By Thomas.haslwanter (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/
by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
If he was asleep at night he would
not have the positional sense or the
control that we have over our bodies, purely because he could not see
the position of his limbs. Even when
the lights were on and he could see
where his body was, learning how
to control his muscles again using
only sight seemed like an impossible task.
Proprioception is like a sixth sense
in that it is so vitally important for
our capacity to move and function in
the world. Without this proprioception we can have no inner sense of
posture or limb position and cannot
initiate or control movement.
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