SOME OBSERVATIONS AND MEASUREMENTS OF THE PULFRICH PHENOMENON.
Abstract
The Pulfrich pendulum was evaluated as a potential screening device for the detection of anomalies of binocular vision. For this purpose, a booth was set up at the Kentucky State Fair (1964) and the general public invited to observe the pendulum and record their responses with the equipment provided. The obtained results indicate that a clear dichotomy can be achieved between those who have binocular vision and those who do not. However, gradations of binocular vision from poor to good cannot be achieved with the pendulum as presently understood. Contrary to explanatory theory the characteristic seen shape of the seen pendulum path was asymmetrical following the rule that the path was displaced away from the observer on the side of the filtered eye. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 09, 1967
- Accession Number
- AD0652705
Entities
People
- George S. Harker
- Orvil L. O'neal Jr
Organizations
- United States Army Medical Research Laboratory