Cited by 63Visual perception and processing mechanismsRetinal Development and DisordersNeuroscience and Neuropharmacology Research

Pathway-specific asymmetries between on and off visual signals

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Ravi, Sneha, Ahn, Daniel, Greschner, Martin, Chichilnisky, E. J., Field, Greg D.·2018·The Journal of Neuroscience

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Abstract

Visual processing is largely organized into ON and OFF pathways that signal stimulus increments and decrements, respectively. These pathways exhibit natural pairings based on morphological and physiological similarities, such as ON and OFF α-ganglion cells in the mammalian retina. Several studies have noted asymmetries in the properties of ON and OFF pathways. For example, the spatial receptive fields (RFs) of OFF α-cells are systematically smaller than ON α-cells. Analysis of natural scenes suggests that these asymmetries are optimal for visual encoding. To test the generality of ON/OFF asymmetries, we measured the spatiotemporal RF properties of multiple RGC types in rat retina. Through a quantitative and serial classification, we identified three functional pairs of ON and OFF RGCs. We analyzed the structure of their RFs and compared spatial integration, temporal integration, and gain across ON and OFF pairs. Similar to previous results from the cat and primate, RGC types with larger spatial RFs exhibited briefer temporal integration and higher gain. However, each pair of ON and OFF RGC types exhibited distinct asymmetric relationships between RF properties, some of which were opposite to the findings of previous reports. These results reveal the functional organization of six RGC types in the rodent retina and indicate that ON/OFF asymmetries are pathway specific. SIGNIFICANCE STATEMENT Circuits that process sensory input frequently process increments separately from decrements, so-called ON and OFF responses. Theoretical studies indicate that this separation, and associated asymmetries in ON and OFF pathways, may be beneficial for encoding natural stimuli. However, the generality of ON and OFF pathway asymmetries has not been tested. Here we compare the functional properties of three distinct pairs of ON and OFF pathways in the rodent retina and show that their asymmetries are pathway specific. These results provide a new view on the partitioning of vision across diverse ON and OFF signaling pathways.

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Crossref · 10.1523/jneurosci.2008-18.2018

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  • In the rat retina, putative ON brisk transient and OFF brisk transient cells formed reasonably complete mosaics covering the region recorded and had properties broadly resembling those of ON and OFF parasol cells in the macaque retina.

    “In the rat retina, analysis was restricted to two RGC types – putative ON brisk transient and OFF brisk transient cells identified by their receptive fields and spiking autocorrelation (Ravi et al., 2018) – which formed reasonably complete mosaics covering the region recorded and had properties broadly resembling those of ON and OFF parasol cells in the macaque retina.”

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  1. Dacey D (2004) Origins of perception: retinal ganglion cell diversity and the creation of parallel visual pathways. In: The cognitive neurosciences (Gaz- zaniga MS, ed), pp 281-301. Cambridge, MA: MIT.

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Authors
Ravi, S., Ahn, D., Greschner, M., Chichilnisky, E. J., & Field, G. D.
Affiliations
  • Duke University (US)
  • Salk Institute for Biological Studies (US)
  • Carl von Ossietzky Universität Oldenburg (DE)
  • Stanford Medicine (US)
Venue
The Journal of Neuroscience
Published
2018-09-24
Volume
38
Issue
45
Pages
9728-9740
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2952238330
Cited by
63
References
101
Citations by year
2026: 5 · 2025: 6 · 2024: 10 · 2023: 7 · 2022: 14 · 2021: 7 · 2020: 5 · 2019: 6 · 2018: 2 · 2017: 1
FWCI
2.98
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Whitehall Foundation
  • Karl Kirchgessner Foundation
  • National Institutes of Health
  • National Eye Institute (P30EY019005, R01EY017992, R01EY027193, R01EY024567, R01EY021271)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
ON and OFF pathways, retinal ganglion cells, receptive fields, spatial integration, temporal integration, gain, rodent retina
MeSH terms
Action Potentials, Animals, Photic Stimulation, Random Allocation, Retinal Ganglion Cells, Visual Pathways, Rats, Long-Evans, Rats

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