OCD . Medical experiments of National Institutes of Health resulted with discovering of certain genetic mutation , affecting serotonin transporter (Wikipedia , 2006 . This mutation can probably be one of the causes of OCD , as well as certain failures on chemical level in those areas of human brain , where communication ``intentions-actions ' takes place (so called ``Brain Lock (Wikipedia , 2006 . Development of OCD is connected with the processes in the cingulated cortex and the striatum of human brain . In particular , it involves activity of...











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