What is proprioception and why is it important in motor learning and postural control?

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Proprioception is the sense of body position and movement that comes from receptors in muscles, tendons, and joints. This internal feedback tells the brain where your limbs are and how they’re moving, even with your eyes closed. In motor learning, proprioceptive information helps update your internal motor model, allowing you to refine movements, reduce errors, and perform actions more smoothly as you practice. For postural control, it provides essential information about body sway and limb orientation, enabling automatic adjustments to keep balance—like a quiet, continuous check that helps you stay upright during tasks that shift your weight. While vision and the vestibular system contribute to balance, proprioception is the reliable internal signal about limb position and movement that underpins coordinated action and stable posture.