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Biological Theory
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Created by
Molly Tanod
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Cards (24)
What part of the brain is involved in the limbic system?
Hippocampus
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What role does the hippocampus play in the brain?
Formation of
memories
and emotions
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How does the size of the hippocampus relate to schizophrenia?
It is smaller in people with schizophrenia
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What negative symptoms of schizophrenia may be explained by hippocampal size?
Lack of emotion
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What is the
volume
change observed in the
temporal
lobes
of people with
schizophrenia
?
Lower in volume
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What is the significance of the temporal lobe in relation to auditory information?
It
processes
auditory
information
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How does the lack of gray matter in the temporal lobe relate to hallucinations?
It
may
explain
auditory hallucinations
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What does gray matter contain?
Nerves
and connections
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What is the effect of restricted blood flow in the frontal cortex?
Less frequent
activation
during tasks
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What is the role of the prefrontal cortex in psychological functioning?
It acts as the
'control center'
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How might the prefrontal cortex's function explain organizational struggles in schizophrenia?
It may lead to
loss of control
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What is a criticism of the biological theory of schizophrenia regarding nature and nurture?
It ignores the
effect of nurture
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What does it mean that the biological theory is too deterministic?
Behavior is solely influenced by
biology
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What is a limitation of the biological theory regarding its reductionist approach?
It oversimplifies the causes of
schizophrenia
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What does the biological theory state about behavior determinants?
It is determined by
internal factors
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What is a limitation of determining cause and effect in schizophrenia research?
We only study brains
post-diagnosis
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What is a pessimistic outlook of the biological theory on schizophrenia?
Individuals have
no control
over their disorder
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What factors should be analyzed to understand schizophrenia?
Multiple
factors and their interactions
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How might brain structure and function change in relation to schizophrenia?
They may change after
triggering events
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What is the relationship between dopamine and hallucinations in schizophrenia?
Too much
dopamine
leads to
hallucinations
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What happens to dopaminergic neurons in schizophrenia?
They fire too easily
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What is the role of presynaptic receptors in dopamine transmission?
They absorb
excess dopamine
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What is the process of synaptic transmission?
Presynaptic vesicles
release
neurotransmitters
Neurotransmitters cross the
synaptic gap
Bind to receptors on the postsynaptic cell
Trigger response in the
postsynaptic neuron
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What are the criticisms of the biological theory of schizophrenia?
Focuses only on
nature
, ignoring
nurture
Too
deterministic
, neglecting external factors
Reductionist
, oversimplifying causes of disorder
Ignores
environmental influences
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