タイトル | Likelihood alarm displays |
著者(英) | Kantowitz, Barry H.; Kantowitz, Susan C.; Sorkin, Robert D. |
著者所属(英) | Battelle Memorial Inst.|Purdue Univ.|Behavioral Research Associates |
発行日 | 1988-08-01 |
言語 | eng |
内容記述 | In a likelihood alarm display (LAD) information about event likelihood is computed by an automated monitoring system and encoded into an alerting signal for the human operator. Operator performance within a dual-task paradigm was evaluated with two LADs: a color-coded visual alarm and a linguistically coded synthetic speech alarm. The operator's primary task was one of tracking; the secondary task was to monitor a four-element numerical display and determine whether the data arose from a 'signal' or 'no-signal' condition. A simulated 'intelligent' monitoring system alerted the operator to the likelihood of a signal. The results indicated that (1) automated monitoring systems can improve performance on primary and secondary tasks; (2) LADs can improve the allocation of attention among tasks and provide information integrated into operator decisions; and (3) LADs do not necessarily add to the operator's attentional load. |
NASA分類 | BEHAVIORAL SCIENCES |
レポートNO | 88A55048 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/368557 |