Application of Variability of Practice Hypothesis in Alzheimer Patients |
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Authors: | Ross Andel |
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Affiliation: | (1) Southern California College, Costa Mesa, California;(2) Present address: Andrus Gerontology Center, University of Southern California, 3715 McClintock Avenue, Los Angeles, CA, 90089-0191 |
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Abstract: | This study examined the effects of constant versus variable practice on learning a simple motor task in eight patients diagnosed with Alzheimer's Disease (AD). According to the variability of practice hypothesis, variations in practice of a motor skill result in superior learning as evidenced by better ability to transfer the skill. Eight AD patients were matched for Mini-Mental State Exam and baseline scores and then randomly assigned to a constant or variable practice group. Then, the participants were trained in hitting a tennis ball with a small racquet against a horizontal target (practice task) over 12 sessions. Finally, they were asked to aim at a vertical target (transfer task). All participants showed improvement on the practice task. On the transfer task, three of four participants in the variable practice group outperformed their matched counterparts, suggesting learning benefits of variable practice. |
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Keywords: | Alzheimer's Disease motor learning variability of practice hypothesis procedural learning |
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