Are surface properties integrated into visuohaptic object representations?
Are surface properties integrated into visuohaptic object representations?
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DOI：
10.1111/j.1460-9568.2010.07204.x
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发表时间：
2010-05
期刊：
影响因子：
--
通讯作者：
Sathian K
中科院分区：
文献类型：
--
作者：
Lacey S;Hall J;Sathian K
物体识别研究几乎完全涉及视觉，关注的是形状而不是表面属性，如颜色。视觉对象表征被认为集成了形状和颜色信息，因为改变被研究对象的颜色会损害它们随后的识别。然而，关于表面特性与视觉-触觉多感官表征的整合还知之甚少。在这里，参与者研究了具有不同表面属性模式的物体(实验1中的颜色，实验2和实验3中的纹理)，并必须区分在模式内(视觉和触觉)和跨模式(视觉研究/触觉测试，反之亦然)条件下颜色/纹理方案改变时的对象形状。在实验1中，颜色变化损害了通道内视觉识别，但对跨通道识别没有影响，这表明多感觉表征不受通道特定表面属性的影响。在实验2中，纹理改变在所有条件下都损害了识别，这表明单感觉和多感觉表征都整合了与通道无关的表面属性。然而，跨通道损伤可能反映了质地的改变或未能形成多感觉表征。实验3试图通过将质地的变化与方位的变化相结合来区分这些可能性，利用多感觉表征的已知视点独立性，但由于质地变化的压倒性影响，结果并不是决定性的。最简单的解释是，多感官表征整合了与形状和形态无关的表面属性。然而，需要更多的工作来研究这一点以及结构和表面属性的多感觉整合发生的条件。
Object recognition studies have almost exclusively involved vision, focusing on shape rather than surface properties such as color. Visual object representations are thought to integrate shape and color information because changing the color of studied objects impairs their subsequent recognition. However, little is known about integration of surface properties into visuo-haptic multisensory representations. Here, participants studied objects with distinct patterns of surface properties (color in Experiment 1, texture in Experiments 2 & 3) and had to discriminate between object shapes when color/texture schemes were altered in within-modal (visual and haptic) and cross-modal (visual study/haptic test and vice versa) conditions. In Experiment 1, color changes impaired within-modal visual recognition but had no effect on cross-modal recognition, suggesting that the multisensory representation is not influenced by modality-specific surface properties. In Experiment 2, texture changes impaired recognition in all conditions, suggesting that both unisensory and multisensory representations integrate modality-independent surface properties. However, the cross-modal impairment might have reflected either the texture change or a failure to form the multisensory representation. Experiment 3 attempted to distinguish between these possibilities by combining changes in texture with changes in orientation, taking advantage of the known view-independence of the multisensory representation, but the results were not conclusive owing to the overwhelming effect of texture change. The simplest account is that the multisensory representation integrates shape and modality-independent surface properties. However, more work is required to investigate this and the conditions under which multisensory integration of structural and surface properties occurs.
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影响因子：
2.6
作者：
Prather, SC;Votaw, JR;Sathian, K
通讯作者：
Sathian, K
DOI：
10.1016/j.cogbrainres.2004.10.020
发表时间：
2005-05-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
Newman, SD;Klatzky, RL;Just, MA
通讯作者：
Just, MA
影响因子：
25
作者：
Amedi, A;Malach, R;Zohary, E
通讯作者：
Zohary, E
影响因子：
2
作者：
Cant, Jonathan S.;Arnott, Stephen R.;Goodale, Melvyn A.
通讯作者：
Goodale, Melvyn A.
影响因子：
1.7
作者：
Therriault, David J.;Yaxley, Richard H.;Zwaan, Rolf A.
通讯作者：
Zwaan, Rolf A.