Table 2 Mechanical and thermal hyperalgesia.

From: An intensity matched comparison of laser- and contact heat evoked potentials

 

Sham (mean ± sd)

Capsaicin (mean ± sd)

t score

df

p-value

Post–pre-cream pin prick pain (CHEPs session)

− 0.1 ± 0.2NRS

0.1 ± 0.2NRS

− 2.85

17

0.011

Post–pre-cream pin prick pain (LEPs session)

0.0 ± 0.3NRS

0.2 ± 0.4NRS

− 2.36

19

0.029

Contact heat pain

3.0 ± 1.6NRS

2.7 ± 1.7NRS

1.59

17

0.131

Laser pain

2.8 ± 1.7NRS

2.5 ± 1.5NRS

0.38

17

0.708

  1. CHEPs: contact heat evoked potentials; LEPs: laser evoked potentials; df: degree of freedom; sd: standard deviation.