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@ARTICLE{Mochalski:1026618,
      author       = {Mochalski, Lisa N. and Friedrich, Patrick and Li, Xuan and
                      Kröll, Jean-Philippe and Eickhoff, Simon B. and Weis,
                      Susanne},
      title        = {{I}nter- and intra-subject similarity in network functional
                      connectivity across a full narrative movie},
      reportid     = {FZJ-2024-03472},
      year         = {2024},
      abstract     = {Naturalistic paradigms, such as watching movies during
                      functional magnetic resonance imaging (fMRI), are thought to
                      prompt the emotional and cognitive processes typically
                      elicited in real life situations. Therefore, naturalistic
                      viewing (NV) holds great potential for studying individual
                      differences. However, in how far NV elicits similarity
                      within and between subjects on a network level, particularly
                      depending on emotions portrayed in movies, is currently
                      unknown. We used the studyforrest dataset to investigate the
                      inter- and intra-subject similarity in network functional
                      connectivity (NFC) of 14 meta-analytically defined networks
                      across a full narrative, audio-visual movie split into 8
                      consecutive movie segments. We characterized the movie
                      segments by valence and arousal portrayed within the
                      sequences, before utilizing a linear mixed model to analyze
                      which factors explain inter- and intra-subject similarity.
                      Our results showed that the model best explaining
                      inter-subject similarity comprised network, movie segment,
                      valence and a movie segment by valence interaction.
                      Intra-subject similarity was influenced significantly by the
                      same factors and an additional three-way interaction between
                      movie segment, valence and arousal. Overall, inter- and
                      intra-subject similarity in NFC were sensitive to the
                      ongoing narrative and emotions in the movie. Lowest
                      similarity both within and between subjects was seen in the
                      emotional regulation network and networks associated with
                      long-term memory processing, which might be explained by
                      specific features and content of the movie. We conclude that
                      detailed characterization of movie features is crucial for
                      NV research.},
      cin          = {INM-7},
      cid          = {I:(DE-Juel1)INM-7-20090406},
      pnm          = {5251 - Multilevel Brain Organization and Variability
                      (POF4-525)},
      pid          = {G:(DE-HGF)POF4-5251},
      typ          = {PUB:(DE-HGF)25},
      doi          = {10.1101/2024.05.14.594107},
      url          = {https://juser.fz-juelich.de/record/1026618},
}