June 2006
Volume 6, Issue 6
Vision Sciences Society Annual Meeting Abstract  |   June 2006
Stimulus flicker alters interocular grouping during binocular rivalry
Author Affiliations
  • Tomas Knapen
    Helmholtz institute, Utrecht University, the Netherlands
  • Chris Paffen
    Helmholtz institute, Utrecht University, the Netherlands
  • Ryota Kanai
    Division of Biology, California Institute of Technology
  • Raymond van Ee
    Helmholtz institute, Utrecht University, the Netherlands
Journal of Vision June 2006, Vol.6, 49. doi:https://doi.org/10.1167/6.6.49
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      Tomas Knapen, Chris Paffen, Ryota Kanai, Raymond van Ee; Stimulus flicker alters interocular grouping during binocular rivalry. Journal of Vision 2006;6(6):49. doi: https://doi.org/10.1167/6.6.49.

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      © ARVO (1962-2015); The Authors (2016-present)

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When the two eyes are presented with sufficiently different stimuli, the stimuli will engage in binocular rivalry. During binocular rivalry, a subject's perceptual state alternates between awareness of the stimulus presented to the right eye and that presented to the left eye.

There are instances in which competition is not eye-based, but instead takes place between stimulus features, as is the case in flicker & switch rivalry [1]. This has been taken as evidence that binocular rivalry can occur at multiple levels of the visual processing hierarchy, i.e. at lower, monocular levels, and higher, eye-independent levels. In this view [2], ∼20 Hz flicker decreases the relative weight of the lower, monocular levels, thereby increasing the relative importance of the eye-independent levels. Here we investigate interocular grouping using a Diaz-Caneja stimulus in conjunction with synchronous stimulus flicker.

Our results indicate that stimulus flicker increases the total duration of interocularly bound percepts, and that this effect occurs for a range of temporal flicker frequencies. Furthermore, the use of contrast-inversion flicker causes a decrease of total dominance duration of the interocularly bound percepts.

We conclude that different flickering regimes can be used to differentially stimulate lower and higher levels of visual processing involved in binocular rivalry.

1. N. K. Logothetis, D. A Leopold, and D. L. Sheinberg. (1996). What is rivalling during binocular rivalry? Nature. 380, 621-624.

2. H. R. Wilson. (2003). Computational evidence for a rivalry hierarchy in vision. Proc Natl Acad Sci U S A. 100, 14499-14503.

Knapen, T. Paffen, C. Kanai, R. van Ee, R. (2006). Stimulus flicker alters interocular grouping during binocular rivalry [Abstract]. Journal of Vision, 6(6):49, 49a, http://journalofvision.org/6/6/49/, doi:10.1167/6.6.49. [CrossRef]

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