期刊
PARKINSONISM & RELATED DISORDERS
卷 13, 期 3, 页码 146-151出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.parkreldis.2006.08.006
关键词
attention; learning; cognition; L-dopa infusion; Parkinson's disease
资金
- NCCIH NIH HHS [AT 000941] Funding Source: Medline
- NINDS NIH HHS [NS 02101, NS 35069, NS 01961] Funding Source: Medline
- NATIONAL CENTER FOR COMPLEMENTARY &ALTERNATIVE MEDICINE [R01AT000941] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS035069, K08NS001961] Funding Source: NIH RePORTER
We have recently introduced a set of sequence learning tasks that emphasize explicit learning and target anticipation and involve the activation of frontal lobes. This type of learning is impaired even in the early stages of Parkinson's disease (PD). Studies on the effects of L-Dopa on cognitive symptoms of PD have yielded controversial results. To verify whether L-Dopa acutely improves explicit sequence learning, we tested six normal subjects and seven PD) patients both off-drug and during L-Dopa infusion with two tasks: SEQ, a motor task with multiple demands, where a sequence had to be learned while reaching for a targets; VSEQ, a visual task where a sequence had to be learned by attending to a visual display without moving. Motor performance was assessed with simple motor tasks. L-Dopa improved motor scores and movement. speed, but had no beneficial effect on either type of sequence learning. (c) 2006 Published by Elsevier Ltd.
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