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. 2023 Jul 31;3:1230084. doi: 10.3389/fopht.2023.1230084

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Copyright © 2023 Songco-Aguas, Grimes and Rieke

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Rod-cone interference can be constructive or destructive depending on the relative timing of the retinal responses. (A) Responses of an On Parasol RGC to 8 Hz flicker when the rod and cone stimuli are in-phase (left) or anti-phase (right). (B) Response amplitudes collected from 6 On Parasol RGCs to rod, cone or combined flicker for a range of phase shifts between the stimuli. Responses to 8 Hz flicker shift from constructive to destructive after introduction of a phase shift. (C, D) The same demonstration as (A, B), but this time using 4 Hz flicker. Responses to 4 Hz flicker shift from destructive to constructive after introduction of a phase shift.