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Title of the article
Neuromagnetic activation and oscillatory dynamics of stimulus-locked processing during naturalistic viewing
List of authors
Nunes, Adonay S.; Kozhemiako, Nataliia; Moiseev, Alexander; Seymour, Robert A.; Cheung, Teresa P.L.; Ribary, Urs; Doesburg, Sam M.
Published in
Neuroimage
doi: 10.1016/j.neuroimage.2019.116414. Epub 2019 Nov 30.
PMID: 31794854
Brief summary of the paper
Instead of using a traditional paradigm where stimuli are presented repetitively to extract reliable brain activity, in this study we used a more ecologically valid approach. A 10 minute movie was shown during a Magnetoencephalography recording and we were able to extract rich temporal activation and brain connectivity dynamics. Visual (faces and hands) and auditory (words and non-words) stimuli were timelocked to their onset and used to map brain activation associated with the stimuli and synchronization over time. Our results demonstrated that during the movie, the three main face processing areas were synchronously activated. When participants observed hand manipulations, beta band desynchronization in motor-related areas was observed, supporting previous literature on mental projections and theory of mind. Overall, this study provides novel evidence of the rich spatial and spectral brain information that can be extracted during a naturalistic paradigm and opens the door to new studies and techniques that can exploit the benefits of this paradigm.
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