Evaluation of Biological Explanations of OCD

How many more times are people with a first degree relative of an OCD sufferer likely to have OCD themselves?

• 4 times

• 5 times

• 6 times

• 7 times

How many studies were used in the meta analysis review of concordance rates in twins

• 11

• 12

• 13

• 14

How many more times higher were the concordance rates in identical twins compared to non identical twins for OCD?

• two times

• three times

• four times

• five times

What did MRI scans reveal about the OFC? Select as many answers which apply.

• Increased grey matter

• Reduced grey matter

• Abnormal activity

• Normal activity

What practical applications does research into OCD having biological causes have? Select the answers which apply

• Gene therapy could allow OCD to not be expressed

• Genes could be removed

• Symptoms could be removed

• future brain scans can detect the risk of OCD

Concordance rates for OCD not being 100% show there must be environmental factors causing OCD

• True

• False

Which term is used to describe how environmental and biological factors may interact to cause OCD?

• Diameter-stress

• Diathesis-stress

• Disorganised- stress

• Diurnal-stress

Evidence from twin studies can establish cause (faulty genes/neurotransmitters) and effect (OCD)?

• True

• False

Why are biological explanations of OCD reductionist? Select as many answers which apply

• It's possible associations between dirt (NS) and the feeling of anxiety cause obsessions

• They assume OCD is caused by genes

• They assume OCD is caused by neural factors

• They overlook environmental factors

ERP is a behavioural treatment for OCD. Which other therapy is it similar to?

• CBT

• Systematic desensitisation

• Hypnosis

• Flooding