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, te...
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Public Library of Science (PLoS)
2021
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oai:doaj.org-article:fc6b007e4f614690acf150e7133987c22021-12-02T19:57:51ZThe color phi phenomenon: Not so special, after all?1553-734X1553-735810.1371/journal.pcbi.1009344https://doaj.org/article/fc6b007e4f614690acf150e7133987c22021-09-01T00:00:00Zhttps://doi.org/10.1371/journal.pcbi.1009344https://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358We 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.Lars KeuninckxAxel CleeremansPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 17, Iss 9, p e1009344 (2021) |
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Biology (General) QH301-705.5 |
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Biology (General) QH301-705.5 Lars Keuninckx Axel Cleeremans The color phi phenomenon: Not so special, after all? |
| 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 |
article |
| author |
Lars Keuninckx Axel Cleeremans |
| author_facet |
Lars Keuninckx Axel Cleeremans |
| author_sort |
Lars Keuninckx |
| title |
The color phi phenomenon: Not so special, after all? |
| title_short |
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_sort |
color phi phenomenon: not so special, after all? |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2021 |
| url |
https://doaj.org/article/fc6b007e4f614690acf150e7133987c2 |
| work_keys_str_mv |
AT larskeuninckx thecolorphiphenomenonnotsospecialafterall AT axelcleeremans thecolorphiphenomenonnotsospecialafterall AT larskeuninckx colorphiphenomenonnotsospecialafterall AT axelcleeremans colorphiphenomenonnotsospecialafterall |
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1718375818660413440 |