The use of proprioception and tactile information in haptic search
The use of proprioception and tactile information in haptic search
复制标题
DOI：
10.1016/j.actpsy.2008.04.011
复制
发表时间：
2008-09-01
影响因子：
1.8
通讯作者：
Brenner, E.
中科院分区：
文献类型：
--
作者：
Overvliet, K. E.;Smeets, J. B. J.;Brenner, E.
为了研究触觉和本体感受信息是如何用于触觉物体辨别的，我们进行了一个触觉搜索任务，参与者必须在对齐的立方体网格中搜索圆柱体、棒或旋转的立方体。来自一个手指的触觉信息足以检测立方体中的圆柱体。对于检测一个酒吧或旋转立方体之间的立方体触摸单独是不够的。对于旋转的立方体，这是显而易见的，因为它的形状是相同的非目标，所以本体感受必须提供有关的手指和手触摸它时的方向的信息。对于酒吧一个人需要的本体感受信息的距离和方向的一个手指的运动沿着表面，或从几个手指的本体感受信息，当他们同时触摸它。当只使用一个手指时，搜索酒吧的时间比其他两个目标要长得多。当使用整个手或双手的搜索时间是相似的所有形状。大多数错误是在搜索旋转立方体时发生的。这可能是由于基于本体感觉判断方向时的系统性姿势相关偏差。结果表明，触觉和本体感受信息很容易结合形状的歧视。(C)2008 Elsevier B.V.保留所有权利。
To investigate how tactile and proprioceptive information are used in haptic object discrimination we conducted a haptic search task in which participants had to search for either a cylinder a bar or a rotated, cube within a grid of aligned cubes. Tactile information from one finger is enough to detect a cylinder amongst the cubes. For detecting a bar or a rotated cube amongst cubes touch alone is not enough. For the rotated cube this is evident because its shape is identical to that of the non-targets, so proprioception must provide information about the orientation of the fingers and hand when touching it. For the bar one either needs proprioceptive information about the distance and direction of a single finger's movements along the surfaces, or proprioceptive information from several fingers when they touch it simultaneously. When using only one finger, search times for the bar were much longer than those for the other two targets. When the whole hand or both hands were used the search times were similar for all shapes. Most errors were made when searching for the rotated cube. probably due to systematic posture-related biases in judging orientation on the basis of proprioception. The results suggest that tactile and proprioceptive information are readily combined for shape discrimination. (C) 2008 Elsevier B.V. All rights reserved.