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. 2018 Sep 5;8:13259. doi: 10.1038/s41598-018-31525-z

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Brain-wide inter-subject correlation of neural activity during the audio story. (A) The audio story elicited significant (p < 0.05; FWE cor) inter-subject correlation across the brain, including frontal and parietal cortex, thought to support executive function. (B) The baseline elicited significant (p < 0.05; FWE cor) inter-subject correlation within primary and association auditory cortex. A small cluster was also observed in right inferior prefrontal cortex. None was observed in dorsal prefrontal and parietal cortex. (C) The audio story elicited significantly (p < 0.05; FWE cor) more inter-subject correlation than the auditory baseline derived from the same stimulus, in parietal, temporal, motor, and dorsal/ventral frontal/prefrontal cortex. A, B, C, adapted with permission from Naci et al.³⁰. (D) The audio story elicited significant (p < 0.05; FWE cor) inter-subject correlation across the brain, including frontal and parietal cortex, in the wakeful state of the anesthesia study. (E) In the deep anesthesia state, significant (p < 0.05; FWE cor) inter-subject correlation was limited to the auditory cortex with the exception of two small clusters, one in left prefrontal and the other in right parietal cortex. (F) The audio story elicited significantly (p < 0.05; FWE cor) more cross-subject correlation in the awake than deeply sedated condition bilaterally in temporal, ventral prefrontal and frontal cortex, and further in parietal, motor, and dorsal frontal and prefrontal cortex in the right hemisphere. Warmer colors depict higher t-values of cross-subject correlation. Warmer colors depict higher t-values of inter-subject correlation.