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. 2016 Nov 19;371(1708):20160004. doi: 10.1098/rstb.2016.0004

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© 2016 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 3. — The trial-by-trial amplitude of HERs in the vmPFC correlates with the involvement of the ‘Me’ in spontaneous thoughts (patient 1). (a) Time course of the Pearson correlation coefficient r between the trial-by-trial HER amplitude and the ratings on the ‘Me’ scale (black), and HERs (±s.e.m.) for ‘high’ (dark red) and ‘low’ (light pink) ratings on the ‘Me’ scale (median split of ratings), for recording site 2 (circled dot in (d)). The signal that might be residually contaminated by the cardiac-field artefact appears in lighter colour (not included in the analysis). The grey area highlights the time window in which a significant trial-by-trial correlation between HER amplitude and ‘Me’ ratings was observed. (b) HER amplitude in the significant time window plotted against ‘Me’ ratings. Each point represents one trial. (c) Mean Pearson correlation coefficient in the 304–354 ms time window, along the different recording sites of the electrode shaft of patient 1. The black bar corresponds to the recording site for which a significant correlation was found. (d) Differential HERs, sympathetic regulation and vmPFC. Recording site 2 (circled dot) showed the significant correlation, while recording site 1 and the triangle (patient 2) showed no effect. Regions in red showed differential responses to heartbeats along the ‘Me’ scale, in a previous MEG study [25]. Regions in green are involved in sympathetic regulation [34]. Yellow corresponds to the overlap between MEG results and sympathetic regulation regions.