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KENNETH N. OGLE, Ph.D.; JUDITH GROCH, B.S.

AMA Arch Ophthalmol. 1956;56(6):878-895.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Introduction

The extent to which a difference in the luminosities of the images in the two eyes can affect binocular vision and, in particular, stereoscopic depth perception has been an intriguing problem to research workers in vision for a long time.

The most striking effect, of course, is the Pulfrich stereophenomenon, in which the stimulus object is in motion relative to a fixed background. The bob of a swinging pendulum appears to move in a more or less elliptical path when the image of one eye is darkened by a filter. This phenomenon is usually explained by a decreased reaction time in the physiologic processes of one eye associated with the decreased intensity of its image. The second effect, which may be called "irradiation stereoscopy,"¹ was first discovered by Münster² in 1941 and later independently by Cibis and Haber.* In this effect, two separated squares of white cardboard, . . . [Full Text PDF of this Article]

Author Affiliations
Rochester, Minn.

Section of Biophysics and Biophysical Research, Mayo Clinic and Mayo Foundation. The Mayo Foundation is a part of the Graduate School of the University of Minnesota.

Footnotes
Received for publication May 12, 1956.

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