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Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function
Published on: January 26, 2024
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On the Dynamics of Spatial Updating.
Jean Blouin1, Jean-Philippe Pialasse2, Laurence Mouchnino1,3
1Laboratoire de Neurosciences Cognitives, CNRS, Aix-Marseille Université, Marseille, France.
Frontiers in Neuroscience
|March 7, 2022
Summary
This study used electroencephalography (EEG) to track brain activity during real body motion, revealing key neural dynamics in spatial updating and working memory during passive rotation.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Human Motor Control
Background:
- Current understanding of spatial updating relies heavily on fMRI studies with virtual environments.
- Limited knowledge exists regarding neural dynamics during actual physical motion.
Purpose of the Study:
- Investigate the temporal dynamics of cortical activation during real body motion in a spatial updating task.
- Differentiate neural activity related to spatial updating from general sensory processing during passive rotation.
Main Methods:
- Utilized high-temporal-resolution electroencephalography (EEG) to record brain activity.
- Employed a passive whole-body rotation paradigm in darkness with a spatial updating task versus a control condition.
- Analyzed rotation-evoked potentials (RotEPs) and cortical current source localization.
Main Results:
- The P1N1 complex amplitude of RotEPs was significantly larger in the spatial updating task.
- Task-related cortical activity emerged between 136-303 ms post-rotation onset, localized in temporal, frontal (SMC, dlPFC, aPFC), and right superior posterior parietal cortex (PPC).
- Bilateral PPC activation and subsequent activity in the cuneus and precuneus were observed later (303-470 ms).
Conclusions:
- Early task-related activity (136-303 ms) is associated with encoding spatial goals and working memory storage.
- Later activity (303-470 ms) involves higher-order processes for updating body orientation based on egocentric and visual representations.
- Findings provide insights into the neural mechanisms of spatial updating during real body movement.
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