Biological Approach To Explaining OCD Flashcards

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1
Q

What did Lewis find in OCD patients?(inheritance)

A

37% had parents with the disorder and 21% of siblings

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2
Q

What does the diathesis stress model state?

A

Certain genes leave certain people more vulnerable

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3
Q

What are candidate genes?

A

Genes which create the vulnerability - some are important in the development of serotonin system

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4
Q

What is 5HT-D beta gene?

A

It is implicated in the efficiency of transport of serotonin across the synapse

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5
Q

What does polygenic mean?

A

That one gene is not responsible but several are involved

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6
Q

What has Taylor analysed?(polygenic)

A

Findings from previous studies

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7
Q

What has Taylor found?

A

Evidence that 230 genes may be involved

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8
Q

How are there different types of OCD?

A

As one gene may be associated with OCD in one person but another may suffer due to many genes

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9
Q

What does aetiologically heterogenous mean?(different types of OCD)

A

The origin of OCD is due to different causes

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10
Q

What are genes associated with OCD likely to affect?(neural explanation)

A

The key neurotransmitters as well as structures of the brain

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11
Q

What might some cases of OCD be explained by?

A

A reduction in the functioning of the serotonin system in the brain

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