Fig. 2.

(a) Processed signal before and after 10 mins, 30 mins, 1hr, 2 hrs and 4 hrs of SGS application; (b) Averaged peak to peak of the processed signal before and 4 hrs after SGS application; (c) Reflectivity after 0, 20, 40 and 60 s of occlusion for before and after 4hrs of SGS application; and (d)Averaged peak to peak of the processed signal before and 4 hrs after applying silicone gel. The dashed black lines in (b) and (d) are horizontal visual guides. Error bars are the standard deviations from averaging over 10 subjects.