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Friedman, J.; Korman, M. |
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Title |
Kinematic Strategies Underlying Improvement in the Acquisition of a Sequential Finger Task with Self-Generated vs. Cued Repetition Training |
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2012 |
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PLoS one |
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PLoS One |
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7 |
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12 |
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e52063 |
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Abstract |
Many motor skills, such as typing, consist of articulating simple movements into novel sequences that are executed faster and smoother with practice. Dynamics of re-organization of these movement sequences with multi-session training and its dependence on the amount of self-regulation of pace during training is not yet fully understood. In this study, participants practiced a sequence of key presses. Training sessions consisted of either externally (Cued) or self-initiated (Uncued) training. Long-term improvements in performance speed were mainly due to reducing gaps between finger movements in both groups, but Uncued training induced higher gains. The underlying kinematic strategies producing these changes and the representation of the trained sequence differed significantly across subjects, although net gains in speed were similar. The differences in long-term memory due to the type of training and the variation in strategies between subjects, suggest that the different neural mechanisms may subserve the improvements observed in overall performance. |
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Department of Cognitive Science, Macquarie University, Sydney, Australia ; ARC Centre of Excellence in Cognition and its Disorders, Macquarie University, Sydney, Australia |
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1932-6203 |
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PMID:23272210 |
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41 |
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Mindy F. Levin; Osnat Snir; Dario G. Liebermann; Harold Weingarden; Patrice L. Weiss |
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Title |
Virtual Reality Versus Conventional Treatment of Reaching Ability in Chronic Stroke: Clinical Feasibility Study |
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Journal Article |
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Year |
2012 |
Publication |
Neurology and Therapy |
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1 |
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3 |
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1-15 |
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Introduction
The objective of this study was to evaluate the potential of exercises performed in a 2D video-capture virtual reality (VR) training environment to improve upper limb motor ability in stroke patients compared to those performed in conventional therapy.
Methods
A small sample randomized control trial, in an outpatient rehabilitation center with 12 patients with chronic stroke, aged 33–80 years, who were randomly allocated to video-capture VR therapy and conventional therapy groups. All patients participated in four clinical evaluation sessions (pre-test 1, pre-test 2, post-test, follow-up) and nine 45-minute intervention sessions over a 3-week period. Main outcomes assessed were Body Structure and Function (impairment: Fugl–Meyer Assessment [FMA]; Composite Spasticity Index [CSI]; Reaching Performance Scale for Stroke), Activity (Box and Blocks; Wolf Motor Function Test [WMFT]), and Participation (Motor Activity Log) levels of the International Classification of Functioning.
Results
Improvements occurred in both groups, but more patients in the VR group improved upper limb clinical impairment (FMA, CSI) and activity scores (WMFT) and improvements occurred earlier. Patients in the VR group also reported satisfaction with the novel treatment.
Conclusions
The modest advantage of VR over conventional training supports further investigation of the effect of video-capture VR or VR combined with conventional therapy in larger-scale randomized, more intense controlled studies. |
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42 |
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Goodman, D.; Liebermann, D.G. |
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Title |
Time-to-contact as a determiner of action: vision and motor control |
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1992 |
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Vision and Motor Control |
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335-349 |
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Elsevier Pub. Co |
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Amsterdam, Holland |
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D. Elliott; J. Proteau |
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43 |
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Flash, T.; Richardson, M. E.; Handzel, A. A.; Liebermann, D. G. |
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Computational Models and Geometric Approaches in Arm Trajectory Control Studies |
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2003 |
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Progress in Motor Control III: From Basic Science to Applications |
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Human Kinetics |
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Champaign, Il |
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M. L. Latash; M. F. Levin |
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44 |
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Liebermann, D.G.; Franks, I. M. |
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The use of feedback-based technologies in skill acquisition |
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2004 |
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Notational analysis of Sport and Coaching Science |
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E & FN Spon Pub |
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M. Hughes; I.M. Franks |
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