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. Author manuscript; available in PMC: 2018 Dec 20.
Published in final edited form as: Neuron. 2017 Dec 7;96(6):1282–1289.e4. doi: 10.1016/j.neuron.2017.11.006

Figure 4.

Figure 4

Stimulus-triggered averages of EMG activity. Averages of rectified EMG activity from four upper extremity muscle groups—Triceps, Biceps, forearm Extensors, and forearm Flexors—were compiled for each monkey (A, monkey L; B, monkey X) using individual ICMS pulses as triggers. ICMS parameters used for these sessions are given in Table S4. Separate averages (colors) were compiled using n pulses delivered through the PM electrode instructing the sphere, button, coaxial cylinder, or perpendicular cylinder, as well as for catch-trial pulses delivered in M1. The vertical gray bar indicates the interval during which the aligned stimulation artifacts have been blanked. Each trace has been z-scored. The dashed horizontal black lines represent ± 3 standard deviations from the bootstrap-adjusted baseline, i.e. the solid black horizontal line. See also Table S4 and Figure S1.