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WorksheetsBiological explanation of Schizophrenia
Total questions: 13
Worksheet time: 7mins
What are family studies?
Close family members are compared on the same trait to determine a genetic basis
Twins are compared on the same trait to determine a genetic basis
Adopted children are compared to their biological family on the same trait to determine a genetic basis.
What term is being described: the proportion of pairs where both individuals share a certain characteristic.
Coordination rate
Concordance rate
Cooperation rate
According to Gottesman (1991) what percentage of MZ twins had severe Schizophrenia?
12-28%
75-91%
17-33%
85-97%
What is meant by 'candidate genes'?
A genetic mutation is responsible for the disorder
Genes have nothing to do with the onset of the disorder
Multiple genes are responsible for a disorder
A single gene is responsible for a disorder
What is meant by a neural correlate?
A particular area of the brain is associated with a particular behaviour
A particular area of the brain is not associated with a particular behaviour
A particular gene is associated with a certain behaviour
Which statement best describes the neurotransmitter dopamine?
It is an inhibitory neurotransmitter
It is an excitatory neurotransmitter associated with the pleasure response
It is associated with the sleep-wake cycle
What does the dopamine hypothesis state about the onset of Schizophrenia?
The brain of SZ patients produce no dopamine
The brain of SZ patients produces different levels of dopamine compared to non SZ patients.
The brain of SZ patients produces different levels of serotonin compared to non SZ patients
The brain of SZ patients produce no serotonin
What did the original dopamine hypothesis propose?
High levels of dopamine in the subcortex
High levels of dopamine in the brain stem
Low levels of dopamine in the subcortex
High levels of dopamine in the cortex
What did the more recent dopamine hypothesis focus on?
High levels of dopamine in the subcortex
High levels of dopamine in the brain stem
Low levels of dopamine in the cortex
High levels of dopamine in the cortex
According to the original dopamine hypothesis, too high levels of dopamine in Broca's area could be associated with what symptom of Schizophrenia?
Hallucinations
Speech Poverty
Avolition
Delusions
Low levels of dopamine in the ventral striatum is associated with what negative symptom of Schizophrenia?
Hallucinations
Delusions
Avolition
Speech poverty
Low levels of dopamine activity in which area of the brain is linked to auditory hallucinations?
Ventral striatum
Superior temporal gyrus
Cortex
Subcortex
What is a problem with the neural correlates explanation?
Evidence regarding which genes are involved in SZ is too diverse
It relies on brain scanning evidence
Correlation-causation problem
