Not being very literet, I might have spelt it wrong, oral is above the neck ,skull and senses there in and their inability to send the right information of touch and feel when in the wrong position or posture to the rest of the body because of out lying forces[ gravity] . the big problem is the eyes, and the ways to overcome the problem whether it be by changing the centre of most resistance feel or go blind touch. the leg I bet you wish you could.