Predicting motor skill learning in older adults using visuospatial performance.

Area of Science:

• Neuroscience
• Gerontology
• Motor Control

Background:

• Aging is associated with declines in motor learning, often attributed to age-related changes.
• However, cognitive function also declines with age, potentially confounding direct age comparisons of motor learning.
• Visuospatial function has been previously linked to motor learning in older adults.

Purpose of the Study:

• To investigate the relationship between cognitive function and motor learning across a wider age range.
• To determine if visuospatial function, assessed by the Montreal Cognitive Assessment (MoCA), predicts motor learning retention.
• To explore whether cognitive deficits, specifically visuospatial, explain age-related motor learning impairments.

Main Methods:

• Thirty-three adults (aged 39-89) completed the MoCA, a brief cognitive screening tool.
• Participants practiced a functional upper extremity motor task.
• Motor learning was quantified by assessing performance 24 hours after practice.

Main Results:

• The Visuospatial/Executive subtest score of the MoCA was the only significant predictor of motor learning retention.
• This relationship held true even after controlling for participants' chronological age.
• Participant age itself was not a significant predictor when visuospatial function was considered.

Conclusions:

• Age-related declines in motor learning may be partially explained by deficits in visuospatial function.
• The MoCA provides a feasible method to assess cognitive factors influencing motor learning in aging adults.
• Targeting visuospatial function could be a potential strategy to mitigate motor learning impairments in older populations.