| Document ID (ISN) | 52482 |
| CIS number |
89-1743 |
| ISSN - Serial title |
0018-7208 - Human Factors |
| Year |
1988 |
| Convention or series no. |
|
| Author(s) |
Sorkin R.D., Kantowitz B.H., Kantowitz S.C. |
| Title |
Likelihood alarm displays |
| Bibliographic information |
Aug. 1988, Vol.30, No.4, p.445-459. 25 ref. |
| Abstract |
In a likelihood alarm display (LAD), an automatic monitoring system computes the likelihood that an event will require operator action and it produces a signal for the operator. Operator performance on 2 simultaneous tasks was evaluated. The primary task was to use a joystick control to keep a cursor following a moving target on a CRT display screen. The secondary task was to monitor a numerical display and decide whether the data indicated a significant event. The secondary task was performed with no LAD, with a colour-coded visual alarm and with a synthetic speech alarm. The LADs improved performance on both primary and secondary tasks. Thus, LADs do not necessarily add to the operator's attentional load, but rather can improve the allocation of attention among tasks. |
| Descriptors (primary) |
automatic alarms; computer-assisted control; vigilance tasks |
| Descriptors (secondary) |
human experiments; signal detecting tests |
| Document type |
D - Periodical articles |
| Subject(s) |
Psychology and sociology
|
| Broad subject area(s) |
Physiology, ergonomics
|
| Browse category(ies) |
Vigilance
|
