Summary
In measuring the distance at which we can observe the fine details of the three stimuli shown in Fig. 3 (striped squares, whose areas are 25, 5 and 1 cm2), we obtain that visual acuity is inversely proportional to the area of the stimulus. Furthermore, visual acuity increases (decreases) in the same way as decreases (increases) the area of the stimulus. This relation should be expressed by an hyperbolic function.
Zusammenfassung
Wenn man den Abstand mißt, aus dem die feinen Einzelheiten der drei gestreiften Quadrate von 25, 5 und 1 cm2 in Abb. 3 eben erkennbar sind, ergibt es sich, daß die Sehschärfe umgekehrt proportional der Reizfläche ist, das heißt, daß sie mit zunehmender Reizfläche abnimmt und mit abnehmender zunimmt. Diese Abhängigkeit kann als hyperbolische Funktion dargestellt werden.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Findlay, J. M.: A spatial integration effect in visual acuity. Vision Res. 9, 157–166 (1969).
Le Grand, Y.: Optique physiologique. Paris: Editions de la Revue d'Optique 1952–1956.
Lindquist, E. F.: Statistical analysis in educational research. New York: Houghton Mifflin 1940.
Lit, A.: Visual acuity. Ann. Rev. Psychol. 19, 27–54 (1968).
Luckiesh, M., Moss, F. K.: The science of seeing. New York: Van Nostrand 1937.
Munsell, A. E. O.: Munsell Book of color. Baltimore: Munsell Color Co. 1929.
Riggs, L. A.: Visual acuity. In: Graham, C. H. (ed.), Vision and visual perception, p. 321–349. New York: Wiley 1965.
Tolansky, F.: Optical illusions. London: Pergamon Press 1964.
Westheimer, G.: Visual acuity. Ann. Rev. Psychol. 16, 359–380 (1965).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vicario, G. Visual acuity and stimulus area. Psychol. Forsch. 35, 17–26 (1971). https://doi.org/10.1007/BF00424471
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00424471