Auditory and action semantic features activate sensory-specific perceptual brain regions
Auditory and action semantic features activate sensory-specific perceptual brain regions
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DOI：
10.1016/j.cub.2003.09.039
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发表时间：
2003-10-14
期刊：
影响因子：
9.2
通讯作者：
Gauthier, I
中科院分区：
文献类型：
--
作者：
James, TW;Gauthier, I
传统上，概念被认为是命题的，非模态的，和口头的性质（审查，见[1]）。然而，最近的研究表明，概念知识可以分为不同的类型（L。Wu和L.W. Barsalou，个人交流，[2]），每种类型都可能与特定的感觉和运动过程有关[3，4]。这意味着大脑的感觉处理区域也可以处理概念。事实上，有一些神经影像学证据表明，概念信息确实会激活大脑的感知区域，并且知识类型和被激活的区域之间存在对应关系[5，6]。在下面的实验中，使用在以前的研究中开发的训练技术[7，8]，参与者口头学习新物体和概念特征之间的关联。其目的是创建对象，这些对象仅与来自一种知识类型的特征相关联，这在常见对象中是不会发生的。在不需要检索学习到的关联的视觉任务期间，对声音反应良好的上级颞回优先被与听觉特征相关的物体激活（例如，嗡嗡声）。同样，对运动反应良好的后上级颞沟优先被与“动作”特征相关联的物体激活（例如，啤酒花）。这些发现支持了知识是基于感知的理论。
Traditionally, concepts were considered propositional, amodal, and verbal in nature (for review, see [1]). Recent findings, however, suggest that conceptual knowledge is divisible into different types (L. Wu and L.W. Barsalou, personal communication, [2]) and that each type may be linked to specific sensory and motor processes [3, 4]. This implies that sensory processing regions of the brain may also process concepts. In fact, there is some neuroimaging evidence that conceptual information does activate perceptual brain regions and that there is a correspondence between knowledge type and the region being activated [5, 6]. In the following experiment, using a training technique developed in previous studies [7,8], participants verbally learned associations between novel objects and conceptual features. The objective was to create objects that were associated with features from only one knowledge type, something that does not occur with common objects. During a visual task that did not require retrieval of learned associations, the superior temporal gyrus, which responds well to sounds, was preferentially activated by objects associated with auditory features (e.g., buzzes). Likewise, the posterior superior temporal sulcus, which responds well to motion, was preferentially activated by objects associated with "action" features (e.g., hops). These findings support the theory that knowledge is grounded in perception.