Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration
Perceptual multistability is a phenomenon in which alternate interpretations of a fixed stimulus are perceived intermittently. Although correlates between activity in specific cortical areas and perception have been found, the complex patterns of activity and the underlying mechanisms that gate mult...
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| Format: | Online |
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Springer US
2013
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3950608/ |
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pubmed-39506082014-03-20 Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration Rankin, J. Meso, A. I. Masson, G. S. Faugeras, O. Kornprobst, P. Article Perceptual multistability is a phenomenon in which alternate interpretations of a fixed stimulus are perceived intermittently. Although correlates between activity in specific cortical areas and perception have been found, the complex patterns of activity and the underlying mechanisms that gate multistable perception are little understood. Here, we present a neural field competition model in which competing states are represented in a continuous feature space. Bifurcation analysis is used to describe the different types of complex spatio-temporal dynamics produced by the model in terms of several parameters and for different inputs. The dynamics of the model was then compared to human perception investigated psychophysically during long presentations of an ambiguous, multistable motion pattern known as the barberpole illusion. In order to do this, the model is operated in a parameter range where known physiological response properties are reproduced whilst also working close to bifurcation. The model accounts for characteristic behaviour from the psychophysical experiments in terms of the type of switching observed and changes in the rate of switching with respect to contrast. In this way, the modelling study sheds light on the underlying mechanisms that drive perceptual switching in different contrast regimes. The general approach presented is applicable to a broad range of perceptual competition problems in which spatial interactions play a role. Springer US 2013-09-07 2014 /pmc/articles/PMC3950608/ /pubmed/24014258 http://dx.doi.org/10.1007/s10827-013-0465-5 Text en © The Author(s) 2013 Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
Rankin, J. Meso, A. I. Masson, G. S. Faugeras, O. Kornprobst, P. |
| spellingShingle |
Rankin, J. Meso, A. I. Masson, G. S. Faugeras, O. Kornprobst, P. Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| author_facet |
Rankin, J. Meso, A. I. Masson, G. S. Faugeras, O. Kornprobst, P. |
| author_sort |
Rankin, J. |
| title |
Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| title_short |
Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| title_full |
Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| title_fullStr |
Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| title_full_unstemmed |
Bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| title_sort |
bifurcation study of a neural field competition model with an application to perceptual switching in motion integration |
| description |
Perceptual multistability is a phenomenon in which alternate interpretations of a fixed stimulus are perceived intermittently. Although correlates between activity in specific cortical areas and perception have been found, the complex patterns of activity and the underlying mechanisms that gate multistable perception are little understood. Here, we present a neural field competition model in which competing states are represented in a continuous feature space. Bifurcation analysis is used to describe the different types of complex spatio-temporal dynamics produced by the model in terms of several parameters and for different inputs. The dynamics of the model was then compared to human perception investigated psychophysically during long presentations of an ambiguous, multistable motion pattern known as the barberpole illusion. In order to do this, the model is operated in a parameter range where known physiological response properties are reproduced whilst also working close to bifurcation. The model accounts for characteristic behaviour from the psychophysical experiments in terms of the type of switching observed and changes in the rate of switching with respect to contrast. In this way, the modelling study sheds light on the underlying mechanisms that drive perceptual switching in different contrast regimes. The general approach presented is applicable to a broad range of perceptual competition problems in which spatial interactions play a role. |
| publisher |
Springer US |
| publishDate |
2013 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3950608/ |
| _version_ |
1612066664040366080 |