Fig. 3
From: Deficits in tapping accuracy and variability in tremor patients
Tapping variability. Tapping variability determined with the accelerometers for the 4 Hz (a) and EMG data of the 4 Hz (b) tapping task. Inter-group differences between individual task/hand combination are indicated by two asterisks. HC = Healthy controls (light grey); ET = Essential Tremor (dark grey); PD = Parkinson’s Disease (black); R = Right hand; L = Left hand