Titre
Visual illusions via neural dynamics: Wilson-Cowan-type models and the efficient representation principle.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Bertalmío, M.
Auteure/Auteur
Calatroni, L.
Auteure/Auteur
Franceschi, V.
Auteure/Auteur
Franceschiello, B.
Auteure/Auteur
Gomez Villa, A.
Auteure/Auteur
Prandi, D.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1522-1598
Statut éditorial
Publié
Date de publication
2020-05-01
Volume
123
Numéro
5
Première page
1606
Dernière page/numéro d’article
1618
Peer-reviewed
Oui
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
We reproduce suprathreshold perception phenomena, specifically visual illusions, by Wilson-Cowan (WC)-type models of neuronal dynamics. Our findings show that the ability to replicate the illusions considered is related to how well the neural activity equations comply with the efficient representation principle. Our first contribution consists in showing that the WC equations can reproduce a number of brightness and orientation-dependent illusions. Then we formally prove that there cannot be an energy functional that the WC dynamics are minimizing. This leads us to consider an alternative, variational modeling, which has been previously employed for local histogram equalization (LHE) tasks. To adapt our model to the architecture of V1, we perform an extension that has an explicit dependence on local image orientation. Finally, we report several numerical experiments showing that LHE provides a better reproduction of visual illusions than the original WC formulation, and that its cortical extension is capable also to reproduce complex orientation-dependent illusions.NEW & NOTEWORTHY We show that the Wilson-Cowan equations can reproduce a number of brightness and orientation-dependent illusions. Then we formally prove that there cannot be an energy functional that the Wilson-Cowan equations are minimizing, making them suboptimal with respect to the efficient representation principle. We thus propose a slight modification that is consistent with such principle and show that this provides a better reproduction of visual illusions than the original Wilson-Cowan formulation. We also consider the cortical extension of both models to deal with more complex orientation-dependent illusions.
PID Serval
serval:BIB_489E7A50A3E5
PMID
Date de création
2020-03-14T13:28:39.943Z
Date de création dans IRIS
2025-05-20T18:25:15Z
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Nom
Bertalmio - Visual illusions via neural dynamics- Wilson-Cowan-type models and the efficient representation principle - JNP - 2020.pdf
Version du manuscrit
published
Licence
https://iris.unil.ch/disclaimer
Taille
3.41 MB
Format
Adobe PDF
PID Serval
serval:BIB_489E7A50A3E5.P002
Somme de contrôle
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