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. Author manuscript; available in PMC: 2013 Oct 1.

Published in final edited form as: Exp Brain Res. 2012 Aug 31;222(4):455–470. doi: 10.1007/s00221-012-3232-3

Fig 8 — Group means for beta event-related desynchronization by condition at electrodes CP2 and CZ. Figure 8a presents time-varying morlet coefficients, normalized to baseline activity, of upper beta-band (20–29 Hz) activity at CZ, showing the effects of magnitude (predictable small vs. predictable large). The vertical gray line at −2000 ms represents the onset of the warning cue and 0 s represents perturbation onset. The gray background highlights the final 1000-ms epoch prior to the perturbation used to calculate an average ERD for statistical analysis, which is further summarized in Figure 8b. Smaller values represent greater ERD, referenced to a baseline value of 1. Error bars represent the standard error of the mean. PD = Parkinson’s disease. Figures 8c and 8d similarly present the effects of predictability (predictable vs. unpredictable-in-magnitude). Figures 8e–8h present electrode CP2

Fig 8 — Group means for beta event-related desynchronization by condition at electrodes CP2 and CZ. Figure 8a presents time-varying morlet coefficients, normalized to baseline activity, of upper beta-band (20–29 Hz) activity at CZ, showing the effects of magnitude (predictable small vs. predictable large). The vertical gray line at −2000 ms represents the onset of the warning cue and 0 s represents perturbation onset. The gray background highlights the final 1000-ms epoch prior to the perturbation used to calculate an average ERD for statistical analysis, which is further summarized in Figure 8b. Smaller values represent greater ERD, referenced to a baseline value of 1. Error bars represent the standard error of the mean. PD = Parkinson’s disease. Figures 8c and 8d similarly present the effects of predictability (predictable vs. unpredictable-in-magnitude). Figures 8e–8h present electrode CP2