Experience-dependent visual cue integration based on consistencies between visual and haptic percepts
Experience-dependent visual cue integration based on consistencies between visual and haptic percepts
复制标题
DOI：
10.1016/s0042-6989(00)00254-6
复制
发表时间：
2001-02-01
期刊：
影响因子：
1.8
通讯作者：
Jacobs, RA
中科院分区：
文献类型：
--
作者：
Atkins, JE;Fiser, J;Jacobs, RA
我们研究的假设，观察者可以使用触觉感知作为一个标准，对视觉线索的相对可靠性可以判断，这些可靠性决定观察者如何联合收割机提供的深度信息，这些线索。使用一种新的视觉-触觉虚拟现实环境，受试者观看和掌握虚拟物体。在实验1中。受试者在运动相关条件和纹理相关条件下训练，在运动相关条件下，触觉和视觉运动提示是一致的，而触觉和视觉纹理提示是不相关的，在纹理相关条件下，触觉和纹理提示是一致的，而触觉和运动提示是不相关的。运动相关训练后被试对运动线索的依赖性高于纹理相关训练后，纹理相关训练后被试对纹理线索的依赖性高于运动相关训练后。实验2研究了被试是否能根据触觉和视觉线索之间的上下文依赖关系，以上下文依赖的方式调整视觉线索组合策略。被试成功地平行学习了两种线索组合策略，并在适当的情境中正确地应用了每种策略。实验3，这是类似于实验，除了它使用了一个更自然的实验任务，产生了相同的模式的结果作为实验1表明，研究结果不依赖于实验任务的确切性质。总体而言，结果表明，观察者可以不自觉地比较视觉和触觉感知，以评估视觉线索的相对可靠性，这些可靠性确定如何在三维视觉感知的线索相结合。(C)2001爱思唯尔科技有限公司版权所有。
We study the hypothesis that observers can use haptic percepts as a standard against which the relative reliabilities of visual cues can be judged, and that these reliabilities determine how observers combine depth information provided by these cues. Using a novel visuo-haptic virtual reality environment, subjects viewed and grasped virtual objects. In Experiment 1. subjects were trained under motion relevant conditions, during which haptic and visual motion cues were consistent whereas haptic and visual texture cues were uncorrelated, and texture relevant conditions, during which haptic and texture cues were consistent whereas haptic and motion cues were uncorrelated. Subjects relied more on the motion cue after motion relevant training than after texture relevant training, and more on the texture cue after texture relevant training than after motion relevant training. Experiment 2 studied whether or not subjects could adapt their visual cue combination strategies in a context-dependent manner based on context-de pendent consistencies between haptic and visual cues. Subjects successfully learned two cue combination strategies in parallel, and correctly applied each strategy in its appropriate context. Experiment 3, which was similar to Experiment except that it used a more naturalistic experimental task, yielded the same pattern of results as Experiment 1 indicating that the findings do not depend on the precise nature of the experimental task. Overall, the results suggest that observers can involuntarily compare visual and haptic percepts in order to evaluate the relative reliabilities of visual cues, and that these reliabilities determine how cues are combined during three-dimensional visual perception. (C) 2001 Elsevier Science Ltd. All rights reserved.