proprioception
Proprioception is the sense that indicates whether the body is moving with required effort, and where the various parts of the body are located in relation to each other and to the force of gravity. Dr. Sherrington originated the term in a series of lectures on reflex chains about 1900. He compared proprioception with interoception and exteroception. Motor Control and Learning 1982 ediition authored by Richard A. Smith Ph.D quotes on page 10: \\\"Sherrington coined the term proprioception which refers to the sense of body position and orientation thought to be signaled by the various muscle and joint receptorstogether with receptors located in the inner ear\\\". Dr Schmidt from the U. of California wrote a book on skill in which a graphic formula shows that exterocepive feedback (including vision) is appraised through proprioception.
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