnormality found among people with schizophrenia is:

    <p>Enlarged ventricles</p> Signup and view all the answers

    In people with schizophrenia, the amount of gray matter in the temporal and frontal cortexes is:

    <p>Less than normal</p> Signup and view all the answers

    Which of the following have been proposed as likely contributors to the reductions in hippocampal volume observed in people with schizophrenia?

    <p>Stress reactivity and a disrupted HPA axis</p> Signup and view all the answers

    Study Notes

    Schizophrenia Overview

    • Lifetime prevalence of schizophrenia is approximately 1%.
    • Symptoms classified into three categories: positive, negative, and disorganized.

    Types of Symptoms

    • Positive Symptoms: Include hallucinations and delusions.
    • Negative Symptoms: Examples are flat affect and lack of initiative.

    Delusions and Hallucinations

    • Grandiose Delusions: Exaggerated sense of importance, power, or identity.
    • Hallucinations: Sensory experiences occurring without environmental stimuli.
    • Delusions of Persecution: Common among those with delusions related to schizophrenia.

    Specific Symptoms and Conditions

    • Anhedonia: Inability to experience pleasure from previously enjoyed activities.
    • Catatonia: Motor dysregulation, such as flailing limbs.
    • Psychotic Episode: Brief psychotic disorder characterized by hallucinations and delusions that resolve within a week.

    Genetic and Biological Factors

    • Concordance rate for schizophrenia in fraternal twins is around 12%.
    • Research indicates varied chromosomal locations involved in schizophrenia, with no firm conclusions drawn.
    • Dopamine receptors primarily associated with positive symptoms, as antipsychotic drugs alleviate these symptoms only.
    • Enlarged brain ventricles are a consistent abnormality found in individuals with schizophrenia.
    • Individuals with schizophrenia display reduced gray matter in the temporal and frontal cortexes.

    Contributing Factors

    • Reduced hippocampal volume in schizophrenia linked to stress reactivity and disrupted HPA axis.

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    Description

    Test your knowledge on schizophrenia with these flashcards from Psychology Chapter 9. This quiz includes multiple-choice questions about prevalence rates and symptom classifications. Perfect for students studying abnormal psychology!

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