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The Learning Effects of Attentional Strategy on Dual-task Walking in Patients With Parkinson's Disease: Behavioral Performance and Neural Plasticity

2019-04-03 09:44:28 | BioPortfolio

Summary

[year1]

1. To compare the effects of dual-task training with two different task priority instruction in people with Parkinson's disease and healthy controls on dual-task weight shifting performances.

2. Investigate the changes of brain activities and functional connectivity after dual-task training with different task priority instructions.

[year 2-3]

To investigate the learning effects of walking with internal/external focus on walking automaticity and brain plasticity in dual-task walking training for PD patients with/without freezing of gait.

Description

Postural-suprapostural task is defined as postural control takes place while another concurrent task is being performed, belonging to dual-task paradigms. Effective dual-task training is important to patients with Parkinson disease (PD), because they often lose balance and fall in dual-task conditions. Attentional strategy includes 1) task-priority between postural and suprapostural tasks and 2) internal and external focus for the postural task, which is the critical factor for both dual-task control and motor learning. However, the appropriateness of attentional strategy has not been investigated in dual-task training in patients with PD. Besides, there is lack of neural evidence of brain plasticity for previous studies about dual-task training in patients with PD. With the uses of EEG, EMG and behavioral measures, the purpose of this 3-year research project is to investigate the differences in performance quality and intrinsic neural mechanisms of dual-task training in PD, by adopting task-priority strategy and internal/external strategy during weight-shifting and walking. In the first year, the investigators will characterize task-priority effect (posture-priority vs. supraposture-priority) on dual-task training, with a special focus on modulation of brain plasticity and muscle activity patterns in weight-shifting posture for patients with PD. In the second and third years, the learning effects of walking internal/external focus on walking automaticity and brain plasticity will be investigated in dual-task walking training for PD patients with/without freezing of gait. Besides, the transfer effects of dual-task learning will be also investigated on medication "off" state. The present project is expected to have significant contributions not only to gain a better insight to neural correlates of dual-task training with different attentional strategies under weight-shifting and walking, but to optimize treatment strategy for PD patients with balance or dual-tasking disturbances.

Study Design

Conditions

Parkinson Disease

Intervention

[year1] dual-task training with task priority strategy, [year2-3] dual-task training with internal and external focus

Location

National Taiwan University Hospital
Taipei
Taiwan
10048

Status

Recruiting

Source

National Taiwan University Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-04-03T09:44:28-0400

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Medical and Biotech [MESH] Definitions

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A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.

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