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Stereoscopic depth increases intersubject correlations of brain networks

Authors
Gaebler, MichaelBiessmann, FelixLamke, Jan-PeterMueller, Klaus-RobertWalter, HenrikHetzer, Stefan
Issue Date
15-10월-2014
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Keywords
Intersubject correlations; Canonical correlation analysis (CCA); Natural viewing; 3D movies; fMRI; Immersion
Citation
NEUROIMAGE, v.100, pp.427 - 434
Indexed
SCIE
SCOPUS
Journal Title
NEUROIMAGE
Volume
100
Start Page
427
End Page
434
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/97090
DOI
10.1016/j.neuroimage.2014.06.008
ISSN
1053-8119
Abstract
Three-dimensionalmovies presented via stereoscopic displays have become more popular in recent years aiming at a more engaging viewing experience. However, neurocognitive processes associated with the perception of stereoscopic depth in complex and dynamic visual stimuli remain understudied. Here, we investigate the influence of stereoscopic depth on both neurophysiology and subjective experience. Using multivariate statistical learning methods, we compare the brain activity of subjects when freely watching the same movies in 2D and in 3D. Subjective reports indicate that 3D movies are more strongly experienced than 2D movies. On the neural level, we observe significantly higher intersubject correlations of cortical networks when subjects are watching 3D movies relative to the same movies in 2D. We demonstrate that increases in intersubject correlations of brain networks can serve as neurophysiological marker for stereoscopic depth and for the strength of the viewing experience. (C) 2014 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license
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