Reckoning the Moment of Reckoning in Spontaneous Voluntary Movement

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"One question that naturally arises is: When, if at all, along the time course of the RP does the brain make the final commitment to initiate movement? Is there a point of no return after which the sequence of action potentials becomes “ballistic” and movement, although not yet happening, can no longer be aborted? This is the question that Schultze-Kraft et al. (9) ask through a clever experiment involving a direct brain–computer interface (BCI). On-line detection of the RP allowed them to present a stop signal when the probability of an impending movement was high. This process afforded the authors a unique perspective on the inhibition of voluntary, uncued actions."


This review article was originally published in Proceedings of the National Academy of Sciences, volume 113, issue 4, in 2016. DOI: 10.1073/pnas.1523226113


National Academy of Sciences