Touch influences perceived gloss.
Touch influences perceived gloss.
复制标题
触摸会影响感知的光泽。
DOI：
10.1038/srep21866
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发表时间：
2016-02-26
影响因子：
4.6
通讯作者：
Graf EW
中科院分区：
文献类型：
--
作者：
Adams WJ;Kerrigan IS;Graf EW
识别物体的材料属性支持识别和行动规划：我们根据我们期望它们有多重，硬或滑来抓住物体。材料质量的视觉线索，如光泽最近受到关注，但它们如何与触觉（触摸）信息相互作用在很大程度上被忽视了。在这里，我们展示了触摸调节光泽感知：感觉光滑的物体被感知为更光滑（更有光泽）。参与者探索了外观和感觉不同的虚拟物体。一个歧视范例（实验1）表明，观察员整合视觉光泽触觉信息。观察者可以很容易地检测到光泽度的增加，当它与摩擦力的减少配对时。相比之下，增加的光泽度加上减少的光滑度产生了一个小的感知变化：视觉和触觉的变化相互抵消。主观评级（实验2）反映了类似的相互作用-光滑的物体被评为glossier，反之亦然。感觉系统将视觉光泽和触觉摩擦视为表面材料的相关线索。虽然摩擦不是光泽度的完美预测器，但视觉系统似乎知道并使用这些变量之间的概率关系来偏见感知-考虑到光泽度的视觉线索的模糊性，这是一种明智的策略。
Identifying an object’s material properties supports recognition and action planning: we grasp objects according to how heavy, hard or slippery we expect them to be. Visual cues to material qualities such as gloss have recently received attention, but how they interact with haptic (touch) information has been largely overlooked. Here, we show that touch modulates gloss perception: objects that feel slippery are perceived as glossier (more shiny).Participants explored virtual objects that varied in look and feel. A discrimination paradigm (Experiment 1) revealed that observers integrate visual gloss with haptic information. Observers could easily detect an increase in glossiness when it was paired with a decrease in friction. In contrast, increased glossiness coupled with decreased slipperiness produced a small perceptual change: the visual and haptic changes counteracted each other. Subjective ratings (Experiment 2) reflected a similar interaction – slippery objects were rated as glossier and vice versa. The sensory system treats visual gloss and haptic friction as correlated cues to surface material. Although friction is not a perfect predictor of gloss, the visual system appears to know and use a probabilistic relationship between these variables to bias perception – a sensible strategy given the ambiguity of visual clues to gloss.