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bioRxiv · 10.1101/2022.03.17.484829

Temporal integration of rod signals in luminance and chromatic pathways

Cormenzana Mendez, I.·Martin, A.·O'Donell, B.·Cao, D.·Barrionuevo, P. A.
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Abstract

We assessed how rod excitation (R) affects luminance (L+M+S) and chromatic [L/(L+M)] reaction times (RTs). A four-primary display based on the overlapped images of two spectrally-modified monitors, which allowed specific or combined [L+M+S+R, L/(L+M) + R] photoreceptor stimulation, was used to present a C-target stimulus differing from the background only by the selected stimulation. For the luminance pathway, rod input increased RTs, suggesting a suppressive rod-cone interaction. The responses of the chromatic pathway were faster when rods were involved, suggesting a major role of rods in mesopic color perception.

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Cormenzana Mendez, I., Martin, A., O'Donell, B., Cao, D., Barrionuevo, P. A.. 2022-03-19. Temporal integration of rod signals in luminance and chromatic pathways. https://doi.org/10.1101/2022.03.17.484829

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