Id say the heart could be much more involved in movement than most think and may be proven to be in future. a man suddenly has a heart transplant, hes never knitted a stitch before in his life, suddenly he has the urge to knitt complex stitchwork hes never done before, numerous times a day. this is happening in heart transplant patients all over the world, patients doing things THEY have never done before, but the heart has. I dont believe all movement comes from the brain.