Functional brain mapping of monkey tool use
Functional brain mapping of monkey tool use
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DOI：
10.1006/nimg.2001.0878
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发表时间：
2001-10-01
期刊：
影响因子：
5.7
通讯作者：
Iriki, A
中科院分区：
文献类型：
--
作者：
Obayashi, S;Suhara, T;Iriki, A
当使用工具时，我们可以感知到工具和身体部位之间的心理联系--工具被纳入我们的“身体形象”。在使用工具的过程中，猴子大脑皮层顶叶区域的双峰(触觉和视觉)神经元的视觉反应特性被修改，以包括手持工具。猴子顶内神经元的视觉特性可能代表了大脑中的身体形象。我们使用正电子发射断层扫描(PET)研究了工具使用引起的顶叶内区域和警觉猴大脑其他部位的激活。工具使用相关活动与对照条件(简单的棍子操作)相比，显示相应的顶内区、基底节、补充前运动区、运动前皮质和小脑的脑血流量显著增加。这些工具使用特定的区域可以参与维护和更新身体图像，以精确地引导手持铲子到达远处的奖励。(C)2001年学术出版社。
When using a tool, we can perceive a psychological association between the tool and the body parts-the tool is incorporated into our "body-image." During tool use, visual response properties of bimodal (tactile and visual) neurons in the intraparietal area of the monkey's cerebral cortex were modified to include the hand-held tool. Visual properties of the monkey intraparietal neurons may represent the body-image in the brain. We explored tool use-induced activation within the intraparietal area and elsewhere in alert monkey brain using positron emission tomography (PET). Tool use-related activities compared with the control condition (simple-stick manipulation) revealed a significant increase in cerebral blood flow in the corresponding intraparietal region, basal ganglia, presupplementary motor area, premotor cortex, and cerebellum. These tool use-specific areas may participate in maintaining and updating the body-image for the precise guidance of a hand-held rake onto a distant reward. (C) 2001 Academic Press.