Gaebler Michael, Biessmann Felix, Lamke Jan-Peter, Müller Klaus-Robert, Walter Henrik, Hetzer Stefan
Charité - Universitätsmedizin Berlin, Germany; Max Planck Institute for Human Cognitive & Brain Sciences, Leipzig, Germany; Universität Leipzig, Germany.
Korea University, Seoul, Republic of Korea; Technische Universität Berlin, Germany.
Neuroimage. 2014 Oct 15;100:427-34. doi: 10.1016/j.neuroimage.2014.06.008. Epub 2014 Jun 17.
Three-dimensional movies 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.
近年来，通过立体显示呈现的三维电影越来越受欢迎，旨在提供更具沉浸感的观看体验。然而，与复杂动态视觉刺激中立体深度感知相关的神经认知过程仍未得到充分研究。在此，我们研究立体深度对神经生理学和主观体验的影响。使用多元统计学习方法，我们比较了受试者在自由观看二维和三维同一部电影时的大脑活动。主观报告表明，三维电影比二维电影的体验更强烈。在神经层面，我们观察到，与观看二维同一部电影相比，受试者观看三维电影时皮质网络的受试者间相关性显著更高。我们证明，大脑网络受试者间相关性的增加可作为立体深度和观看体验强度的神经生理学指标。
