Use of Warnings in an Attentionally Demanding Detection Task

Human Factors - Tập 43 Số 2 - Trang 217-226 - 2001
Masha Maltz1, Joachim Meyer1
1Ben-Gurion University of the Negev, Beer-Sheva, Israel

Tóm tắt

The study assessed the use of binary warnings in a detection task with high attentional demands. Participants in the experiment had to decide whether to continue or halt production based on a briefly displayed number that indicated a temperature level. The short time that the number was displayed required that participants focus on the display area. Participants were rewarded for production when the system was intact and were heavily penalized for decisions to produce under dangerous temperature levels. Color-coded warning cues (green for safe, red for danger) were displayed to the participants prior to number presentation. The experimental conditions differed in the validity of the cue and in the probability of red cues. Results showed significant learning for all conditions. Participants tended to ignore the nonvalid and low-validity cues and rely only on highly valid cues. However, the mere existence of cues affected participants' general tendency to take risks. Actual or potential applications of this research include improving systems that require operators to devote attention to complex tasks while receiving and responding to warnings.

Từ khóa


Tài liệu tham khảo

Breznitz, S., 1983, Cry-wolf: The psychology of false alarms.

10.1037/1076-898X.1.1.19

10.1037/0096-1523.26.1.325

Green, D. M., 1966, Signal detection theory and psychophysics.

Meyer, J. (in press). Effects of warning validity and proximity on the response to warnings. Human Factors.

Meyer, J. & Ballas, E. (1997). A two-detector signal detection analysis of learning to use alarms. In Proceedings of the Human Factors and Ergonomics Society 40th Annual Meeting (pp. 186–189). Santa Monica, CA: Human Factors and Ergonomics Society.

10.1518/001872099779577246

10.1518/001872096778702024

10.1207/s15327108ijap0801_3

10.1016/0030-5073(77)90015-0

10.1037/0033-295X.86.3.214

10.1207/s15327108ijap0301_1

10.1518/001872097778543886

Robinson, D. E., 1985, Trends in ergonomics/human factors: Vol. II, 75

10.1121/1.397232

10.1207/s15327051hci0101_2

10.1007/978-1-4757-6846-6

Thông tin
Thông tin xuất bản

Human Factors

Tập 43 Số 2

217-226

Thông tin tác giả