The biological approach to explaining OCD

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What is the biological approach?
This believes that humans are biological organisms
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What is a genetic explanation?
When a gene is inherited from your parentd
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How does the COMT gene contribute to OCD?
It regulates the production of the neurotransmitter Dopamine. It has been found that Dopamine is more common in patients with OCD.
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How does the SERT gene contribute to OCD?
This affects the transport of Serotonin around the body which means there are lower level of this neurotransmitter around the body. These are seen in OCD patients.
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What is a neaural explanation of OCD?
This is a link between neurotransmitters and reasons for OCD
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What do Abnormal levels of neurotransmitters do?
High levels of dopamine in OCD, is linked to compulsive behaviours in animal studies. Low levels of serotonin in OCD, antidepressants that increase serotonin are most effective.
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How do abnormal brain circuits effect OCD?
Parts of the frontal lobe are thought to be abnormal in people with OCD. Serotonin and Dopamine are linked to activity in these parts of the frontal lobe.
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EVALUATION: Family and twin studies
You have a 5 times more risk of getting OCD if your relatives have OCD. You are twice as more likely to get OCD if your identical twin has OCD.
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Card 2

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What is a genetic explanation?

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When a gene is inherited from your parentd

Card 3

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How does the COMT gene contribute to OCD?

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Card 4

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How does the SERT gene contribute to OCD?

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Card 5

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What is a neaural explanation of OCD?

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