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Synchronization of auditory-hand tapping coupling: the effect of aging
Benedetta Heimler1, Miriam Sofia2, Noam Galor2
1Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel. benedettaheimler@gmail.com.
Experimental Brain Research
|January 15, 2025
Summary
Older adults show declines in sensorimotor synchronization (SMS) abilities, particularly when alternating hands during tapping tasks. These findings highlight age-related changes in motor control and timing.
Area of Science:
- Neuroscience
- Human Motor Control
- Gerontology
Background:
- Sensorimotor synchronization (SMS) is crucial for motor control.
- Age-related changes in SMS are not well understood.
- Hand-tapping tasks are common for studying SMS.
Purpose of the Study:
- To investigate the impact of aging on sensorimotor synchronization (SMS) abilities.
- To compare SMS performance in young adults (YA) and older adults (OA) across different hand-tapping tasks.
Main Methods:
- 15 young adults and 15 older adults performed hand-tapping tasks.
- Tasks included dominant hand only, non-dominant hand only, simultaneous, and alternating hand tapping.
- A synchronization-continuation paradigm was used with auditory pacing.
Main Results:
- Older adults exhibited degraded tapping performance compared to young adults.
- The alternating (ALT) and non-dominant (ND) hand tasks showed the most significant decline in older adults.
- No differences were found between age groups for dominant hand only and simultaneous tapping tasks.
Conclusions:
- Aging impacts sensorimotor synchronization (SMS) abilities, particularly in tasks requiring complex hand coordination.
- Specific tasks like alternating hand tapping are more susceptible to age-related decline.
- Findings may inform diagnostic and rehabilitation strategies for motor control in older adults.
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