Comparison of visual quantities in untrained neural networks

Summary: The ability to compare quantities of visual objects with two distinct measures, proportion and difference, is observed even in newborn animals. However, how this function originates in the brain, even before visual experience, remains unknown. Here, we propose a model in which neuronal tuni...

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Main Authors: Hyeonsu Lee, Woochul Choi, Dongil Lee, Se-Bum Paik
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:Cell Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211124723009117
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author Hyeonsu Lee
Woochul Choi
Dongil Lee
Se-Bum Paik
author_facet Hyeonsu Lee
Woochul Choi
Dongil Lee
Se-Bum Paik
author_sort Hyeonsu Lee
collection DOAJ
description Summary: The ability to compare quantities of visual objects with two distinct measures, proportion and difference, is observed even in newborn animals. However, how this function originates in the brain, even before visual experience, remains unknown. Here, we propose a model in which neuronal tuning for quantity comparisons can arise spontaneously in completely untrained neural circuits. Using a biologically inspired model neural network, we find that single units selective to proportions and differences between visual quantities emerge in randomly initialized feedforward wirings and that they enable the network to perform quantity comparison tasks. Notably, we find that two distinct tunings to proportion and difference originate from a random summation of monotonic, nonlinear neural activities and that a slight difference in the nonlinear response function determines the type of measure. Our results suggest that visual quantity comparisons are primitive types of functions that can emerge spontaneously before learning in young brains.
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spelling doaj.art-59b2134810ab46b2b5dfd70dec265fe82023-08-31T05:02:07ZengElsevierCell Reports2211-12472023-08-01428112900Comparison of visual quantities in untrained neural networksHyeonsu Lee0Woochul Choi1Dongil Lee2Se-Bum Paik3Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of KoreaDepartment of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of KoreaDepartment of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of KoreaDepartment of Brain and Cognitive Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea; Corresponding authorSummary: The ability to compare quantities of visual objects with two distinct measures, proportion and difference, is observed even in newborn animals. However, how this function originates in the brain, even before visual experience, remains unknown. Here, we propose a model in which neuronal tuning for quantity comparisons can arise spontaneously in completely untrained neural circuits. Using a biologically inspired model neural network, we find that single units selective to proportions and differences between visual quantities emerge in randomly initialized feedforward wirings and that they enable the network to perform quantity comparison tasks. Notably, we find that two distinct tunings to proportion and difference originate from a random summation of monotonic, nonlinear neural activities and that a slight difference in the nonlinear response function determines the type of measure. Our results suggest that visual quantity comparisons are primitive types of functions that can emerge spontaneously before learning in young brains.http://www.sciencedirect.com/science/article/pii/S2211124723009117CP: Neuroscience
spellingShingle Hyeonsu Lee
Woochul Choi
Dongil Lee
Se-Bum Paik
Comparison of visual quantities in untrained neural networks
Cell Reports
CP: Neuroscience
title Comparison of visual quantities in untrained neural networks
title_full Comparison of visual quantities in untrained neural networks
title_fullStr Comparison of visual quantities in untrained neural networks
title_full_unstemmed Comparison of visual quantities in untrained neural networks
title_short Comparison of visual quantities in untrained neural networks
title_sort comparison of visual quantities in untrained neural networks
topic CP: Neuroscience
url http://www.sciencedirect.com/science/article/pii/S2211124723009117
work_keys_str_mv AT hyeonsulee comparisonofvisualquantitiesinuntrainedneuralnetworks
AT woochulchoi comparisonofvisualquantitiesinuntrainedneuralnetworks
AT dongillee comparisonofvisualquantitiesinuntrainedneuralnetworks
AT sebumpaik comparisonofvisualquantitiesinuntrainedneuralnetworks