New Perspectives for Computer-Aided Discrimination of Parkinson’s Disease and Essential Tremor

Figure 7

Values of the global tremor symmetry (N6 and N7), the coefficient of variation for pairwise motor unit synchronization (N8 and N9), and the mean log power of all the harmonics (M2) metrics in the postural (AO, WE, and PO) and rest (RE) conditions. Normalization of the metrics during postural tasks with respect to their values during the RE task significantly increased the power to discriminate between ET and PD patients (c). The black horizontal lines depict the best cut-off values as listed in Tables 1 and 2.

(a)

(b)

(c)