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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Pain. 2009 Jan 10;141(3):258–268. doi: 10.1016/j.pain.2008.11.018

Figure 1.

Figure 1

Estimations of pain and pressure magnitudes for the 2 different diameter probes. A) Magnitude estimations of pain. Only indentations of 0.2 mm diameter probe with force of 0.3 N or above were judged as painful. Average threshold to elicit a weak pain was about 0.3 N (dashed line). B) Magnitude estimations of pressure. The magnitude estimations of pressure overlapped for the 2 probes: 0.2 mm probe, line of black. 2 mm probe, line of gray. The fitted regression equations are shown on the right. Each symbol (triangle, square, or circle etc) represents the average rating from an individual subject. These observations are consistent with a previous report [23].