Abstract
A target screen stimulus takes into account the necessity of larger checkerboard patterns with rising eccentricity. The target pattern should be calculated to fit the retinocortical magnification factor. This proposition is based on the working hypothesis that for maximal visual evoked potential (VEP) amplitude the stimulus should appear on the cortex as an undistorted checkerboard pattern. We describe the cortical response elicited by four different target screen stimuli based on a similar algorithm. No significant difference to normal checkerboard was found.
Similar content being viewed by others
References
Drasdo N: The neural representation of visual space. Nature 266:554–556 1977
Galloway N: Ophthalmic electrodiagnostic. In Vol 1. Trevor-Ropers G (ed.). G. Saunders, London, 1975
Harter MR: Evoked cortical responses to checkerboard patterns: effect of check-size as a function of retinal eccentricity. Vision Res 10:1365–1376 1970
McCormack G and Marg E: Computer-assisted eye examination. 2. Visual evoked response and meridional refractometry. Am J Optom 50(11):899–903 1970
Rover J, Schaubele G and Berndt K: Macula and periphery: their contribution to the visual evoked potentials (VEP) in man. Albrecht von Graefes Arch Klin Ophthalmol 214:47–51 1980
Spekreijse H and Berg TJTP van den: Interaction between colour and spatial coded processes converging to retinal ganglion cells in goldfish. J Physiol 215:679–692 1971
Spekreijse H, Tweel LH van der and Zuidema T: Contrast evoked responses in man. Vision Res 13:1577–1601 1973
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Röver, J., Bach, M. Visual evoked potentials to various check patterns. Doc Ophthalmol 59, 143–147 (1985). https://doi.org/10.1007/BF00160610
Issue Date:
DOI: https://doi.org/10.1007/BF00160610