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  Parallel perception of multiple visually bistable patterns

Maier, A., Wilke, M., Leopold, D., Treue, S., & Logothetis, N. (2001). Parallel perception of multiple visually bistable patterns. Poster presented at 31st Annual Meeting of the Society for Neuroscience (Neuroscience 2001), San Diego, CA, USA.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E1D3-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-AA4F-4
Genre: Poster

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 Creators:
Maier, A1, 2, Author              
Wilke, M1, 2, Author              
Leopold, DA1, 2, Author              
Treue, S, Author
Logothetis, NK1, 2, Author              
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: The visual instability that results from viewing ambiguous or conflicting patterns is thought to reflect dynamic processes that are critical for perceptual organization during normal vision. We have recently discovered a method to prolong states of perceptual dominance up to two orders of magnitude by periodically switching off and on the inducing bistable pattern. In the current study we used this paradigm to temporally interleave the presentation of pairs of ambiguous stimuli at the same location in visual space. Bistable patterns including rotating three-dimensional objects, depth reversals, and binocular rivalry, were shown alternately with appropriate blanking periods to prolong phases of perceptual dominance. We were interested under what conditions the time courses of two parallel bistable visual processes would be independent. We found that for certain pairs of ambiguous stimuli, such as 3-D balls rotating around orthogonal axes, the time course of perceptual alternation was largely parallel and independent. However, for other patterns, e.g. those differing only in color, speed, size, or position, the two stimuli were synchronized in their reversals. These results suggest that for a given visual location, perceptual organization can be biased for multiple different stimuli simultaneously, but that the independence between pairs of stimuli depends upon their similarity. We will discuss the results with respect to the critical stimulus dimensions that determine whether or not interference occurs.

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 Dates: 2001-11
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: 1054
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Title: 31st Annual Meeting of the Society for Neuroscience (Neuroscience 2001)
Place of Event: San Diego, CA, USA
Start-/End Date: 2001-11-10 - 2001-11-15

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Title: 31st Annual Meeting of the Society for Neuroscience (Neuroscience 2001)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 165.15 Start / End Page: - Identifier: -