Figure 1

Experimental Setup. a) Participants were seated before a computer monitor and gripped one (Experiment 2) or both (Experiment 1) horizontally mounted levers. A vibrating cuff was secured to one arm. b) Draping was drawn over the shoulders to prevent visualization of arm movement, represented by a dashed line. c) In Experiment 2, participants followed a pattern of movement similar these two example trials. Following a 3s stable baseline, sine-cosine waveforms dictated target movement. Two trial waveform patterns, each assembled from 1 random and 1 repeating sequence, are overlaid. The random epoch comes first, followed by the repeated sequence epoch during both trials for ease of visualization.