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Table 1 Results of the nociceptive blink reflex before and after consuming caffeine 400 mg or smoking one cigarette

From: Influences of smoking and caffeine consumption on trigeminal pain processing

Groups

Latency (ms)

Latency (ms)

Area under the curve (x103) (ìV xms)

Area under the curve (x103) (ìV xms)

 

Before

After

Before

After

Coffeine

47.49 ± 6.15

47.64 ± 6.33

119.82 ± 180.61

113.96 ± 183.24

 

[36.65-63.40]

[35.70-71.75]

[24.18 ± 857.21]

[194.00-848.03]

Nicotine

46.00 ± 5.61

45.67 ± 4.39

110.52 ± 161.48

97.09 ± 140.1*

 

[37.40-61.80]

[35.20-54.50]

[17.24-743.72]

[14.4-671.0]

  1. *p < 0.05 t-test paired samples
  2. After smoking Area under the curve is significantly reduced in terms of an inhibition of trigeminal pain processing at brainstem level. Caffeine consumption does not influence results of the nociceptive blink reflex. Results are presented as mean ± standard deviations and range.