Citation

Sheridan TB. Ergon. Des. 2013; 21(1): 4-6.

Copyright

(Copyright © 2013, Human Factors and Ergonomics Society)

DOI

10.1177/1064804612445192

PMID

unavailable

Abstract

Human response times fit a lognormal probability function, which poses severe constraints on the time a system designer must allow to accommodate a significant fraction of respondents; for example, 6 standard deviations for 95% confidence and 11 standard deviations for 99% confidence. When a human operates in series with machine elements, there may be no justification for demanding a quick response from the machine.

Language: en