【摘 要】
：
Deactivation has been encountered frequently in functional brain imaging researches. However,the deactivations during the numerical processing have not been rep
【机 构】
：
Institute of Neuroinformatics,State Key Laboratory of Brain and Cognitive Science
【基金项目】
：
高等学校博士学科点专项科研项目;国家高技术研究发展计划(863计划);国家自然科学基金
论文部分内容阅读
Deactivation has been encountered frequently in functional brain imaging researches. However,the deactivations during the numerical processing have not been reported yet. In this study,the functional magnetic resonance imaging (fMRI) was employed to investigate the pattern of the deactivation in the brain of 15 healthy subjects during the numerical addition task. Analyses revealed significant deactivations in several brain regions,including the posterior cingulate,precuneus,anterior cingulate and prefrontal cortex. Especially,we found notable deactivation in bilateral insula. Accounting for the cognitive functions of these regions participating in a combinated way,we discuss their contributions in sustaining the brain activity during conscious resting state,and indicate that the insula is an important area of gathering auditory information from the external world.
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