Combined Effects of Tobacco and Caffeine on the Components of Choice Reaction-Time, Heart Rate, and Hand Steadiness
Combined Effects of Tobacco and Caffeine on the Components of Choice Reaction-Time, Heart Rate, and Hand Steadiness
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烟草和咖啡因对选择反应时间、心率和手部稳定性组成部分的综合影响
DOI：
10.2466/pms.1977.45.2.635
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发表时间：
1977
影响因子：
1.6
通讯作者：
G. Leigh
中科院分区：
文献类型：
--
作者：
D. Smith;J. Tong;G. Leigh
8 名男性吸烟者在 6 种条件下进行了测试，其中包括 200 毫克的组合。咖啡因或不含咖啡因，不吸烟，一次 0.3 毫克。尼古丁香烟或一支 1.3 毫克。尼古丁香烟，用于选择反应时间任务的决策时间和运动时间得分。在整个训练过程中，从预测试阶段开始监测心率，并多次测量手的稳定性。咖啡因和尼古丁都会显着降低决策时间分数，但没有发现相互作用。高尼古丁香烟的效果最大。仅咖啡因即可改善运动时间分数。单独的咖啡因和单独的尼古丁都会加速心率，但两者结合起来似乎会产生拮抗作用。两种药物均显着损害手的稳定性，但没有相互作用。
Eight male smokers were tested under 6 conditions comprising the combinations of 200 mg. caffeine or no caffeine, with no cigarette, one 0.3-mg. nicotine cigarette or one 1.3-mg. nicotine cigarette, for decision time and motor time scores on a choice reaction-time task. Heart rate was monitored from a pretest period throughout the session, and hand steadiness measured on repeated occasions. Decision-time scores were significantly decreased by both caffeine and nicotine, but no interaction was found. The high-nicotine cigarette had the greatest effect. Motor time scores were improved by caffeine only. Both caffeine alone and nicotine alone accelerated the heart rate but in combination appeared to have antagonistic effects. Hand steadiness was significantly impaired by both drugs but with no interaction.