SOME OBSERVATIONS AND MEASUREMENTS OF THE PULFRICH PHENOMENON.

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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

Author(s):
Harker, George S. ; O'neal, Orvil L., Jr
Author Organization(s):
ARMY MEDICAL RESEARCH LAB FORT KNOX KY
Descriptive Note:
Interim rept.,
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USAMRL-728
Project Number(s):
DA-3-A-014501-A-74-D
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*VISION, TEST EQUIPMENT), SPACE PERCEPTION, OPHTHALMOLOGY, VISUAL PERCEPTION, PSYCHOPHYSICS, VISUAL ACUITY, ANOMALIES
Field(s)/Group(s):
Psychology, Medicine and Medical Research, Medical Facilities, Equipment and Supplies
Report Date:
1967 May 09