Cargando…

The color phi phenomenon: Not so special, after all?

We show how anomalous time reversal of stimuli and their associated responses can exist in very small connectionist models. These networks are built from dynamical toy model neurons which adhere to a minimal set of biologically plausible properties. The appearance of a “ghost” response, temporally a...

Descripción completa

Detalles Bibliográficos
Autores principales: Keuninckx, Lars, Cleeremans, Axel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8445478/
https://www.ncbi.nlm.nih.gov/pubmed/34478441
http://dx.doi.org/10.1371/journal.pcbi.1009344
_version_ 1784568668957442048
author Keuninckx, Lars
Cleeremans, Axel
author_facet Keuninckx, Lars
Cleeremans, Axel
author_sort Keuninckx, Lars
collection PubMed
description We show how anomalous time reversal of stimuli and their associated responses can exist in very small connectionist models. These networks are built from dynamical toy model neurons which adhere to a minimal set of biologically plausible properties. The appearance of a “ghost” response, temporally and spatially located in between responses caused by actual stimuli, as in the phi phenomenon, is demonstrated in a similar small network, where it is caused by priming and long-distance feedforward paths. We then demonstrate that the color phi phenomenon can be present in an echo state network, a recurrent neural network, without explicitly training for the presence of the effect, such that it emerges as an artifact of the dynamical processing. Our results suggest that the color phi phenomenon might simply be a feature of the inherent dynamical and nonlinear sensory processing in the brain and in and of itself is not related to consciousness.
format Online
Article
Text
id pubmed-8445478
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-84454782021-09-17 The color phi phenomenon: Not so special, after all? Keuninckx, Lars Cleeremans, Axel PLoS Comput Biol Research Article We show how anomalous time reversal of stimuli and their associated responses can exist in very small connectionist models. These networks are built from dynamical toy model neurons which adhere to a minimal set of biologically plausible properties. The appearance of a “ghost” response, temporally and spatially located in between responses caused by actual stimuli, as in the phi phenomenon, is demonstrated in a similar small network, where it is caused by priming and long-distance feedforward paths. We then demonstrate that the color phi phenomenon can be present in an echo state network, a recurrent neural network, without explicitly training for the presence of the effect, such that it emerges as an artifact of the dynamical processing. Our results suggest that the color phi phenomenon might simply be a feature of the inherent dynamical and nonlinear sensory processing in the brain and in and of itself is not related to consciousness. Public Library of Science 2021-09-03 /pmc/articles/PMC8445478/ /pubmed/34478441 http://dx.doi.org/10.1371/journal.pcbi.1009344 Text en © 2021 Keuninckx, Cleeremans https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Keuninckx, Lars
Cleeremans, Axel
The color phi phenomenon: Not so special, after all?
title The color phi phenomenon: Not so special, after all?
title_full The color phi phenomenon: Not so special, after all?
title_fullStr The color phi phenomenon: Not so special, after all?
title_full_unstemmed The color phi phenomenon: Not so special, after all?
title_short The color phi phenomenon: Not so special, after all?
title_sort color phi phenomenon: not so special, after all?
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8445478/
https://www.ncbi.nlm.nih.gov/pubmed/34478441
http://dx.doi.org/10.1371/journal.pcbi.1009344
work_keys_str_mv AT keuninckxlars thecolorphiphenomenonnotsospecialafterall
AT cleeremansaxel thecolorphiphenomenonnotsospecialafterall
AT keuninckxlars colorphiphenomenonnotsospecialafterall
AT cleeremansaxel colorphiphenomenonnotsospecialafterall