We do not perceive the world, but, most of the time, the representations that our brain elaborates. In What is Life (1944), Erwin Schr?dinger notes that, only when our representations and our perceptions (at first unconscious) diverge, is our attention awaken by this incoherence, and tries to resolve it. The sciences of the mind allowed to validate this scheme. The pre-eminence of representations over perceptions is heavily reinforced by the mechanisms...