| 视觉监控作业中信号间隔时间和双任务对信号觉察的影响 |
| |
| 引用本文： | 许百华,钱江,梁赫.视觉监控作业中信号间隔时间和双任务对信号觉察的影响[J].应用心理学,2001,7(1):49-52. |
| |
| 作者姓名： | 许百华 钱江 梁赫 |
| |
| 作者单位： | 浙江大学心理与行为科学系, |
| |
| 基金项目： | 浙江省自然科学基金资助项目(396048). |
| |
| 摘 要： | 本研究运用模拟实验,考察了以仪表显示为主的监控系统中信号间隔时间和双作业任务对人觉察信号的反应时间的影响.双作业中的主任务是要求被试同时监视4个仪表,次任务为对显示屏上一个红色亮点是否出现闪烁作简单的辨别反应.实验结果表明信号间隔时间是影响信号觉察反应时的一个重要因素.随着信号间隔时间由30-50秒延长到8-10分钟,信号觉察反应时随之先快后慢地增加.在低负荷的仪表监视作业中,通过增加一个刺激率较高而又比较简单的次任务,可使被试保持较高的唤醒水平和更好地集中注意,从而有利于提高信号觉察效率.
|
| 关 键 词： | 视觉监控作业 信号间隔时间 双任务 信号觉察 |
| 文章编号： | 1006-6020(2001)-01-0049-04 |
Effects of Signal Intervals and Dual Tasks on the Reaction Time for Detecting Signals in Visual Monitoring |
| |
| XU Baihua,QIAN Jiang,LIANG He.Effects of Signal Intervals and Dual Tasks on the Reaction Time for Detecting Signals in Visual Monitoring[J].Chinese JOurnal of Applied Psychology,2001,7(1):49-52. |
| |
| Authors: | XU Baihua QIAN Jiang LIANG He |
| |
| Abstract: | A simulated experiment was conducted to examine the effects of signal interval and dual task on the reaction time of signal detection in visual monitoring. The main task was for a subject to monitor 4 dials on a VDT, and the second task was to detect a flash of red light. The results suggested that the signal interval exerted a significant effect on the reaction time. The reaction time of signal detection increased at drag acceleration as the signal interval increased. In the condition of low workload, adding a simple second task with higher stimulus rate could improve the performance of signal detection in visual monitoring tasks. |
| |
| Keywords: | visual monitoring signal interval dual task signal detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
