Table 1.

P2 mean amplitudes (μV)^a

Condition	Control group (n = 18)	Placebo group (n = 20)
Self pain	38.28 (3.60)	28.34 (2.05)
Self no pain	17.50 (1.69)	15.64 (1.41)
Other pain	12.87 (1.17)	9.75 (0.66)
Other no pain	8.49 (1.02)	8.39 (0.88)

^aData are mean (SEM).