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. 2023 May;26(3):e13339.
doi: 10.1111/desc.13339. Epub 2022 Nov 20.

Action experience in infancy predicts visual-motor functional connectivity during action anticipation

Marc Colomer  1 , Haerin Chung  1 , Marlene Meyer  1   2 , Ranjan Debnath  3   4 , Santiago Morales  3   5 , Nathan A Fox  3 , Amanda Woodward  1
Affiliations

Action experience in infancy predicts visual-motor functional connectivity during action anticipation

Marc Colomer et al. Dev Sci. 2023 May.

Abstract

Despite substantial evidence indicating a close link between action production and perception in early child development, less is known about how action experience shapes the processes of perceiving and anticipating others' actions. Here, we developed a novel approach to capture functional connectivity specific to certain brain areas to investigate how action experience changes the networks involved in action perception and anticipation. Nine- and-12-month-old infants observed familiar (grasping) and novel (tool-use) actions while their brain activity was measured using EEG. Infants' motor competence of both actions was assessed. A link between action experience and connectivity patterns was found, particularly during the anticipation period. During action anticipation, greater motor competence in grasping predicted greater functional connectivity between visual (occipital alpha) and motor (central alpha) regions relative to global levels of whole-brain EEG connectivity. Furthermore, visual and motor regions tended to be more coordinated in response to familiar versus novel actions and for older than younger participants. Critically, these effects were not found in the control networks (frontal-central; frontal-occipital; parietal-central; parietal-occipital), suggesting a unique role of visual-motor networks on the link between motor skills and action encoding. HIGHLIGHTS: Infants' motor development predicted functional connectivity patterns during action anticipation. Faster graspers, and older infants, showed a stronger ratio of visual-motor neural coherence. Overall whole-brain connectivity was modulated by age and familiarity with the actions. Measuring inter-site relative to whole-brain connectivity can capture specific brain-behavior links. Measures of phase-based connectivity over time are sensitive to anticipatory action.

Keywords: alpha EEG oscillations; functional connectivity; mirroring; motor development; visuomotor connectivity; whole-brain connectivity.

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References

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