What does sensory reweighting refer to in postural control testing?

• A. Shifting reliance among proprioceptive, vestibular, and visual inputs as conditions change
• B. Constant reliance on vision
• C. Ignoring sensory input
• D. Exclusive dependence on auditory cues

Answer: (A)

Sensory reweighting is about the nervous system changing how much it relies on each sense for balance as the testing conditions change. In postural control, you don’t lean on one input forever; you weight visual, proprioceptive (body position), and vestibular (inner ear) information based on how reliable each source is at that moment. For example, if vision is unreliable or unavailable (eyes closed or a moving visual scene), the system shifts more weight to proprioceptive and vestibular cues. If the surface is unstable or sway-referenced, proprioceptive input becomes less trustworthy and other cues take on more weight. This adjustment happens quickly to keep posture stable.

That’s why this option is the best: it captures the dynamic adjustment of multiple sensory inputs rather than assuming constant reliance on one source, ignoring input, or depending on auditory cues.