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  Biological motion presented with upright and inverted display orientation: Human ultra high field 9.4 T fMRI

Pavlova, M., Erb, M., Hagberg, G., Sokolov, A., & Scheffler, K. (2016). Biological motion presented with upright and inverted display orientation: Human ultra high field 9.4 T fMRI. Poster presented at 39th European Conference on Visual Perception (ECVP 2016), Barcelona, Spain.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-7B0E-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-07BE-C
Genre: Poster

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Pavlova, MA, Author              
Erb, M1, 2, Author              
Hagberg, G1, 2, Author              
Sokolov, A, Author              
Scheffler, K1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: Body motion (BM) is a rich source of information for social cognition and interaction. Yet display inversion severely impedes BM processing. It is still unclear how brain networks underpinning BM processing are affected by display inversion. To address this issue, we used ultra-high field functional magnetic resonance imaging (fMRI) at 9.4T. Participants performed a two-alternativeforced-choice task, indicating whether an upright point-light walker or control displays (the same movie inverted 180 deg) were presented. An upright walker elicits most pronounced clusters of fMRI activity in the bilateral superior occipital cortices and the right middle temporal cortex, whereas the inverted display results in bilateral activity of lower occipital cortices, primarily, the lingual cortices. The BOLD response in these areas exhibited specific temporal dynamics during stimulus duration: a decrease in activation in the second 5 s of stimulus duration, with a recurrent increase afterwards. Perceivers who did not recognize upside-down display as a walker exhibit activity in the distributed network with hubs in the right hemisphere including the lingual and postcentral cortices, and the pars operculum. The outcome provides novel insights on the brain networks underlying body motion processing and its functional neuroanatomy.

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 Dates: 2016-12
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1177/0301006616671273
BibTex Citekey: PavlovaEHSS2016
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Title: 39th European Conference on Visual Perception (ECVP 2016)
Place of Event: Barcelona, Spain
Start-/End Date: 2016-08-29 - 2016-09-01

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 45 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 294 - 295 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369