How We See Black and White: The Role of Midget Ganglion Cells
According to classical opponent color theory, hue sensations are mediated by spectrally opponent neurons that are excited by some wavelengths of light and inhibited by others, while black-and-white sensations are mediated by spectrally non-opponent neurons that respond with the same sign to all wave...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Neuroanatomy |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fnana.2022.944762/full |
| _version_ | 1818524086838493184 |
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| author | Dragos Rezeanu Maureen Neitz Jay Neitz |
| author_facet | Dragos Rezeanu Maureen Neitz Jay Neitz |
| author_sort | Dragos Rezeanu |
| collection | DOAJ |
| description | According to classical opponent color theory, hue sensations are mediated by spectrally opponent neurons that are excited by some wavelengths of light and inhibited by others, while black-and-white sensations are mediated by spectrally non-opponent neurons that respond with the same sign to all wavelengths. However, careful consideration of the morphology and physiology of spectrally opponent L vs. M midget retinal ganglion cells (RGCs) in the primate retina indicates that they are ideally suited to mediate black-and-white sensations and poorly suited to mediate color. Here we present a computational model that demonstrates how the cortex could use unsupervised learning to efficiently separate the signals from L vs. M midget RGCs into distinct signals for black and white based only correlation of activity over time. The model also reveals why it is unlikely that these same ganglion cells could simultaneously mediate our perception of red and green, and shows how, in theory, a separate small population of midget RGCs with input from S, M, and L cones would be ideally suited to mediating hue perception. |
| first_indexed | 2024-12-11T05:52:49Z |
| format | Article |
| id | doaj.art-64a9ce4888344820b626c02da96fbdf9 |
| institution | Directory Open Access Journal |
| issn | 1662-5129 |
| language | English |
| last_indexed | 2024-12-11T05:52:49Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroanatomy |
| spelling | doaj.art-64a9ce4888344820b626c02da96fbdf92022-12-22T01:18:46ZengFrontiers Media S.A.Frontiers in Neuroanatomy1662-51292022-07-011610.3389/fnana.2022.944762944762How We See Black and White: The Role of Midget Ganglion CellsDragos RezeanuMaureen NeitzJay NeitzAccording to classical opponent color theory, hue sensations are mediated by spectrally opponent neurons that are excited by some wavelengths of light and inhibited by others, while black-and-white sensations are mediated by spectrally non-opponent neurons that respond with the same sign to all wavelengths. However, careful consideration of the morphology and physiology of spectrally opponent L vs. M midget retinal ganglion cells (RGCs) in the primate retina indicates that they are ideally suited to mediate black-and-white sensations and poorly suited to mediate color. Here we present a computational model that demonstrates how the cortex could use unsupervised learning to efficiently separate the signals from L vs. M midget RGCs into distinct signals for black and white based only correlation of activity over time. The model also reveals why it is unlikely that these same ganglion cells could simultaneously mediate our perception of red and green, and shows how, in theory, a separate small population of midget RGCs with input from S, M, and L cones would be ideally suited to mediating hue perception.https://www.frontiersin.org/articles/10.3389/fnana.2022.944762/fullblack-and-white visioncolor visioncomputational neuroscienceretinal ganglion cell (RGC)midget ganglion cellprimate retina |
| spellingShingle | Dragos Rezeanu Maureen Neitz Jay Neitz How We See Black and White: The Role of Midget Ganglion Cells Frontiers in Neuroanatomy black-and-white vision color vision computational neuroscience retinal ganglion cell (RGC) midget ganglion cell primate retina |
| title | How We See Black and White: The Role of Midget Ganglion Cells |
| title_full | How We See Black and White: The Role of Midget Ganglion Cells |
| title_fullStr | How We See Black and White: The Role of Midget Ganglion Cells |
| title_full_unstemmed | How We See Black and White: The Role of Midget Ganglion Cells |
| title_short | How We See Black and White: The Role of Midget Ganglion Cells |
| title_sort | how we see black and white the role of midget ganglion cells |
| topic | black-and-white vision color vision computational neuroscience retinal ganglion cell (RGC) midget ganglion cell primate retina |
| url | https://www.frontiersin.org/articles/10.3389/fnana.2022.944762/full |
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