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. 2015 Sep 28;6:134. doi: 10.3389/fpsyt.2015.00134

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Copyright © 2015 Nardo, Högberg, Jonsson, Jacobsson, Hällström and Pagani.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Whole-brain results of the analysis on SPECT data: correlation between rCBF and sleep disturbances score (SDS; cf. Table 3). rCBF increase associated with higher sleep disturbances (SDS+) is displayed in red/yellow and rCBF decrease with higher sleep disturbances (SDS−) in light blue. (A) Whole group of subjects (i.e., irrespective of PTSD diagnosis; n = 37). Scatter plots display rCBF as a function of SDS in the whole group (cyan line; r = ±0.51; p = 0.001), and separately for PTSD (red line/diamonds; r = ±0.68; p = 0.001) and non-PTSD (green line/dots; r = ±0.17; p = 0.511), expressed as parameter estimates (p.e.; values extracted at peaks in the midbrain and anterior cingulate cortex). (B) PTSD group.