A primary pursuit rotor task and concurrent subsidiary number processing task were performed by 72 male and 72 female paid volunteers who were experiencing ambient temperatures of 22°C, 29°C, or 35°C and noise levels of either 55 dB(A) or 95 dB(A). Performance decrements associated with high noise levels and high ambient temperatures were additive for the subsidiary task. Neither noise nor heat stress affected performance on the primary task. Results are interpreted in terms of an overload framework.
FinkelmanJ. M.GlassD. C.Reappraisal of the relationship between noise and human performance by means of a subsidiary task measure. Journal of Applied Psychology, 1970, 54, 211–213.
3.
GlassD. C.SingerJ. E.Urban stress. New York: Academic Press, 1972.
4.
JenningsA. E.ChilesW. D.An investigation of time-sharing ability as a factor in complex performance. Human Factors, 1977, 19, 535–547.
5.
KryterK. D.The effects of noise on man. New York: Academic Press, 1970.
6.
PeplerR. D.Performance and well-being in heat. In HerzfeldC. M. (ed.) Temperature: Its measurement and control in science and industry (Vol. 3) New York: Reinhold, 1963.
7.
PoultonE. C.Environment and human efficiency. Springfield, Ill.: Charles C. Thomas, 1970.
8.
VitelesM. V.SmithK. R.An experimental investigation of the effect of change in atmospheric conditions and noise upon performance. Paper presented at the meeting of the American Society of Heating and Ventilating Engineers, New York, January, 1946.
9.
WickensC. D.GopherD.Control theory measures of tracking as indices of attention allocation strategies. Human Factors, 1977, 19, 349–365.
10.
WilkinsonR.Some factors influencing the effect of environmental stressors upon performance. Psychological Bulletin, 1969, 72, 260–272.
