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Titolo:
Motor learning and Parkinson's disease: refinement of within-limb and between-limb coordination as a result of practice
Autore:
Swinnen, SP; Steyvers, M; Van den Bergh, L; Stelmach, GE;
Indirizzi:
Katholieke Univ Leuven, Lab Motor Control, Dept Kinesiol, FLOK Grp Biomed Sci, B-3001 Heverlee, Belgium Katholieke Univ Leuven Heverlee Belgium B-3001 B-3001 Heverlee, Belgium Univ Arizona, Motor Control Lab, Tempe, AZ USA Univ Arizona Tempe AZ USAUniv Arizona, Motor Control Lab, Tempe, AZ USA
Titolo Testata:
BEHAVIOURAL BRAIN RESEARCH
fascicolo: 1-2, volume: 111, anno: 2000,
pagine: 45 - 59
SICI:
0166-4328(20000615)111:1-2<45:MLAPDR>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
NIGROSTRIATAL DOPAMINE SYSTEM; INTERLIMB COORDINATION; BASAL GANGLIA; PROPRIOCEPTIVE CONTROL; BIMANUAL COORDINATION; MULTIJOINT MOVEMENT; PERFORMANCE; DEFICITS; FEEDBACK; MEMORY;
Keywords:
Parkinson's disease; motor learning; bimanual coordination; parametrizatoin; kinesthesis; drawing movements;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
58
Recensione:
Indirizzi per estratti:
Indirizzo: Swinnen, SP Katholieke Univ Leuven, Lab Motor Control, Dept Kinesiol, FLOKGrp Biomed Sci, Tervuuse Vest 101, B-3001 Heverlee, Belgium Katholieke Univ Leuven Tervuuse Vest 101 Heverlee Belgium B-3001
Citazione:
S.P. Swinnen et al., "Motor learning and Parkinson's disease: refinement of within-limb and between-limb coordination as a result of practice", BEH BRA RES, 111(1-2), 2000, pp. 45-59

Abstract

Even though the basal ganglia have been assigned a role in motor learning,few studies have addressed motor learning capabilities in Parkinson patients. In the present experiment, improvement of bimanual figure drawing across practice was compared between Parkinson patients and normal age-matched controls. At regular intervals during acquisition, performance was assessed under normal vision and blindfolded conditions. At initiation of practice, the typical signs associated with Parkinson's disease became evident, such as bradykinesia and hypometria. Moreover, reduced synchronization between the force-time specifications of both limbs was observed. When vision was withdrawn, Parkinson patients showed a larger drift of drawing performance across the workspace, indicative of a decline in proprioception. In spite of the aforementioned deficits, Parkinson patients made marked improvements inthe speed of execution, the consistency of the spatial trajectories, and the synchronization between the limbs across practice, even though they never reached the performance levels obtained in elderly controls. The findingsdemonstrate that Parkinson patients do benefit from practice to refine their upper limb control and to alleviate their most basic motor deficits. (C)2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 14/07/20 alle ore 23:07:27