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重复使用增强型振动触觉反馈进行训练可提高物体操作性能。

Repeated training with augmentative vibrotactile feedback increases object manipulation performance.

机构信息

Department of Speech, Language, and Hearing Sciences, Boston University, Boston, Massachusetts, United States of America.

出版信息

PLoS One. 2012;7(2):e32743. doi: 10.1371/journal.pone.0032743. Epub 2012 Feb 27.

DOI:10.1371/journal.pone.0032743
PMID:22384283
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3287982/
Abstract

Most users of prosthetic hands must rely on visual feedback alone, which requires visual attention and cognitive resources. Providing haptic feedback of variables relevant to manipulation, such as contact force, may thus improve the usability of prosthetic hands for tasks of daily living. Vibrotactile stimulation was explored as a feedback modality in ten unimpaired participants across eight sessions in a two-week period. Participants used their right index finger to perform a virtual object manipulation task with both visual and augmentative vibrotactile feedback related to force. Through repeated training, participants were able to learn to use the vibrotactile feedback to significantly improve object manipulation. Removal of vibrotactile feedback in session 8 significantly reduced task performance. These results suggest that vibrotactile feedback paired with training may enhance the manipulation ability of prosthetic hand users without the need for more invasive strategies.

摘要

大多数假肢手的使用者必须仅依靠视觉反馈,这需要视觉注意和认知资源。因此,提供与操作相关的变量(如接触力)的触觉反馈可能会提高假肢手在日常生活任务中的可用性。在两周的时间内,通过八个会话,研究了十种非损伤参与者的振动触觉刺激作为反馈方式。参与者使用他们的右食指进行虚拟对象操作任务,同时具有与力相关的视觉和增强的振动触觉反馈。通过反复训练,参与者能够学会使用振动触觉反馈来显著改善物体操作。在第 8 会话中去除振动触觉反馈会显著降低任务性能。这些结果表明,振动触觉反馈与训练相结合可能会增强假肢手使用者的操作能力,而无需更具侵入性的策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d593/3287982/46de79589f35/pone.0032743.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d593/3287982/02c199e725c1/pone.0032743.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d593/3287982/46de79589f35/pone.0032743.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d593/3287982/02c199e725c1/pone.0032743.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d593/3287982/46de79589f35/pone.0032743.g002.jpg

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IEEE Trans Neural Syst Rehabil Eng. 2011 Dec;19(6):677-85. doi: 10.1109/TNSRE.2011.2168981. Epub 2011 Oct 6.
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Impacts of selected stimulation patterns on the perception threshold in electrocutaneous stimulation.
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