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Psychopathology - Psychology
OCD
Biological explanation of OCD
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Cards (11)
What role do genes play in OCD according to the biological approach?
Genes
are
involved
in
individual
vulnerability
to
OCD.
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What did Lewis (1936) find regarding the family history of his OCD patients?
37%
of his OCD patients had parents with OCD and
21%
had siblings with OCD.
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What does the observation by Lewis (1936) suggest about OCD?
OCD runs in families, indicating
genetic
vulnerability rather than certainty of OCD.
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What is the diathesis-stress model in relation to OCD?
Certain
genes
increase the likelihood of developing OCD, but environmental stress is needed to trigger it.
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What are candidate genes?
Candidate genes are those identified by researchers that create vulnerability for
OCD
.
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How do some candidate genes relate to OCD?
Some candidate genes are involved in regulating the development of the
serotonin system
.
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What does it mean that OCD is polygenic?
OCD is caused by a combination of
genetic
variations that increase vulnerability.
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What did Taylor (2013) find regarding the number of genes involved in OCD?
Taylor found evidence that up to
230
different genes may be involved in OCD.
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Which neurotransmitters are associated with genes studied in relation to OCD?
Dopamine
and
serotonin
are the neurotransmitters involved in regulating mood related to OCD.
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What does it mean that OCD is aetiologically heterogeneous?
It
means
the
origins
of
OCD
differ
from
person
to
person.
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What evidence suggests that different types of OCD may arise from genetic variations?
There is evidence indicating that different genetic variations may lead to different types of OCD.
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