Differences of monkey and human overt attention under natural conditions
Differences of monkey and human overt attention under natural conditions
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DOI：
10.1016/j.visres.2005.08.032
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发表时间：
2006-04-01
期刊：
影响因子：
1.8
通讯作者：
König, P
中科院分区：
文献类型：
--
作者：
Einhäuser, W;Kruse, W;König, P
恒河猴被广泛用作人类注意力的动物模型。这种研究基于这样的假设，即两个物种的注意力机制相似。在这里，我们直接比较了自然条件下低水平刺激特征对猴子和人类的外显注意的影响。我们记录了人类和恒河猴在自由观看自然图像时的眼球运动。我们发现，内在的低层次的功能，如亮度对比度，纹理对比度和显着性，由一个标准的模型预测，在大多数图像的固定点升高。这些相关效应在物种之间没有显著差异。然而，局部图像修改对这两个物种的影响不同：适度的修改，这是在自然波动的范围内，在猴子中吸引明显的注意力比在人类中更强。此外，人类表现出更高的个体间的一致性，他们比猴子固定的位置，尽管内在的低层次功能的相似性。总之，这些数据表明，在自然条件下，低水平的刺激功能影响猴子和人类的注意力不同。(c)2005爱思唯尔有限公司保留所有权利。
Rhesus monkeys are widely used as animal models of human attention. Such research rests upon the assumption that similar mechanisms underlie attention in both species. Here, we directly compare the influence of low-level stimulus features on overt attention in monkeys and humans tinder natural conditions. We recorded eye-movements in humans and rhesus monkeys during free-viewing of natural images. We find that intrinsic low-level features, such luminance-contrast, texture-contrast and saliency-as predicted by a standard model, are elevated at fixation points in the majority of images. These correlative effects are not significantly different between species. However, local image modifications affect both species differently: moderate modifications, which are in the range of natural fluctuations, attract overt attention in monkeys significantly stronger than they do in humans. In addition, humans show a higher inter-individual consistency regarding which locations they fixate than monkeys, in spite of the similarity for intrinsic low-level features. Taken together, these data demonstrate that-under natural conditions-low-level stimulus features affect attention in monkeys and humans differently. (c) 2005 Elsevier Ltd. All rights reserved.