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Journal Article

Stereoscopic depth increases intersubject correlations of brain networks

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Gaebler,  Michael
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Charité, Universitätsmedizin Berlin, Germany;
Universität Leipzig, Germany;

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Gaebler_Stereoscopic.pdf
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Citation

Gaebler, M., Biessmann, F., Lamke, J.-P., Müller, K.-R., Walter, H., & Hetzer, S. (2014). Stereoscopic depth increases intersubject correlations of brain networks. NeuroImage, 100, 427-434. doi:10.1016/j.neuroimage.2014.06.008.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-4222-5
Abstract
Three-dimensionalmovies presented via stereoscopic displays have becomemore 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 neurophysiologicalmarker for stereoscopic depth and for the strength of the viewing experience.