Related Experiment Videos
Isolation of scotopic human electroretinograms using color adaptation and pattern reversal stimuli
1Department of Psychology, Northeastern University, Boston, MA 02115.
Vision Research
|January 1, 1989
Abstract:
The human electroretinogram was recorded in response to alternations of a 500 nm checkerboard stimulus pattern presented against adaptation backgrounds of different wavelengths. A modification of Stiles' color adaptation paradigm was adapted to electroretinography. The results provided electrophysiological t.v.i. curves (threshold versus intensity curves) and permitted a determination of spectral sensitivity. The t.v.i. curves matched those seen in psychophysics. The spectral curve showed a close agreement with the scotopic CIE function.