Visual evoked retinal and occipital potentials

✍ Scribed by Richard M. Copenhaver; Gilbert D. Beinhocker; Nathan W. Perry

• Publisher: Springer-Verlag
• Year: 1964
• Tongue: English
• Weight: 412 KB
• Volume: 18
• Category: Article
• ISSN: 0012-4486
• DOI: 10.1007/bf00160599

✦ Synopsis

With 4 figures

The recording of evoked occipital potentials in response to small flickering light sources located at various points in the visual field and demonstrating detection of the blindspot has previously been reported by COPENHAVER & BEINIIOCKER (1963).

ARMINGTON, TEPAS, KROPFL & HENGST (1961) and GOURAS, GUNKEL & JONES (1962) have demonstrated that spatial differences and even retinal profiles may be obtained by using computers to record the evoked retinal potentials from small flickering light stimuli. Although spatial differences were evident, and in some instances clinically informative, the resolution was insufficient to allow blindspot detection.

It was the purpose of this study to attempt a kind of retinal electroperimetry using techniques previous applied for occipital recording in the hope of obtaining a degree of spatial resolution capable of demonstrating the blindspot scotoma. METHOD * GILBERT D. BEINHOCKER resides in Boston, Massachussetts. ** The computer used in this investigation was devclopcd and providcd by the Syber Corporation of Natick, Mass., U.S.A.