Knott V J
Clinical Neurophysiological Services, University of Ottawa, Ontario, Canada.
Pharmacol Biochem Behav. 1990 Feb;35(2):341-6. doi: 10.1016/0091-3057(90)90166-f.
The effects of smoking two cigarettes on brain evoked potentials (EP) and subjective ratings (SR) of pain intensity to 3 levels of electrical skin stimulation were investigated in 14 female habitual smokers. Smoking increased EP amplitudes to all stimulus intensities, but did not alter SRs. Changes in SRs to intensities in the pain range, but not in the prepain range, were found to be negatively correlated with smoke inhalation as measured by expired alveolar carbon monoxide (CO) elevations. No significant EP-smoking inhalation correlations were observed.
在14名女性习惯性吸烟者中，研究了吸两支香烟对大脑诱发电位（EP）以及对3种不同强度皮肤电刺激的疼痛强度主观评分（SR）的影响。吸烟使所有刺激强度下的EP波幅增加，但未改变主观评分。研究发现，在疼痛范围内（而非疼痛前范围内），主观评分的变化与通过呼出肺泡一氧化碳（CO）升高所测量的烟雾吸入量呈负相关。未观察到诱发电位与烟雾吸入之间存在显著相关性。
