In applying the theory of signal detectability to the perception of differences in load on a bicycle ergometer, the distributions of signal and noise were tested for normality and equality of variances. Two subjects cycled on a basic load of 40% of their VO2 max. Each subject operated under five different response criteria. The results showed that the assumptions of normality and equality of variance were observed in both cases.
Get full access to this article
View all access options for this article.
References
1.
ÅstrandP. O.RodahlK.Textbook of work physiology. New York: McGraw-Hill, 1970.
2.
BlitzP. S.van MoorstA.Physical fatigue and the perception of differences in load: A signal detection approach. Perceptual and Motor Skills, 1978, 46, 779–790.
3.
BorgG.Physical performance and perceived exertion. Lund: Gleerup, 1962.
4.
BorgG.The basic “noise constant” in the psychophysical function of perceived exertion. Reports from the Institute of Applied Psychology, University of Stockholm, 1972, No. 33.
5.
CafarelliE.NobleB. J.The effect of inspired carbon dioxide on subjective estimates of exertion during exercise. Ergonomics, 1976, 19, 581–589.
6.
EkblomB.GoldbargA. N.The influence of physical training and other factors on the subjective rating of perceived exertion. Acta Psychologica Scandinavia, 1971, 83, 399–406.
7.
GranitR.The basis of motor control. New York: Academic Press, 1970.
8.
GreenD. M.SwetsJ. A.Signal detection theory and psychophysics. New York: Wiley, 1966.
9.
HayesK. C.Reaction times, reflex times and fatigue. In SimonsonE.WeiserP. C. (Eds.), Psychological aspects and physiological correlates of work and fatigue. Springfield, IL: Thomas, 1976. Pp. 106–136.
10.
KamonE.Cardiopulmonary responses of male and female subjects to submaximal work on laddermill and cycle ergometer. Ergonomics, 1972, 15, 25–33.
11.
KinsmanR. A.WeiserP. C.Subjective symptomatology during work and fatigue. In SimonsonE.WeiserP. C. (Eds.), Psychological aspects and physiological correlates of work and fatigue. Springfield, IL: Thomas, 1976. Pp. 336–414.
12.
MackworthJ. F.TaylorM. M.The d' measure of signal detectability in vigilance-like situations. Canadian Journal of Psychology, 1963, 17, 302–325.
13.
MarascuiloL. A.Extensions of the significance test for one-parameter signal detection hypotheses. Psychometrika, 1970, 35, 237–243.
14.
MertonP. A.Speculation on the servo-control of movement. In MalcolmJ. L.GrayJ. A. B. (Eds.), The spinal cord. London: J. & A. Churchill, 1953. Pp. 247–260.
15.
PandolfK. B.CafarelliE.NobleB. J.MetzK. F.Perceptual responses during prolonged work. Perceptual and Motor Skills, 1972, 35, 975–985.
16.
SchaapT.WielingaB. J.A simultaneous regression program for TSD data. Technical Report, No. 229. Funktieleer, Univer. of Amsterdam, 1978.
17.
SkinnerJ. S.HutslerR.BergsteinovaV.BuskirkE. R.Perception of effort during different types of exercise and under different environmental conditions. Medicine and Science in Sports, 1973, 5, 110–115.
18.
UlmerH. V.GanzU.LöllgenH.Aspects of the validity of Borg's scale: Is it measuring stress or strain? In BorgG. (Ed.), Physical work and effort. (Wenner-Gren Center International Symposium Series, Vol. 28.) New York: Pergamon, 1977. Pp. 181–197.
