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Cognitive Neurodynamics

, Volume 7, Issue 6, pp 465–475 | Cite as

Perception of successive brief objects as a function of stimulus onset asynchrony: model experiments based on two-stage synchronization of neuronal oscillators

  • Talis BachmannEmail author
  • Toomas Kirt
Research Article
  • 163 Downloads

Abstract

Recently we introduced a new version of the perceptual retouch model incorporating two interactive binding operations—binding features for objects and binding the bound feature-objects with a large scale oscillatory system that acts as a mediary for the perceptual information to reach consciousness-level representation. The relative level of synchronized firing of the neurons representing the features of an object obtained after the second-stage synchronizing modulation is used as the equivalent of conscious perception of the corresponding object. Here, this model is used for simulating interaction of two successive featured objects as a function of stimulus onset asynchrony (SOA). Model output reproduces typical results of mutual masking—with shortest and longest SOAs first and second object correct perception rate is comparable while with intermediate SOAs second object dominates over the first one. Additionally, with shortest SOAs misbinding of features to form illusory objects is simulated by the model.

Keywords

Visual masking Neuronal oscillation Synchronization Feature binding Consciousness 

Notes

Acknowledgments

This study was supported by the ESF grant #8401 to Talis Bachmann and by the European Social Fund Grant No. MJD22 to Toomas Kirt and Talis Bachmann. We are grateful to Carolina Murd for her help in carrying out this research.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Laboratory of Cognitive Neuroscience, Institute of Public LawUniversity of Tartu (Tallinn Branch)TallinnEstonia

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