and if you ask patients like is to drawanobs,je ct le in thema wge ildou like to call upow, ldyouan seetients may miss out things on the left side. they can miss out the left odethe body, the left odef octhcl te ,thkhe wheel on the left side of the bicycle. all of this is happening with the primary sensory apparatus intact so the eyes are functioning normally. the primary visual cortex at the back of the brain which receives input from the eyes is functioning normally. but these patients are unaware of objects to their left. and neglect isn't just for vision, it extends into touch and hearing. and fascinatingly i ca also extend into people away of managing things so this is a famous study that was performed by eduardo biziak a neuropsychologist from milan and he asked his right hemisphere stroke patients to imagine the central cathedral square, the piazzod-- in the center of min from their hospital beds, just imaginthinking about that square. and saidimagine looking at the square from this viewpoint. right toward the cathedral. and tell me what you can remember about the square. and tho