I'm wondering if the blank mind/feeling mentally disengaged is like the psychomotor retardation described in some people with depression. I recently had a SPECT scan showing hyperactive medial pfc and thalamus. The same areas in the depression study by Dr. Liston for the subtype with high anhedonia and psychomotor retardation. If so, maybe I just have a strange form of depression. My next step is likely to find a TMS provider who will work with my specific situation .