Correlated cone noise decreases rod signal contributions to the post-receptoral pathways | Zendy

Amithavikram R. Hathibelagal | Zendy; Beatrix Feigl | Zendy; Andrew J. Zele | Zendy

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Correlated cone noise decreases rod signal contributions to the post-receptoral pathways

Author(s) -

Amithavikram R. Hathibelagal,

Beatrix Feigl,

Andrew J. Zele

Publication year - 2018

Publication title -

journal of the optical society of america a

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.803

H-Index - 158

eISSN - 1520-8532

pISSN - 1084-7529

DOI - 10.1364/josaa.35.000b78

Subject(s) - parvocellular cell , mesopic vision , optics , physics , signal (programming language) , noise (video) , biology , retina , photopic vision , artificial intelligence , microbiology and biotechnology , computer science , image (mathematics) , nucleus , programming language

This study investigated how invisible extrinsic temporal white noise that correlates with the activity of one of the three [magnocellular (MC), parvocellular (PC), or koniocellular (KC)] post-receptoral pathways alters mesopic rod signaling. A four-primary photostimulator provided independent control of the rod and three cone photoreceptor excitations. The rod contributions to the three post-receptoral pathways were estimated by perceptually matching a 20% contrast rod pulse by independently varying the LMS (MC pathway), +L-M (PC pathway), and S-cone (KC pathway) excitations. We show that extrinsic cone noise caused a predominant decrease in the overall magnitude and ratio of the rod contributions to each pathway. Thus, the relative cone activity in the post-receptoral pathways determines the relative mesopic rod inputs to each pathway.

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