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  The Cortical Representation of Objects Rotating in Depth

Weigelt, S., Kourtzi, Z., Kohler, A., Singer, W., & Muckli, L. (2007). The Cortical Representation of Objects Rotating in Depth. The Journal of Neuroscience, 27(14), 3864-3874. doi:10.1523/JNEUROSCI.0340-07.2007.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-CC10-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-CC11-4
Genre: Journal Article

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 Creators:
Weigelt, S, Author              
Kourtzi, Z1, 2, Author              
Kohler, A, Author
Singer, W, Author
Muckli, L, 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, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: The perception of motion provides valuable interpolations of the visual scene. This fundamental capacity of the visual system is evident in apparent rotation: by presenting only two images of an object rotated in space, a vivid illusion of a smooth apparent motion in three dimensions can be induced. The unseen interpolated rotation views are filled in by the visual system. In the present study, we identified the cortical network responsible for this filling-in process. We argue that cross talk between areas of the ventral and dorsal visual pathways promote the illusion of smooth apparent rotation. Most interestingly, the network represents the unseen object views. Using functional magnetic resonance adaptation, we are able to show that the cortical network selectively adapts to the illusory object views. Our findings provide strong evidence for cortical representations of three-dimensional rotating objects that are view invariant with respect to the rotation path. Furthermore, our results confirm psychophysical investigations that unseen interpolated rotation views can be primed by apparent motion. By applying functional magnetic resonance adaptation, we show for the first time cortical adaptation to unseen objects. Together, our neuroimaging study advances the understanding of the cortical mechanisms mediating the influence of motion on object processing.

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 Dates: 2007-04
 Publication Status: Published in print
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 Identifiers: DOI: 10.1523/JNEUROSCI.0340-07.2007
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Title: The Journal of Neuroscience
  Other : J. Neurosci.
Source Genre: Journal
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Publ. Info: Baltimore, MD : The Society
Pages: - Volume / Issue: 27 (14) Sequence Number: - Start / End Page: 3864 - 3874 Identifier: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187