A New Method for Haptic Shape Discriminability Detection
A New Method for Haptic Shape Discriminability Detection
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DOI：
10.3390/app11157049
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发表时间：
2021-08-01
影响因子：
2.7
通讯作者：
Wu, Jinglong
中科院分区：
文献类型：
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作者：
Liu, Yulong;Yang, Jiajia;Wu, Jinglong
触觉形状辨别不仅与触觉机械感受器密切相关，而且与高级认知功能密切相关。然而，以前的形状识别方法难以在短时间内完成，并且设备操作复杂，对于非专业人员来说不友好。本文提出了一种新的方法，其评价量为角度判别阈值。此外，为了使这种方法易于使用的非专业人士，我们设计了一个触觉角度排序系统，包括设备和软件。为了评估这种方法，角度排序和两个角度的歧视实验进行了比较，它被发现，参与者在前一个实验中花费的时间显着少于后者。同时，角度分选性能与双角度辨别性能之间存在较强的相关性，说明新方法得到的角度阈值也可以用来评价触摸辨别能力。而且，不同年龄段的角度排序结果也进一步证明了该方法的可行性。这种新方法的高效性和系统的有效性也为评价触觉形状辨别力提供了方便的手段，可能在周围神经病变的早期诊断乃至认知功能的评价中具有潜在的临床应用价值。
Touch shape discrimination is not only closely related to tactile mechanoreceptors but also higher cognitive function. However, previous shape discrimination methods are difficult to complete in a short time, and the devices are complicated to operate and not user-friendly for nonprofessionals. Here, we propose a new method, the evaluation quantity of which is the angle discrimination threshold. In addition, to make this method easy to use for nonprofessionals, we designed a haptic angle sorting system, including the device and software. To evaluate this method, the angle sorting and two-angle discrimination experiments were compared, and it was found that participants spent significantly less time in the former experiment than in the latter. At the same time, there is a strong correlation between the performance of angle sorting and two-angle discrimination, which shows that the angle threshold obtained by the new method can also be used to evaluate the ability of touch discrimination. Moreover, the angle sorting results of different age groups also further demonstrate the feasibility of the method. The efficiency of this new method and the effectiveness of the system also provide a convenient means for evaluating haptic shape discrimination, which may have potential clinical application value in the early diagnosis of peripheral neuropathy and even in the evaluation of cognitive function.