Examples of reduction of tremor amplitude with the NP. Each subplot in this graphic shows a representative trial for each patient, and compares the amplitude of the tremor before (gray) and after (black) the NP was activated. Top plots represent the data in the time domain, whereas bottom plots represent the same data in the frequency domain (we show the mean power spectral density for the neurostimulation and non-neurostimulation periods). In the time domain, the moments at which the NP was triggered are signaled with an arrow; in the frequency domain, the arrow points at the tremor peak while the NP was activated. Examples correspond to: patient 01 (A), patient 02 (B), patient 03 (C), patient 04 (D), patient 05 (E) and patient 06 (F).