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. 2018 Jan 31;38(5):1264–1276. doi: 10.1523/JNEUROSCI.2869-17.2017

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Copyright © 2018 Hannah et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License Creative Commons Attribution 4.0 International, which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

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Figure 3. — A, B, During the choice reaction time task, MEP amplitudes in the right FDI shown normalized to the WS time point (colored lines, left y-axis) were suppressed more for AP currents than for PA currents at the IS during right hand-responding trials (A) and at the IS and 70%_RT in right-hand nonresponding trials (B). The facilitation of MEPs in right hand-responding trials at 70%_RT was similar for both current directions (A). Voluntary rms EMG (colored bars, right y-axis) measured before the TMS pulses is shown normalized to values at the WS, and was similar for PA and AP currents across different time points for right hand-responding (A) and nonresponding trials (B). C, D, MEP latencies were longer for AP currents compared with PA currents in both right hand-responding (C) and nonresponding (D) trials at all time points except 70%_RT in responding trials. **p < 0.01, ***p < 0.001, compared with the WS time point within each current direction; ++p < 0.01, +++p < 0.001, AP vs PA.