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The many dimensions underlying perceived softness: How exploratory procedures are influenced by material and the perceptual task*

机译：感知柔软度的许多维度：探索性程序如何受到材料和知觉任务的影响 *

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Haptic research has traditionally often equated softness with compliance. However, in a recent study we have suggested that compliance is not the only perceived object dimension underlying what is commonly called softness [1]. Here, we investigate how the different perceptual dimensions of softness affect how materials are haptically explored. Participants freely explored and rated 19 materials on 15 adjectives. The adjectives defined different perceptual tasks by being associated with different softness dimensions. Materials were chosen to represent extreme values separately for each dimension; some materials served as control. Hand movements were recorded on video and subsequently categorized into different exploratory procedures (EPs). A multivariate analysis of variance (MANOVA) yielded significant effects of material, of the perceptual task and of their interaction. Taken together, the results suggest that participants actively adapt their EPs to both the type of material being explored, and to the judged softness dimension, and thus support the notion of different dimensions of softness.
机译：传统上，触觉研究通常将柔软性与顺应性等同起来。但是，在最近的一项研究中，我们建议顺应性不是通常被称为“柔软性”的唯一感知对象尺寸[1]。在这里，我们研究柔软度的不同感知维度如何影响触觉探索材料的方式。参与者自由地探索了15种形容词上的19种材料并对其进行了评级。形容词通过与不同的柔软度相关联来定义不同的感知任务。选择材料以分别代表每个维度的极值;一些材料作为对照。将手的动作记录在视频中，然后分为不同的探索程序（EP）。多元方差分析（MANOVA）对材料，感知任务及其相互作用产生了重大影响。两者合计，结果表明，参与者积极地使他们的EP适应正在探索的材料类型以及所判断的柔软度尺寸，从而支持不同柔软度尺寸的概念。

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