subconscious visual cues during movement execution allow correct online choice reactions潜意识的视觉线索运动执行期间允许在线选择正确的反应.pdfVIP

Subconscious Visual Cues during Movement Execution Allow Correct Online Choice Reactions 1,2 3,4 3,4,5 1 Christian Leukel *, Jesper Lundbye-Jensen , Mark Schram Christensen , Albert Gollhofer , Jens Bo Nielsen3,4, Wolfgang Taube2 1 Department of Sport Science, University of Freiburg, Freiburg, Germany, 2 Department of Medicine, Movement and Sport Science, University of Fribourg, Fribourg, Switzerland, 3 Department of Exercise and Sport Sciences, University of Copenhagen, Copenhagen, Denmark, 4 Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark, 5 Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Copenhagen, Denmark Abstract Part of the sensory information is processed by our central nervous system without conscious perception. Subconscious processing has been shown to be capable of triggering motor reactions. In the present study, we asked the question whether visual information, which is not consciously perceived, could influence decision-making in a choice reaction task. Ten healthy subjects (28 65 years) executed two different experimental protocols. In the Motor reaction protocol, a visual target cue was shown on a computer screen. Depending on the displayed cue, subjects had to either complete a reaching movement (go-condition) or had to abort the movement (stop-condition). The cue was presented with different display durations (20–160 ms). In the second Verbalization protocol, subjects verbalized what they experienced on the screen. Again, the cue was presented with different display durations. This second protocol tested for conscious perception of the visual cue. The resul