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Brain pattern associated with genetic risk of obsessive compulsive disorder
Date:11/26/2007

unded, volunteers had to attempt to stop their responses. This task objectively measured the ability to stop repetitive behaviours.

Both OCD patients and their close relatives fared worse on the computer task than the control group. This was associated with decreases of grey matter in brain regions important in suppressing responses and habits.

Lara Menzies, in the Brain Mapping Unit at the University of Cambridge, explains, Impaired brain function in the areas of the brain associated with stopping motor responses may contribute to the compulsive and repetitive behaviours that are characteristic of OCD. These brain changes appear to run in families and may represent a genetic risk factor for developing the condition. The current diagnosis of OCD available to psychiatrists is subjective and therefore knowledge of the underlying causes may lead to better diagnosis and ultimately improved clinical treatments.

However, we have a long way to go to identify the genes contributing to the distinctive brain structure found in OCD patients and their relatives. We also need to identify other contributing factors for OCD, to understand why close relatives that share similar brain structures dont always develop the disorder.


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Contact: Genevieve Maul
Genevieve.maul@admin.cam.ac.uk
44-077-740-17464
University of Cambridge
Source:Eurekalert

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