Physiological parameters of mental load.
Physiological parameters of mental load.
复制标题
精神负荷的生理参数。
DOI：
10.1080/00140137108931232
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发表时间：
1971
期刊：
影响因子：
2.4
通讯作者：
R. Zielhuis
中科院分区：
文献类型：
--
作者：
J. Ettema;R. Zielhuis
摘要精神负荷这个术语可以用来表示需要人的信息处理能力的任务的含义。在工作生理学中，“负荷”和“能力”这两个术语的基本方面在以下方面适用于精神负荷：特定表现的生理“代价”(生物后果)的问题；外部负荷以表现/时间(信号/时间、选择/时间)为单位来衡量；能力，取决于耐力时间；与负荷相关的生理变化；极端负荷引起的病理症状。讨论了一个实验，其中一个简单的二进制选择任务被用来回答几个频率的信号；因此提供了不同的负载。心率、窦性心律失常、收缩压、舒张压、呼吸频率等出现全身性改变。作者认为这些变化是由于交感神经张力和迷走神经张力同时升高所致。
Abstract The term mental load can be used for the implications of tasks calling on the information handling capacity of man. The essential aspects of the terms ‘ load ’ and ‘ capacity ’, as used in work physiology, are valid for mental load in the following ways: the question of the physiological ‘ costs ’ (biological consequences) of a given performance; external load to be measured in units of performance/time (signals/time, choices/time); capacity, dependent on time of endurance; physiological changes correlating with load; pathological symptoms due to extreme load. An experiment is discussed, where a simple binary choice task is used with several frequencies of signals to be answered; thus providing different loads. Systematic changes were found in heart frequency, sinus arrhythmia, systolic and diastolic blood pressure, rate of respiration, and so on. Arguments are put forward that these changes are due to a simultaneous rise in sympathetic and in vagal tone.