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Visual evoked potential estimation of visual activity with a Laplacian derivation

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Abstract

Visual acuity was estimated with visual evoked potentials in 13 healthy subjects. A Laplacian derivation of 5 electrodes was used to improve the signal-to-noise ratio and to enhance striate cortical activity selectively. In 6 subjects, the Laplacian derivation gave a more reliable estimation of visual acuity than did a single midline derivation. In the other 7 subjects, the quality of both estimations was comparable.

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Authors and Affiliations

  1. The Netherlands Ophthalmic Research Institute, Amsterdam, The Netherlands

    Alexander P. A. Beers &  Henk Spekreijse

  2. Department of Ophthalmology, Academic Medical Centre, Amsterdam, The Netherlands

    Frans C. C. Riemslag

Authors
  1. Alexander P. A. Beers
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  2. Frans C. C. Riemslag
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  3. Henk Spekreijse
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Beers, A.P.A., Riemslag, F.C.C. & Spekreijse, H. Visual evoked potential estimation of visual activity with a Laplacian derivation. Doc Ophthalmol 79, 383–389 (1992). https://doi.org/10.1007/BF00160951

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  • DOI: https://doi.org/10.1007/BF00160951

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