The same areas which are active in listening to music are also active when you imagine music, and this includes the motor areas, too. That explains why earlier, even though I was only thinking of the mazurka, I was thinking in terms of movement.
Oliver SacksDr. Kertesz mentioned to me a case known to him of a farmer who had developed prosopagnosia and in consequence could no longer distinguish (the faces of) his cows, and of another such patient, an attendant in a Natural History Museum, who mistook his own reflection for the diorama of an ape
Oliver SacksEvery act of perception, is to some degree an act of creation, and every act of memory is to some degree an act of imagination.
Oliver Sacks