Roughness perception of unfamiliar dot pattern textures
Roughness perception of unfamiliar dot pattern textures
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DOI：
10.1016/j.actpsy.2013.02.002
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发表时间：
2013-05-01
影响因子：
1.8
通讯作者：
Goebel, Rainer
中科院分区：
文献类型：
--
作者：
Eck, Judith;Kaas, Amanda L.;Goebel, Rainer
视觉和触摸产生类似的结果，在粗糙度估计熟悉的纹理，如在早期的研究中所示。目前还没有关于刺激材料的感觉熟悉度对不熟悉纹理粗糙度估计影响的研究，本研究通过五个实验探讨了感觉通道和熟悉度对点状纹理粗糙度感知的影响。参与者估计粗糙度的纹理不同的平均中心到中心的点间距在实验条件下提供视觉，触觉和视觉触觉相结合的informations.The研究结果表明，粗糙度感知陌生的点图案textures是很好地描述了由一个双指数函数的点间距，无论使用的感觉方式。然而，感觉模态似乎影响心理物理粗糙度函数的最大值，视觉感知的粗糙度峰值比触觉粗糙度更小的点间间距。我们认为，这可能是由于更好的视觉形态的空间敏锐度。个人似乎使用不同的视觉粗糙度估计策略，这取决于他们的第一次感官体验（视觉与触觉）的刺激材料，主要是在一个实验的背景下，需要在一个单一的双峰粗糙度估计的视觉和触觉信息的组合。此外，在使用真实的和虚拟的视觉纹理的实验设置中的结果的相似性表明神经成像研究的实验设置的适用性，创建行为和神经成像结果之间的更直接的联系。(C)2013爱思唯尔有限公司版权所有。
Both vision and touch yield comparable results in terms of roughness estimation of familiar textures as was shown in earlier studies. To our knowledge, no research has been conducted on the effect of sensory familiarity with the stimulus material on roughness estimation of unfamiliar textures.The influence of sensory modality and familiarity on roughness perception of dot pattern textures was investigated in a series of five experiments. Participants estimated the roughness of textures varying in mean center-to-center dot spacing in experimental conditions providing visual, haptic and visual-haptic combined information.The findings indicate that roughness perception of unfamiliar dot pattern textures is well described by a bi-exponential function of inter-dot spacing, regardless of the sensory modality used. However, sensory modality appears to affect the maximum of the psychophysical roughness function, with visually perceived roughness peaking for a smaller inter-dot spacing than haptic roughness. We propose that this might be due to the better spatial acuity of the visual modality. Individuals appeared to use different visual roughness estimation strategies depending on their first sensory experience (visual vs. haptic) with the stimulus material, primarily in an experimental context which required the combination of visual and haptic information in a single bimodal roughness estimate. Furthermore, the similarity of findings in experimental settings using real and virtual visual textures indicates the suitability of the experimental setup for neuroimaging studies, creating a more direct link between behavioral and neuroimaging results. (C) 2013 Elsevier B.V. All rights reserved.