Neural explanations

• Some research using PET scans has found that abnormality in the basal ganglia within the brain may be linked to OCD.
• (-) However, basal ganglia damage has not been found in 100% of people with OCD and so cannot be a full explanation for the disorder.
• Max et al found increased rates of OCD in people after head injuries that caused damage to the basal ganglia. In addition, as well as this OCD is often found in people with other diseases which involve the basal ganglia e,g parkinsons. This suggests a link between this region of the brain and OCD