Abstract
The effects of advanced age and cognitive resources on the course of skill acquisition are unclear, and discrepancies among studies may reflect limitations of data analytic approaches. We applied a multilevel negative exponential model to skill acquisition data from 80 trials (four 20-trial blocks) of a pursuit rotor task administered to healthy adults (19-80 years old). The analyses conducted at the single-trial level indicated that the negative exponential function described performance well. Learning parameters correlated with measures of task-relevant cognitive resources on all blocks except the last and with age on all blocks after the second. Thus, age differences in motor skill acquisition may evolve in 2 phases: In the first, age differences are collinear with individual differences in task-relevant cognitive resources; in the second, age differences orthogonal to these resources emerge.
| Original language | English |
|---|---|
| Pages (from-to) | 163-173 |
| Number of pages | 11 |
| Journal | Journals of Gerontology - Series B Psychological Sciences and Social Sciences |
| Volume | 65 B |
| Issue number | 2 |
| DOIs | |
| State | Published - Mar 2010 |
Keywords
- Aging
- Motor performance
- Multilevel model
- Negative exponential learning function
- Pursuit rotor
- Skill acquisition
- Working memory
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