On Subjective Back-Referral and How Long It Takes to Become Conscious of a Stimulus: A Reinterpretation of Libet's Data

The original data reported by Benjamin Libet and colleagues are reinterpreted, taking into account the facilitation which is experimentally demonstrated in the first of their series of articles. It is shown that the original data equally well or better support a quite different set of conclusions from those drawn by Libet. The new conclusions are that it takes only 80 ms (rather than 500 ms) for stimuli to come to consciousness and that "subjective back-referral of sensations in time" to the time of the stimulus does not occur (contrary to Libet's original interpretation of his results).