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The Evolution of Visual Roles – Ancient Vision Versus Object Vision

Just like other complex biological features, image vision (multi-pixel light sensing) did not evolve suddenly. Animal visual systems have a long prehistory of non-imaging light sensitivity. The first spatial vision was likely very crude with only few pixels, and evolved to improve orientation behavi...

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Autor principal: Nilsson, Dan-Eric
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863595/
https://www.ncbi.nlm.nih.gov/pubmed/35221931
http://dx.doi.org/10.3389/fnana.2022.789375
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author Nilsson, Dan-Eric
author_facet Nilsson, Dan-Eric
author_sort Nilsson, Dan-Eric
collection PubMed
description Just like other complex biological features, image vision (multi-pixel light sensing) did not evolve suddenly. Animal visual systems have a long prehistory of non-imaging light sensitivity. The first spatial vision was likely very crude with only few pixels, and evolved to improve orientation behaviors previously supported by single-channel directional photoreception. The origin of image vision was simply a switch from single to multiple spatial channels, which improved the behaviors for finding a suitable habitat and position itself within it. Orientation based on spatial vision obviously involves active guidance of behaviors but, by necessity, also assessment of habitat suitability and environmental conditions. These conditions are crucial for deciding when to forage, reproduce, seek shelter, rest, etc. When spatial resolution became good enough to see other animals and interact with them, a whole range of new visual roles emerged: pursuit, escape, communication and other interactions. All these new visual roles require entirely new types of visual processing. Objects needed to be separated from the background, identified and classified to make the correct choice of interaction. Object detection and identification can be used actively to guide behaviors but of course also to assess the over-all situation. Visual roles can thus be classified as either ancient non-object-based tasks, or object vision. Each of these two categories can also be further divided into active visual tasks and visual assessment tasks. This generates four major categories of vision into which I propose that all visual roles can be categorized.
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spelling pubmed-88635952022-02-24 The Evolution of Visual Roles – Ancient Vision Versus Object Vision Nilsson, Dan-Eric Front Neuroanat Neuroanatomy Just like other complex biological features, image vision (multi-pixel light sensing) did not evolve suddenly. Animal visual systems have a long prehistory of non-imaging light sensitivity. The first spatial vision was likely very crude with only few pixels, and evolved to improve orientation behaviors previously supported by single-channel directional photoreception. The origin of image vision was simply a switch from single to multiple spatial channels, which improved the behaviors for finding a suitable habitat and position itself within it. Orientation based on spatial vision obviously involves active guidance of behaviors but, by necessity, also assessment of habitat suitability and environmental conditions. These conditions are crucial for deciding when to forage, reproduce, seek shelter, rest, etc. When spatial resolution became good enough to see other animals and interact with them, a whole range of new visual roles emerged: pursuit, escape, communication and other interactions. All these new visual roles require entirely new types of visual processing. Objects needed to be separated from the background, identified and classified to make the correct choice of interaction. Object detection and identification can be used actively to guide behaviors but of course also to assess the over-all situation. Visual roles can thus be classified as either ancient non-object-based tasks, or object vision. Each of these two categories can also be further divided into active visual tasks and visual assessment tasks. This generates four major categories of vision into which I propose that all visual roles can be categorized. Frontiers Media S.A. 2022-02-09 /pmc/articles/PMC8863595/ /pubmed/35221931 http://dx.doi.org/10.3389/fnana.2022.789375 Text en Copyright © 2022 Nilsson. https://creativecommons.org/licenses/by/4.0/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.
spellingShingle Neuroanatomy
Nilsson, Dan-Eric
The Evolution of Visual Roles – Ancient Vision Versus Object Vision
title The Evolution of Visual Roles – Ancient Vision Versus Object Vision
title_full The Evolution of Visual Roles – Ancient Vision Versus Object Vision
title_fullStr The Evolution of Visual Roles – Ancient Vision Versus Object Vision
title_full_unstemmed The Evolution of Visual Roles – Ancient Vision Versus Object Vision
title_short The Evolution of Visual Roles – Ancient Vision Versus Object Vision
title_sort evolution of visual roles – ancient vision versus object vision
topic Neuroanatomy
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863595/
https://www.ncbi.nlm.nih.gov/pubmed/35221931
http://dx.doi.org/10.3389/fnana.2022.789375
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