Evaluation of the effects of adding vibrotactile feedback to myoelectric prosthesis users on performance and visual attention in a dual-task paradigm
Evaluation of the effects of adding vibrotactile feedback to myoelectric prosthesis users on performance and visual attention in a dual-task paradigm
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在双任务范例中评估向肌电假肢用户添加振动触觉反馈对性能和视觉注意力的影响
DOI：
10.1177/0269215518774104
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发表时间：
2018
影响因子：
3
通讯作者：
S. Portnoy
中科院分区：
文献类型：
--
作者：
Eitan Raveh;J. Friedman;S. Portnoy
目的：探讨在双任务模式下，肌电义肢使用者增加振动触觉反馈对动作时间和视觉注意的影响。设计：两种情况的平衡顺序的重复测量设计。设置：实验室设置。受试者：使用肌电义肢的经桡骨截肢者，视力正常或矫正（N = 12，中位年龄= 65±13岁）。排除标准为骨科或神经系统疾病。干预：受试者用他们的假肢执行抓取任务，同时用他们完整的手在路上控制一辆虚拟汽车。双重任务进行了两次：有和没有振动触觉反馈。主要测量：每个抓握任务的执行时间和凝视行为，通过被试将目光转向手的次数、他们将注意力集中在屏幕上的相对时间和次要任务的错误率来衡量。结果：使用振动触觉反馈时的平均表演时间（93.2±9.6秒）明显短于未使用振动触觉反馈时的平均表演时间（107.8±20.3秒），差异有统计学意义（P = 0.024）。在两种情况下，目光从屏幕转移到手上的次数、受试者将注意力集中在屏幕上的时间以及虚拟汽车在越野状态下的时间占总游戏时间的百分比（分别为51.4±15.7和50.2±19.5），没有发现显著差异。结论：在双任务模式下，增加触觉振动反馈可提高抓取动作时间。当多种认知需求存在时，假肢使用者可以使用振动触觉反馈在日常任务中表现得更好。
Objective: To evaluate the effects of adding vibrotactile feedback to myoelectric prosthesis users on the performance time and visual attention in a dual-task paradigm. Design: A repeated-measures design with a counterbalanced order of two conditions. Setting: Laboratory setting. Subjects: Transradial amputees using a myoelectric prosthesis with normal or corrected eyesight (N = 12, median age = 65 ± 13 years). Exclusion criteria were orthopedic or neurologic problems. Interventions: Subjects performed grasping tasks with their prosthesis, while controlling a virtual car on a road with their intact hand. The dual task was performed twice: with and without vibrotactile feedback. Main measures: Performance time of each of the grasping tasks and gaze behavior, measured by the number of times the subjects shifted their gaze toward their hand, the relative time they applied their attention to the screen, and percentage of error in the secondary task. Results: The mean performance time was significantly shorter (P = 0.024) when using vibrotactile feedback (93.2 ± 9.6 seconds) compared with the performance time measured when vibrotactile feedback was not available (107.8 ± 20.3 seconds). No significant differences were found between the two conditions in the number of times the gaze shifted from the screen to the hand, in the time the subjects applied their attention to the screen, and in the time the virtual car was off-road, as a percentage of the total game time (51.4 ± 15.7 and 50.2 ± 19.5, respectively). Conclusion: Adding vibrotactile feedback improved performance time during grasping in a dual-task paradigm. Prosthesis users may use vibrotactile feedback to perform better during daily tasks, when multiple cognitive demands are present.
DOI：
10.1016/s0197-2456(98)00037-3
发表时间：
1998-12-01
期刊：
CONTROLLED CLINICAL TRIALS
影响因子：
--
作者：
Dupont, WD;Plummer, WD
通讯作者：
Plummer, WD