Citation

Chen L, Wang W, Qu J, Hu B, Cai R, Zhao M. China Saf. Sci. J. 2020; 30(2): 183-189.

Copyright

(Copyright © 2020, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2020.02.029

PMID

unavailable

Abstract

In order to solve contradiction between " massive information and limited display" of human-computer interface in air and missile defense control cabin, influence of information display ratio, information delivery ratio and data update ratio on cognitive load of interface was explored through experiments. A comprehensive evaluation model of subjective and objective cognitive load was established with spectral power of EGG alpha wave and task load index (TLX) scale as indicators, and was used to evaluate cognitive load. The results show that these three factors have a significant impact on cognitive load in an order of information display ratio, information delivery ratio, and data update ratio decreasingly according to their influence degree. The combination that that minimizes cognitive load is formed with an information display ratio of 80 bits, an information delivery ratio of 4 bits, and an data update ratio of 3 s. © 2020 China Safety Science Journal. All rights reserved.

Language: zh