Fig. 3From: A computerized tablet system for evaluating treatment of essential tremor by magnetic resonance guided focused ultrasoundExample pre-operative drawings from a single participant. The three drawings (a–c) were made using the dominant hand (to be treated). The preprocessed, fast Fourier transformed speed data are plotted (d–f) below each drawing, with the tremor metric (TM) annotated above the largest peakBack to article page