作者: Raz Leib , Amir Karniel , Ferdinando A. Mussa-Ivaldi
DOI: 10.1038/S41598-017-07289-3
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摘要: When we knock on a door, perceive the impact as collection of simultaneous events, combining sound, sight, and tactile sensation. In reality, information from different modalities but single source is flowing inside brain along pathways, reaching processing centers at times. Therefore, interpreting sensory which seem to occur simultaneously requires that accounts for these delays. As in computer-based robotic system, does use some explicit estimation time delay, realign flows? Or it compensate temporal delays by representing them changes body/environment mechanics? Using delayed-state or an approximation manipulations between visual proprioceptive feedback during tracking task, show errors, grip forces, learning curves are consistent with predictions representation based refuting representation. Delayed-state representations estimating elapsed movement commands their observed consequences. contrast, delay result instantaneous relation expected motion variables, without reference time.