Asymmetric Oscillation Distorts the Perceived Heaviness of Handheld Objects
Asymmetric Oscillation Distorts the Perceived Heaviness of Handheld Objects
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DOI：
10.1109/toh.2008.5
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发表时间：
2008-01-01
影响因子：
2.9
通讯作者：
Maeda, Taro
中科院分区：
文献类型：
--
作者：
Amemiya, Tomohiro;Maeda, Taro
三个多世纪以来，体重感知一直备受关注。大多数研究都与静态物体的重量有关，并且发现了一些错觉。在这里，我们展示了一种与振动物体的重量感知有关的新错觉。我们进行的实验涉及比较两个物体的重量，这两个物体具有相同的物理外观，但具有不同的总重量和振荡模式（以5或9周期/秒的频率垂直振动，具有对称和不对称的加速度模式）。结果表明，当加速度峰值在重力方向上时，非对称加速度振动物体的感知重量比对称加速度振动物体的感知重量增加。相比之下，在反重力方向几乎没有观察到沉重感的变化。我们推测，这些结果之间的分歧的原因是由这两个假设的感知机制的差异影响如下：脉冲刺激的显着性似乎有很强的影响力在重力方向，而填充可以解释我们的观察结果在反重力方向。这种触觉错觉的研究不仅可以为人类的感知机制提供有价值的见解，也可以为无基础的触觉界面的设计提供有价值的见解。
Weight perception has been of great interest for over three centuries. Most research has been concerned with the weight of static objects, and some illusions have been discovered. Here, we show a new illusion related to the perception of the heaviness of oscillating objects. We performed experiments that involved comparing the weight of two objects of identical physical appearance but with different gross weights and oscillation patterns (vibrating vertically at frequencies of 5 or 9 cycles/s with symmetric and asymmetric acceleration patterns). The results show that the perceived weight of an object vibrating with asymmetric acceleration increases compared to that with symmetric acceleration when the acceleration peaks in the gravity direction. In contrast, almost no heaviness perception change was observed in the antigravity direction. We speculate that the reason for the divergence between these results is caused by the differential impact of these two hypothesized perceptual mechanisms as follows: the salience of pulse stimuli appears to have a strong influence in the gravity direction, whereas filling-in could explain our observations in the antigravity direction. The study of this haptic illusion can provide valuable insights into not only human perceptual mechanisms but also the design of ungrounded haptic interfaces.