Abstract

We modeled the spatial-frequency sensitivity of the human pattern-reversal electroretinogram (PERG) with the linear, two-parameter, spatially bandpass model of Kelly [ J. Opt. Soc. Am. A 2, 810 ( 1985)]. In the model temporal linearity or linearity with luminance is not assumed, but linearity with contrast is assumed. Measurements relating PERG amplitudes to stimulus element size were taken from 13 earlier reports. Stimuli were two-dimensional Fourier analyzed. The bandpass model fitted well and thus supported linearity (spatial superposition) and suggested that large PERG’s to large checks (low-pass data) reflect mainly responses to higher-spatial-frequency stimulus components.

© 1991 Optical Society of America

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