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The point of no return in vetoing self-initiated movements

Matthias Schultze-KraftBernstein Center for Computational Neuroscience, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;Daniel BirmanBerlin Center for Advanced Neuroimaging, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;Marco RusconiBerlin Center for Advanced Neuroimaging, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;Carsten AllefeldBerlin Center for Advanced Neuroimaging, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;Kai GörgenBerlin Center for Advanced Neuroimaging, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;Sven DähneMachine Leaning Group, Technische Universität Berlin, 10587 Berlin, Germany;Benjamin BlankertzBernstein Center for Computational Neuroscience, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;John–Dylan HaynesBerlin Center for Advanced Neuroimaging, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany;

2015en

ABI

Annotatsiya

In humans, spontaneous movements are often preceded by early brain signals. One such signal is the readiness potential (RP) that gradually arises within the last second preceding a movement. An important question is whether people are able to cancel movements after the elicitation of such RPs, and if so until which point in time. Here, subjects played a game where they tried to press a button to earn points in a challenge with a brain-computer interface (BCI) that had been trained to detect their RPs in real time and to emit stop signals. Our data suggest that subjects can still veto a movement even after the onset of the RP. Cancellation of movements was possible if stop signals occurred earlier than 200 ms before movement onset, thus constituting a point of no return.

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Identifikatorlar

DOI: 10.1073/pnas.1513569112

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