Flicker ERGs Representing Chromaticity and Luminance Signals

Kremers J, Rodrigues AR, De Lima Silveira LC, Da Silva Filho M (2010)

Publication Status: Published

Publication Type: Journal article

Publication year: 2010

Journal

Investigative Ophthalmology & Visual Science Association for Research in Vision and Ophthalmology (ARVO)

Publisher: ASSOC RESEARCH VISION OPHTHALMOLOGY INC

Book Volume: 51

Pages Range: 577-587

Journal Issue: 1

DOI: 10.1167/iovs.09-3899

Abstract

PURPOSE. To test the hypothesis that electroretinograms (ERGs) reflect luminance activity when measured at high temporal frequencies and chromatic activity when measured near 12 Hz.METHODS. The authors measured the responses to stimuli in which the output of red and green light-emitting diodes was modulated in counterphase at different ratios, varying the luminance content in the stimulus while keeping the red-green chromatic contrast and its phase constant.RESULTS. The high temporal frequency electroretinography was determined mainly by the luminance contrast. At 12 Hz, electroretinographic response amplitudes and phases primarily reflected the red-green chromatic content of the stimulus. Control experiments, performed with a deuteranopic subject and with stimuli that silenced the rods and S-cones, excluded an explanation based on intrusion from rod-and S-cone-driven responses.CONCLUSIONS. It now is possible to perform noninvasive measurements of basic electrophysiological properties of the luminance and chromatic pathways on a retinal level, and their disease-related changes, in human observers. (Invest Ophthalmol Vis Sci. 20010;51:577-587) DOI:10.1167/iovs.09-3899

Authors with CRIS profile

Jan Kremers Professur für Experimentelle Augenheilkunde

Involved external institutions

Universidade Federal do Pará (UFPA) BR Brazil (BR)

How to cite

APA:

Kremers, J., Rodrigues, A.R., De Lima Silveira, L.C., & Da Silva Filho, M. (2010). Flicker ERGs Representing Chromaticity and Luminance Signals. Investigative Ophthalmology & Visual Science, 51(1), 577-587. https://doi.org/10.1167/iovs.09-3899

MLA:

Kremers, Jan, et al. "Flicker ERGs Representing Chromaticity and Luminance Signals." Investigative Ophthalmology & Visual Science 51.1 (2010): 577-587.

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