[Psychological study of parameter selection for Chinese speech warning].
To study the effects of the parameters of Chinese speech warning on cognitive property, and to obtain the optimal parameters in accordance with cognitive property, experiments of cognitive property for Chinese speech warning was carried out in 20 healthy males. Combining our study on the sensation-reaction time, the optimal parameters in accordance with space ergonomics [correction of ergonormics] and cognitive property were determined: suitable time length of prewarning sound is 0.35 approximately 0.55 s; prewarning interval is 0.3-0.4 s; interval between sentences is 0.3-0.4 s; word number of warning sentence < or = 7. The result can serve as the objective ergonomical basis for the design of Chinese speech warning system in manned space vehicle, and as the evaluation criterion.
Han
D
D
Institute of Space Medico-Engineering, Beijing, China
Zhou
C
C
Liu
Y
Y
Zhai
Y
Y
D000328:Adult; D001296:Audiovisual Aids; D002681:China; D003071:Cognition; D003142:Communication; D006804:Ergonomics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011930:Reaction Time; D013026:Space Flight / Q000295:instrumentation*; D013065:Speech Intelligibility; D013067:Speech Perception