Streit Matthew, Shockley Kevin, Riley Michael A
Department of Psychology, University of Cincinnati, Cincinnati, Ohio 45221-0376, USA.
Psychon Bull Rev. 2007 Oct;14(5):1001-6. doi: 10.3758/bf03194135.
Perceived heaviness of wielded objects has been shown to be a function of the objects' rotational inertia--the objects' resistance to rotational acceleration. Studies have also demonstrated that if virtual objects rotate faster than the actual wielded object (i.e., a rotational gain is applied to virtual object motion), the wielded object is perceived as systematically lighter. The present research determined whether combining those inertial and visual manipulations would influence heaviness perception in a manner consistent with an inertial model of multimodal heaviness perception. Rotational inertia and optical rotational gain of wielded objects were manipulated to specify inertia multimodally. Both visual and haptic manipulations significantly influenced perceived heaviness. The results suggest that rotational inertia is detected multimodally and that multimodal heaviness perception conforms to an inertial model.
已表明，被挥动物体的感知重量是物体转动惯量的函数——物体对转动加速度的阻力。研究还表明，如果虚拟物体的旋转速度比实际挥动的物体快（即对虚拟物体运动应用了旋转增益），则会感觉挥动的物体系统地变轻。本研究确定，将这些惯性和视觉操作结合起来是否会以与多模态重量感知的惯性模型一致的方式影响重量感知。通过操纵被挥动物体的转动惯量和光学旋转增益来多模态地指定惯性。视觉和触觉操作均显著影响了感知重量。结果表明，转动惯量是通过多模态检测的，且多模态重量感知符合惯性模型。
