The human focal electroretinogram as a function of stimulus area

  title={The human focal electroretinogram as a function of stimulus area},
  author={Pierangelo Errico and Benedetto Falsini and Vittorio Porciatti and Francesco Maria Cefal{\'A}},
  journal={Documenta Ophthalmologica},
Focal electroretinograms to on-off luminance modulation (2.7 Hz) of uniform fields with a different area (144-2.25 deg2) centered on the fovea were recorded in two young normal subjects. The electroretinogram responses typically consisted of an a-wave, a b-wave, a PIII component and a d-wave. The concentric reduction of the test field size caused progressive amplitude decrement of all components, while their response density increased. The spatial summation properties of the b-wave differed… CONTINUE READING

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