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Mediation Analysis of the Effect of Visuospatial Memory on Motor Skill Learning in Older Adults

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journal contribution
posted on 29.07.2022, 01:00 authored by Andrew Hooyman, Jennapher Lingo VanGilder, Sydney Y. Schaefer

There is high inter-individual variability in motor skill learning among older adults. Identifying the nature of these individual differences remains challenging due to interactions between participant characteristics (e.g., age, cognition) and task-related factors (e.g., nature of task, level of skill pre-training), making it difficult to determine plausibly causal relationships. This study addresses these competing explanations by using mediation analysis to examine plausible causal inference between visuospatial memory and one-month retention of both gross and fine motor components of a functional upper-extremity task following training. Results suggest that better visuospatial memory results in more retention of fine but not gross motor skill, expanding on previous correlational studies in older adults and informing future interventions for maximizing motor learning in geriatric populations.

Funding

This work was supported in part by the National Institute on Aging at the National Institutes of Health (K01AG047926 to SYS, and F31AG062057 to JLV). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

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