Marzilli T S, Shea J B
Division of Health, Leisure and Exercise Science, University of West Florida, Pensacola 32514, USA.
Percept Mot Skills. 2000 Apr;90(2):624-30. doi: 10.2466/pms.2000.90.2.624.
The effect of smoking abstinence on performance of a reciprocal tapping task was investigated. 6 habitual smokers performed a single-plate and two versions of a two-plate tapping task. Fitts' Law was used to compute an index of difficulty (ID) in bits for the tasks which was 0 bits for the single-plate and 3.32 and 4.17 bits for the two-plate versions of the task. While smoking abstinence had no effect on performance of the single-plate tapping task, it increased movement time on performance of both two-plate task versions. These findings may provide a coherent explanation for the prior findings of nicotine deprivation on psychomotor performance in the literature. This explanation suggests that the effects of nicotine deprivation as incurred through smoking abstinence may be on the central mechanisms regulating information-processing rate for successful movement regulation. Thus nicotine deprivation may not affect performance of simple psychomotor tasks which require minimal information processing but will affect the performance of more complex tasks requiring significantly more information processing for successful movement regulation.
研究了戒烟对交替轻击任务表现的影响。6名习惯性吸烟者完成了单盘和两种双盘轻击任务。使用菲茨定律计算任务难度指数（ID），单位为比特，单盘任务的难度指数为0比特，双盘任务的两个版本分别为3.32比特和4.17比特。虽然戒烟对单盘轻击任务的表现没有影响，但它增加了两个双盘任务版本表现中的动作时间。这些发现可能为文献中先前关于尼古丁剥夺对心理运动表现影响的研究结果提供一个连贯的解释。这种解释表明，通过戒烟导致的尼古丁剥夺效应可能作用于调节成功运动调节信息处理速率的中枢机制。因此，尼古丁剥夺可能不会影响需要最少信息处理的简单心理运动任务的表现，但会影响需要更多信息处理以成功进行运动调节的更复杂任务的表现。
