Association between finger tapping, attention, memory, and cognitive diagnosis in elderly patients
Israel Rabinowitz1, Yizhar Lavner
11 Clalit Health Services, Geriatric Assessment Unit Haifa and Western Galilee District, Haifa, Israel.
Perceptual and Motor Skills
|August 26, 2014
Summary
Spontaneous finger tapping, particularly the finger-touch phase, shows increased length and variability in individuals with cognitive impairment. This simple test may help identify attention and memory issues in the elderly.
Area of Science:
- Neuroscience
- Gerontology
- Cognitive Psychology
Background:
- Cognitive impairment, including mild cognitive impairment (MCI) and dementia, significantly impacts the elderly population.
- Early detection of cognitive decline is crucial for timely intervention and management.
- Finger tapping, a simple motor task, has potential as a non-invasive biomarker for cognitive status.
Purpose of the Study:
- To investigate the association between spontaneous finger tapping characteristics and cognitive function in elderly individuals.
- To analyze the distinct phases of finger tapping (touch-phase and off-phase) for their relationship with cognitive status.
- To evaluate the diagnostic potential of finger tapping parameters for identifying cognitive impairment.
Main Methods:
- 170 elderly participants (mean age 82.1 years) underwent cognitive assessments, including the Mini-Mental State Examination and forward digit span test.
- 15-second spontaneous finger tapping tasks were recorded and analyzed, focusing on the touch-phase and off-phase.
- Pattern classification analyses were employed to determine the sensitivity and specificity of finger tapping parameters in distinguishing cognitive impairment.
Main Results:
- A significant increase in the length and variability of the finger-touch phase was observed in participants with mild cognitive impairment or dementia compared to cognitively unimpaired individuals.
- These findings suggest a correlation between finger tapping parameters and cognitive domains such as attention and short-term memory.
- Pattern classification yielded a specificity of 0.91 and a sensitivity of 0.52 for ruling out cognitive impairment based on finger tapping metrics.
Conclusions:
- Spontaneous finger tapping, specifically the touch-phase, serves as a potential indicator of cognitive function in the elderly.
- The observed alterations in finger tapping may reflect underlying deficits in attention and short-term memory associated with cognitive impairment.
- Finger tapping presents a promising, albeit not fully definitive, tool for the preliminary screening of cognitive decline in older adults.
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