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@ARTICLE{Grazia:163410,
      author       = {Grazia, Alice and Wimmer, Michael and Müller-Putz, Gernot
                      R and Wriessnegger, Selina C},
      title        = {{N}eural {S}uppression {E}licited {D}uring {M}otor
                      {I}magery {F}ollowing the {O}bservation of {B}iological
                      {M}otion {F}rom {P}oint-{L}ight {W}alker {S}timuli.},
      journal      = {Frontiers in human neuroscience},
      volume       = {15},
      issn         = {1662-5161},
      address      = {Lausanne},
      publisher    = {Frontiers Research Foundation},
      reportid     = {DZNE-2022-00172},
      pages        = {788036},
      year         = {2022},
      abstract     = {Introduction: Advantageous effects of biological motion
                      (BM) detection, a low-perceptual mechanism that allows the
                      rapid recognition and understanding of spatiotemporal
                      characteristics of movement via salient kinematics
                      information, can be amplified when combined with motor
                      imagery (MI), i.e., the mental simulation of motor acts.
                      According to Jeannerod's neurostimulation theory,
                      asynchronous firing and reduction of mu and beta rhythm
                      oscillations, referred to as suppression over the
                      sensorimotor area, are sensitive to both MI and action
                      observation (AO) of BM. Yet, not many studies investigated
                      the use of BM stimuli using combined AO-MI tasks. In this
                      study, we assessed the neural response in the form of
                      event-related synchronization and desynchronization (ERD/S)
                      patterns following the observation of point-light-walkers
                      and concordant MI, as compared to MI alone. Methods: Twenty
                      right-handed healthy participants accomplished the
                      experimental task by observing BM stimuli and subsequently
                      performing the same movement using kinesthetic MI (walking,
                      cycling, and jumping conditions). We recorded an
                      electroencephalogram (EEG) with 32 channels and performed
                      time-frequency analysis on alpha (8-13 Hz) and beta (18-24
                      Hz) frequency bands during the MI task. A two-way
                      repeated-measures ANOVA was performed to test statistical
                      significance among conditions and electrodes of interest.
                      Results: The results revealed significant ERD/S patterns in
                      the alpha frequency band between conditions and electrode
                      positions. Post hoc comparisons showed significant
                      differences between condition 1 (walking) and condition 3
                      (jumping) over the left primary motor cortex. For the beta
                      band, a significantly less difference in ERD patterns (p <
                      0.01) was detected only between condition 3 (jumping) and
                      condition 4 (reference). Discussion: Our results confirmed
                      that the observation of BM combined with MI elicits a neural
                      suppression, although just in the case of jumping. This is
                      in line with previous findings of AO and MI (AOMI) eliciting
                      a neural suppression for simulated whole-body movements. In
                      the last years, increasing evidence started to support the
                      integration of AOMI training as an adjuvant
                      neurorehabilitation tool in Parkinson's disease (PD).
                      Conclusion: We concluded that using BM stimuli in AOMI
                      training could be promising, as it promotes attention to
                      kinematic features and imitative motor learning.},
      keywords     = {EEG (Other) / ERD/ERS (Other) / action observation (AO)
                      (Other) / biological motion (Other) / motor imagery (MI)
                      (Other)},
      cin          = {AG Boccardi},
      ddc          = {610},
      cid          = {I:(DE-2719)5000062},
      pnm          = {353 - Clinical and Health Care Research (POF4-353)},
      pid          = {G:(DE-HGF)POF4-353},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:35069155},
      pmc          = {pmc:PMC8779203},
      doi          = {10.3389/fnhum.2021.788036},
      url          = {https://pub.dzne.de/record/163410},
}