This
Study showed individuals with OCD had 'soft signs' of the illness. These are subtle physical differences, not just 'mental' differences from the typical population. Dysfunction is the basal ganglia part of the brain is thought to play a role in OCD,. This theory is supported by the soft signs found. Under fMRI, the
basal ganglia is one of the brain regions that lights up with IM training. IM exercises the basal ganglia, maybe that's why we frequently see improvement with OCD symptoms after IM training.
