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Cognitive Neurodynamics

, Volume 10, Issue 1, pp 49–72 | Cite as

Neural network modelling of the influence of channelopathies on reflex visual attention

  • Alexandre Gravier
  • Chai Quek
  • Włodzisław Duch
  • Abdul Wahab
  • Joanna Gravier-Rymaszewska
Research Article

Abstract

This paper introduces a model of Emergent Visual Attention in presence of calcium channelopathy (EVAC). By modelling channelopathy, EVAC constitutes an effort towards identifying the possible causes of autism. The network structure embodies the dual pathways model of cortical processing of visual input, with reflex attention as an emergent property of neural interactions. EVAC extends existing work by introducing attention shift in a larger-scale network and applying a phenomenological model of channelopathy. In presence of a distractor, the channelopathic network’s rate of failure to shift attention is lower than the control network’s, but overall, the control network exhibits a lower classification error rate. The simulation results also show differences in task-relative reaction times between control and channelopathic networks. The attention shift timings inferred from the model are consistent with studies of attention shift in autistic children.

Keywords

Calcium channelopathy Visual attention Autism  Neural network Task learning 

Notes

Acknowledgments

We thank the reviewers for their comments made on an earlier version of the manuscript. This paper is based on the doctoral dissertation work of Alexandre Gravier, which was funded by Nanyang Technological University.

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Alexandre Gravier
    • 1
  • Chai Quek
    • 2
  • Włodzisław Duch
    • 3
  • Abdul Wahab
    • 4
  • Joanna Gravier-Rymaszewska
    • 5
  1. 1.Centre for Computational Intelligence (C2i)Nanyang Technological UniversitySingaporeSingapore
  2. 2.School of Computer EngineeringNanyang Technological UniversitySingaporeSingapore
  3. 3.Department of Informatics, School of Physics, Astronomy and InformaticsNicolaus Copernicus UniversityTorunPoland
  4. 4.School of Information and Communication TechnologyInternational Islamic University of MalaysiaKuala LumpurMalaysia
  5. 5.School of Humanities and Social SciencesNanyang Technological UniversitySingaporeSingapore

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