% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Li:862045,
      author       = {Li, Changhong and Fronczek‐Poncelet, Judith and Lange,
                      Denise and Hennecke, Eva and Kroll, Tina and Matusch,
                      Andreas and Aeschbach, Daniel and Bauer, Andreas and
                      Elmenhorst, Eva‐Maria and Elmenhorst, David},
      title        = {{I}mpact of acute sleep deprivation on dynamic functional
                      connectivity states},
      journal      = {Human brain mapping},
      volume       = {41},
      number       = {4},
      issn         = {1047-3211},
      address      = {New York, NY},
      publisher    = {Wiley-Liss},
      reportid     = {FZJ-2019-02411},
      pages        = {994-1005},
      year         = {2020},
      abstract     = {Sleep deprivation (SD) could amplify the temporal
                      fluctuation of spontaneous brain activities that reflect
                      different arousal levels using a dynamic functional
                      connectivity (dFC) approach. Therefore, we intended to
                      evaluate the test–retest reliability of dFC
                      characteristics during rested wakefulness (RW), and to
                      explore how the properties of these dynamic connectivity
                      states were affected by extended durations of acute sleep
                      loss (28/52 hr). We acquired resting‐state fMRI and
                      neuropsychological datasets in two independent studies: (a)
                      twice during RW and once after 28 hr of SD (n = 15) and (b)
                      after 52 hr of SD and after 14 hr of recovery sleep (RS; n =
                      14). Sliding‐window correlations approach was applied to
                      estimate their covariance matrices and corresponding three
                      connectivity states were generated. The test–retest
                      reliability of dFC properties demonstrated mean dwell time
                      and fraction of connectivity states were reliable. After SD,
                      the mean dwell time of a specific state, featured by strong
                      subcortical–cortical anticorrelations, was significantly
                      increased. Conversely, another globally hypoconnected state
                      was significantly decreased. Subjective sleepiness and
                      objective performances were separately positive and negative
                      correlated with the increased and decreased state. Two brain
                      connectivity states and their alterations might be
                      sufficiently sensitive to reflect changes in the dynamics of
                      brain mental activities after sleep loss.},
      cin          = {INM-2},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-2-20090406},
      pnm          = {573 - Neuroimaging (POF3-573) / 571 - Connectivity and
                      Activity (POF3-571) / 572 - (Dys-)function and Plasticity
                      (POF3-572)},
      pid          = {G:(DE-HGF)POF3-573 / G:(DE-HGF)POF3-571 /
                      G:(DE-HGF)POF3-572},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31680379},
      UT           = {WOS:000493799800001},
      doi          = {10.1002/hbm.24855},
      url          = {https://juser.fz-juelich.de/record/862045},
}