Brain activation modulated by sentence comprehension
Brain activation modulated by sentence comprehension
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DOI：
10.1126/science.274.5284.114
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发表时间：
1996-10-04
期刊：
影响因子：
56.9
通讯作者：
Thulborn, KR
中科院分区：
文献类型：
--
作者：
Just, MA;Carpenter, PA;Thulborn, KR
对视觉呈现的句子的理解产生大脑激活，该激活随着句子的语言复杂性而增加。在句子理解过程中激活的神经组织体积（体素数）用回波平面功能磁共振成像测量。句子复杂性对激活量的调节是在一个由左半球区域组成的网络中观察到的：经典的左半球语言区域（左颞叶上外侧皮层，或韦尼克区，和左额下回，或布罗卡区）和它们的同源右半球区域，尽管右半球区域的激活量比左半球区域小得多。这些发现通常表明，一个给定的认知过程产生的神经活动的数量取决于任务施加的计算需求。
The comprehension of visually presented sentences produces brain activation that increases with the linguistic complexity of the sentence. The volume of neural tissue activated (number of voxels) during sentence comprehension was measured with echo-planar functional magnetic resonance imaging. The modulation of the volume of activation by sentence complexity was observed In a network of lour areas: the classical left-hemisphere language areas (the left laterosuperior temporal cortex, or Wernicke's area, and the left inferior frontal gyrus, or Broca's area) and their homologous right-hemisphere areas, although the right areas had much smaller volumes of activation than did the left areas. These findings generally indicate that the amount of neural activity that a given cognitive process engenders is dependent on the computational demand that the task imposes.