The contribution of cutaneous and kinesthetic sensory modalities in haptic perception of orientation
The contribution of cutaneous and kinesthetic sensory modalities in haptic perception of orientation
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DOI：
10.1016/j.brainresbull.2010.11.011
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发表时间：
2011-06-30
影响因子：
3.8
通讯作者：
Bergamasco, Massimo
中科院分区：
文献类型：
--
作者：
Frisoli, Antonio;Solazzi, Massimiliano;Bergamasco, Massimo
本研究的目的是了解整合的皮肤和动觉感觉方式的触觉感知的形状方向。一个特定的机器人设备被用来模拟探索虚拟表面的主动触摸与两个手指，与动觉，皮肤只有和组合的感觉反馈。皮肤反馈能够显示接触点处的局部表面取向，通过在接触时压入指垫的小板。采用SDT方法对6名受试者进行了心理物理学测试，以评估两个平行表面之间的角度知觉的辨别阈值，具有三种感觉模态和两种形状尺寸。结果表明，皮肤传感器模态不受形状大小的影响，但动觉性能随着尺寸的减小而降低。皮肤和动觉的感觉线索根据贝叶斯模型进行整合，使得组合的感觉刺激总是比单独的单一方式表现得更好。(C)2010年爱思唯尔公司All rights reserved.
The aim of this study was to understand the integration of cutaneous and kinesthetic sensory modalities in haptic perception of shape orientation. A specific robotic apparatus was employed to simulate the exploration of virtual surfaces by active touch with two fingers, with kinesthetic only, cutaneous only and combined sensory feedback. The cutaneous feedback was capable of displaying the local surface orientation at the contact point, through a small plate indenting the fingerpad at contact. A psychophysics test was conducted with SDT methodology on 6 subjects to assess the discrimination threshold of angle perception between two parallel surfaces, with three sensory modalities and two shape sizes. Results show that the cutaneous sensor modality is not affected by size of shape, but kinesthetic performance is decreasing with smaller size. Cutaneous and kinesthetic sensory cues are integrated according to a Bayesian model, so that the combined sensory stimulation always performs better than single modalities alone. (C) 2010 Elsevier Inc. All rights reserved.