Neural substrates of action event knowledge
Neural substrates of action event knowledge
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DOI：
10.1162/08989290260138681
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发表时间：
2002-07-01
影响因子：
3.2
通讯作者：
Chatterjee, A
中科院分区：
文献类型：
--
作者：
Kable, JW;Lease-Spellmeyer, J;Chatterjee, A
人类的概念可以大致分为实体（在语言中原型地由名词指代）和事件（在语言中原型地由动词指代），虽然认知神经科学中的许多工作已经研究了大脑如何表示不同类别的实体，但较少关注实体和事件之间更基本的区别。我们使用功能性磁共振成像来检查大脑活动，同时受试者执行一项概念匹配任务，要求他们使用图片或文字来获取物体和动作的知识。由于动作事件涉及通过空间的运动，我们假设，访问知识的行动将导致更大的激活，在涉及运动或空间处理的大脑区域，在比较对象，访问知识的行动，通过图片伴随着增加活动的双边在人类MT/MST和附近区域的侧颞叶皮层。通过词语来认知动作激活了左侧MT/MST区的前部和背部，位于颞中回和上级回的后部。我们认为，外侧枕颞皮层包含一个处理不同类型运动的神经区域的马赛克，从感知世界中移动的物体到动作动词中隐含的运动概念。外侧枕颞叶皮层介导动作事件的感知和概念特征，类似于腹侧枕颞叶皮层处理实体的感知和概念特征的方式。
Human concepts can be roughly divided into entities (prototypically referral to in language by nouns) and events (prototypically referred to in language by verbs), While much work in cognitive neuroscience has investigated how the brain represents different categories of entities, less attention has been given to the more basic distinction between entities and events. We used functional magnetic resonance imaging to examine brain activity while subjects performed a conceptual matching task that required their to access knowledge of objects and actions, using either pictures or words. Since action events involve movement through space, we hypothesized that accessing knowledge of actions would cause greater activation in brain regions involved in motion or spatial processing, In comparison to objects, accessing knowledge of actions through pictures was accompanied by increased activity bilaterally in the human MT/MST and nearby regions of the lateral temporal cortex. Accessing knowledge of actions through words activated areas just anterior and dorsal to area MT/MST on the left, within the posterior aspect of the middle and superior temporal gyri, We propose that the lateral occipital-temporal cortex contains a mosaic of neural regions that processes different kinds of motion, ranging from the perception of objects moving in the world to the conception of movement implied in action verbs. The lateral occipital-temporal cortex mediates the perceptual and conceptual features of action events, similar to the way that the ventral occipital-temporal cortex processes the perceptual and conceptual features of entities.