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Questions and Answers
The lifetime prevalence of schizophrenia is around __________ percent. a) 5 b) 1 c) 3 d) 7
The lifetime prevalence of schizophrenia is around __________ percent. a) 5 b) 1 c) 3 d) 7
Symptoms of schizophrenia have been classified as:
Symptoms of schizophrenia have been classified as:
An exaggerated sense of importance, power, knowledge, or identity is known as a:
An exaggerated sense of importance, power, knowledge, or identity is known as a:
Sensory experiences in the absence of any relevant stimulation from the environment are called:
Sensory experiences in the absence of any relevant stimulation from the environment are called:
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Among those with schizophrenia who suffer from delusions, a large majority experience:
Among those with schizophrenia who suffer from delusions, a large majority experience:
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Which of the following are examples of negative symptoms of schizophrenia?
Which of the following are examples of negative symptoms of schizophrenia?
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James finds it difficult to experience pleasure from activities that he enjoyed before his symptoms began. This is an example of:
James finds it difficult to experience pleasure from activities that he enjoyed before his symptoms began. This is an example of:
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James flails his limbs wildly with excitement. This is most appropriately labeled as:
James flails his limbs wildly with excitement. This is most appropriately labeled as:
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Emil Kraepelin and __________ initially formulated the concept of schizophrenia.
Emil Kraepelin and __________ initially formulated the concept of schizophrenia.
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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?
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?
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The concordance rate of schizophrenia for fraternal twins is about:
The concordance rate of schizophrenia for fraternal twins is about:
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In regard to studies identifying chromosomal locations of genes involved in schizophrenia, which statement is correct?
In regard to studies identifying chromosomal locations of genes involved in schizophrenia, which statement is correct?
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Which of the following suggests that dopamine receptors are mainly related to positive (not negative) symptoms of schizophrenia?
Which of the following suggests that dopamine receptors are mainly related to positive (not negative) symptoms of schizophrenia?
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A consistent brain abnormality found among people with schizophrenia is:
A consistent brain abnormality found among people with schizophrenia is:
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In people with schizophrenia, the amount of gray matter in the temporal and frontal cortexes is:
In people with schizophrenia, the amount of gray matter in the temporal and frontal cortexes is:
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Which of the following have been proposed as likely contributors to the reductions in hippocampal volume observed in people with schizophrenia?
Which of the following have been proposed as likely contributors to the reductions in hippocampal volume observed in people with schizophrenia?
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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.
Studying That Suits You
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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!
