THE EFFECT OF UNWANTED SIGNALS ON PERFORMANCE IN A VIGILANCE TASK
THE EFFECT OF UNWANTED SIGNALS ON PERFORMANCE IN A VIGILANCE TASK
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DOI：
10.1080/00140136108930506
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发表时间：
1961-01-01
期刊：
影响因子：
2.4
通讯作者：
COLQUHOUN, WP
中科院分区：
文献类型：
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作者：
COLQUHOUN, WP
在一个实验中，信号频率和想要的信号概率（想要的信号与不想要的信号的比率）是独立变化的，观察到的任务中的视觉警惕，其中“想要的”和“不想要的”信号发生的性能。结果发现：1.任何信号出现的概率增加六倍将是一个想要的一个导致在这些想要的信号被检测到的效率相当大的改善，而类似的增加的频率与信号被提出没有产生显着的效率改变。表现的改善出现在手表的前十分钟，并在整个会话中保持明显。这种改善在信号出现在显示器周边附近的情况下最为显著。检测效率的个体差异有关的频率与虚假报告made.Implications理论的警惕行为，和组织的监测工作的结果的相关性，被认为是在讨论中。
Performance in a task of visual vigilance in which both ‘wanted’ and ‘ unwanted ’ signals occurred was observed in an experiment in which signal frequency and wanted signal probability (ratio of wanted to unwanted signals) were varied independently. It was found that:1. A sixfold increase in the probability that any signal occurring would be a wanted one resulted in a considerable improvement in the efficiency with which those wanted signals were detected, whereas a similar increase in the frequency with which signals were presented produced no significant alteration in efficiency.2. The improvement in performance appeared during the first ten minutes of the watch and remained in evidence throughout the session.3. The improvement was most marked in the case of signals appearing near the periphery of the display.4. Individual differences in detection efficiency were related to the frequency with which false reports were made.Implications for the theory of vigilance behaviour, and the relevance of the results to the organization of monitoring work, are considered in the discussion.