Figure 5. Allodynia evoked by gentle brushing in absence of myelinated afferents.

Mean brush-evoked responses (±SEM; n = 5; grey) were expressed as a percentage of the baseline muscle pain (unshaded). Gentle brushing at speeds of 1 cm s⁻¹ and 3 cm s⁻¹ evoked a significant increase in HS-induced muscle pain (allodynia) during compression of myelinated afferents. The expression of allodynia was comparable between the two brushing speeds. Note that scaling is different in this figure. **P < 0.01; ***P < 0.001.