Object identity representation occurs early in the archerfish visual system

Abstract Archerfish hunt by shooting a jet of water at aerial targets, a behavior used to study their visual processing by presenting a set of images on a screen above the water tank and observing the behavioral response. Building on this unique behavior, it was recently shown that archerfish can be...

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Main Authors: Svetlana Volotsky, Ronen Segev
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-88660-7
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author Svetlana Volotsky
Ronen Segev
author_facet Svetlana Volotsky
Ronen Segev
author_sort Svetlana Volotsky
collection DOAJ
description Abstract Archerfish hunt by shooting a jet of water at aerial targets, a behavior used to study their visual processing by presenting a set of images on a screen above the water tank and observing the behavioral response. Building on this unique behavior, it was recently shown that archerfish can be trained to distinguish between different object categories by generalizing from examples. Analysis of the archerfish’s behavior revealed that the fish visual system relies on a small set of visual features for categorization and is more sensitive to object contours than to textures. To understand the neural basis of this object recognition, we investigated the neural representation of features and objects in the archerfish optic tectum using recording of single cells. We found that, although the optic tectum is an early stage of visual processing, a small population of neurons in this region contains information about the object category. This contrasts with the primate visual system, where the representation of objects emerges only at later stages of visual processing. These results suggest that early-stage feature extraction and object categorization in archerfish might represent a form of specialized visual processing. This contributes to a broader understanding of visual processing across taxa.
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spelling doaj-art-7a92e0b293b54c8eaf40f1a5e9bb92452025-02-09T12:31:38ZengNature PortfolioScientific Reports2045-23222025-02-0115111310.1038/s41598-025-88660-7Object identity representation occurs early in the archerfish visual systemSvetlana Volotsky0Ronen Segev1Department of Biomedical Engineering, Ben-Gurion University of the NegevDepartment of Biomedical Engineering, Ben-Gurion University of the NegevAbstract Archerfish hunt by shooting a jet of water at aerial targets, a behavior used to study their visual processing by presenting a set of images on a screen above the water tank and observing the behavioral response. Building on this unique behavior, it was recently shown that archerfish can be trained to distinguish between different object categories by generalizing from examples. Analysis of the archerfish’s behavior revealed that the fish visual system relies on a small set of visual features for categorization and is more sensitive to object contours than to textures. To understand the neural basis of this object recognition, we investigated the neural representation of features and objects in the archerfish optic tectum using recording of single cells. We found that, although the optic tectum is an early stage of visual processing, a small population of neurons in this region contains information about the object category. This contrasts with the primate visual system, where the representation of objects emerges only at later stages of visual processing. These results suggest that early-stage feature extraction and object categorization in archerfish might represent a form of specialized visual processing. This contributes to a broader understanding of visual processing across taxa.https://doi.org/10.1038/s41598-025-88660-7
spellingShingle Svetlana Volotsky
Ronen Segev
Object identity representation occurs early in the archerfish visual system
Scientific Reports
title Object identity representation occurs early in the archerfish visual system
title_full Object identity representation occurs early in the archerfish visual system
title_fullStr Object identity representation occurs early in the archerfish visual system
title_full_unstemmed Object identity representation occurs early in the archerfish visual system
title_short Object identity representation occurs early in the archerfish visual system
title_sort object identity representation occurs early in the archerfish visual system
url https://doi.org/10.1038/s41598-025-88660-7
work_keys_str_mv AT svetlanavolotsky objectidentityrepresentationoccursearlyinthearcherfishvisualsystem
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