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Table 3 Electrophysiological data – nociceptive blink reflex and pain related evoked potentials

From: Patient-conducted anodal transcranial direct current stimulation of the motor cortex alleviates pain in trigeminal neuralgia

Nociceptive Blink reflex*

Condition

Latency (ms)

Latency (ms)

Area under the curve (x10-3, μVxms)

Area under the curve (x10-3, μVxms)

 

Baseline

Post-stimulation

Baseline

Post-stimulation

Symptomatic side

anodal

66.6 ± 11.0

63.8 ± 4.6

766.3 ± 345.3

917.9 ± 363.9

 

Sham

71.9 ± 14.0

66.7 ± 11.2

685.1 ± 418.9

851.2 ± 434.4

Asymptomatic side

anodal

65.5 ± 7.9

74.4 ± 47.1

863.1 ± 404.7

827.7 ± 380.4

 

Sham

66.6 ± 7.1

64.6 ± 8.1

819.2 ± 449.1

839.3 ± 524.4

Pain related evoked potentials*

Condition

Amplitude (μV)

Amplitude (μV)

N2 latency (ms)

N2 latency (ms)

  

Baseline

Post-stimulation

Baseline

Post-stimulation

Symptomatic side

anodal

66.7 ± 34.1

54.8 ± 34.9

157.4 ± 34

165.4 ± 20.9

 

Sham

58.5 ± 32.4

48.9 ± 31.8

162.5 ± 38.3

163.3 ± 20.7

Asymptomatic side

anodal

55.3 ± 31

55.9 ± 30.8

155.6 ± 24.2

169.7 ± 48.8

 

Sham

50.8 ± 28.1

52.7 ± 35.6

161.1 ± 22.5

161.4 ± 23.9

  1. AUC = Area under the curve; *only patients that entered the final analysis.