Sensory calibration, or the three-satellite GPS

You have probably already seen it, maybe at home. An athlete who stacks up sessions without transferring anything to the match, someone who keeps twisting the same ankle, an older person who loses balance as soon as the light dims, a child who keeps bumping into the same table corners. Each time, we look for the cause in the muscles, the concentration or bad luck, and we miss the essential.

Word of the day: sensory calibration

Sensory calibration is the permanent adjustment the brain makes so that the information from your sensors, the eyes, the inner ear, the soles of the feet, the muscles, all tell the same story, at the same moment, without contradicting each other.

The clearest image is a GPS with three satellites: vision (the visual system), the inner ear (the vestibular system) and the sensors of the muscles, joints and skin (the mechanoreceptors). As long as all three send consistent signals, the GPS works, and you move without thinking about it.

When a satellite drops out

If a single satellite gives information that is off, late or contradictory, you enter a sensory conflict (the mismatch between prediction and feedback): two sensors tell one story, the third tells another, and the brain has to choose.

Faced with two contradictory pieces of information, it makes the safest decision: it restrains the movement. You still move, with less amplitude, less precision and more tension, without having consciously felt anything.

Compensate or calibrate

Faced with a sensor that lies, the body has two strategies. Compensation is a local, silent solution: the brain gets by despite the faulty sensor by leaning harder on the other two. It works, at a price: you progress in the gym and regress as soon as the context changes, you hold steady on a mat and fall on uneven ground, and a muscle chain wears itself out compensating.

Calibration does the opposite: you put the faulty sensor back in play, through specific work on the inner ear, the soles of the feet, peripheral vision or the deep neck muscles, and the GPS gets its three satellites back. The movement then starts to transfer, because the perception-action loop regains a sound base to learn from (the sensorimotor loop).

Taking one sensor out of play means taking the whole body out of its learning loop.

Whether you work with athletes, children or older people, or you are looking for this framework for yourself, the introduction to the RNP, Neuro-Postural Reprogramming, is free, and the vestibular guide gives you a first test of one of the three satellites.

You are a movement professional: here is the training. You want to take stock for yourself: request an assessment.