Figure 8

The medians of the PSD’s of the motion artifact. The PSD’s are shown from 0 to 5 Hz and the data is filtered between 0.2 and 10 Hz. The first group of rows shows data from experiments with Pattern 1; the second group of rows shows data from experiments with Pattern 2. The first group of columns represents experiments at the distal location; the second group of columns represents experiments at the proximal location. Each PSD graph is presented with its own scaling to make comparison easier.