𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Visual acuity and stimulus area

✍ Scribed by Giovanni Vicario


Publisher
Guilford Publishing Inc
Year
1971
Tongue
English
Weight
810 KB
Volume
35
Category
Article
ISSN
0340-0727

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✦ Synopsis


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.

Zusammen/assung. Wenn man den Abstand miBt, aus dem die feinen Einzelheiten der drei gestreiften Quadrate yon 25, 5 und 1 cm ~ in Abb. 3 eben erkennbar sind, ergibt es sich, dab die SehschErfe umgekehrt proportional der Reizfl~che ist, das heiBt, dab sie mit zunehmender Reizfl~che abnimmt und mit abnehmender zunimmt. Diese Abh~ngigkeit kann als hyperbolische Funktion dargestellt werden.


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