Topic: movement precision

Previous studies have suggested that the relative importance associated with redundant sensory signals should depends only on their relative noisiness, so as to optimize movement precision (Maximum Likelihood Principle, MLP). As a consequence, whether a goal-oriented hand movement is performed in a seated or standing position should not affect the visuo-proprioceptive sensory weights. To test this hypothesis, we asked healthy subjects to perform visuo-manual coordination tasks both seated and standing. Using virtual reality and quantifying the deviation of the subjects’ motor responses due to