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DLPFC在MCI患者和正常老年人归纳推理过程中的作用:一项fMRI研究 被引量:6

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摘要 以往对青年人被试的研究发现,左侧背外侧前额(DLPFC)在归纳推理过程中起着非常重要的作用.本研究使用功能磁共振成像(fMRI)考查这一脑区是否也在轻度认知障碍(MCI)患者及正常老年人进行归纳推理时被显著激活,以及MCI患者和正常老年人在激活模式上是否存在差异.实验结果发现,与正常老年人相比,MCI患者在行为数据(反应时和正确率)和DLPFC的激活模式上没有差异,但MCI患者DLPFC的BOLD信号强度低于正常老年人,双侧DLPFC的功能连接强度显著高于正常老年人.这可能是由于MCI患者在DLPFC的功能减弱,因而需要加强与对侧脑区的协同来完成认知加工.总之,这一结果表明,与青年人一样,DLPFC在老年人的归纳推理中也起着重要作用,而且DLPFC功能的改变可能是一个先于影像学形态结构改变的MCI的早期诊断标记.
出处 《中国科学(C辑)》 CSCD 北大核心 2009年第7期711-716,共6页 Science in China(Series C)
基金 国家自然科学基金(批准号:60775039和30770620) 日本学术振兴会科学研究基金(批准号:18300053) 北京市人才强教计划 北京工业大学优秀博士生创新基金资助项目
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参考文献24

  • 1Goel V, Gold B, Kapur S, et al. The seats of reason? An imaging study of deductive and inductive reasoning. NeuroReport, 1997, 8: 1305--1310.
  • 2Goel V, Dolan RJ. Different involvement of left prefrontal cortex in inductive and deductive reasoning. Cognition, 2004, 93:B109--B121.
  • 3Christoff K, Prabhakaran V. Rostrolateral prefrontal cortex involvement in relational integration during reasoning. Neuro Image, 2001, 14(5): 1136--1149.
  • 4梁佩鹏 贾秀琴 杨延辉 等.归纳力度判断的脑区定位:fMRI研究.第三届全国脑与认知科学研讨会暨脑与认知科学国际研讨会[J].生物化学与生物物理进展,2007,34(2):66-66.
  • 5钟宁,梁佩鹏,秦裕林,吕胜富,杨延辉,李坤成.数据驱动的科学发现的神经机制:一项fMRI研究[J].中国科学(C辑),2009,39(3):271-278. 被引量:6
  • 6Liang P, Zhong N, Lu S, et al. The neural mechanism of human numerical inductive reasoning process: a combined ERP and fMRI study. LNAI 4845, Springer, 2007:223- 243.
  • 7Liang P, Zhong N, Lu S, et al. ERP Characteristics of human sentential inductive reasoning in time and frequency domain. Cogn Syst Res, in press.
  • 8Langdon D, Warrington E K. The role of the left hemisphere in verbal and spatial reasoning tasks. Cortex, 2000, 36(5): 691--702.
  • 9Gazzaniga M s, Smylie C S. Dissociation of language and cognition. Brain, 1984, 107(1): 14~153.
  • 10Smith E E, Rhee J, Dennis K, et al. Inductive reasoning in Alzheimer's disease. Brain Cogn, 2001, 47:494--503.

二级参考文献44

  • 1Prabhakaran V, Smith J A L, Desmond J E, et al. Neural substrates of fluid reasoning: An fMRI study of neocortical activation during performance of the Raven's Progressive Matrices Test. Cognitive Psychol, 1997, 33:43--63.
  • 2Reverberi C, Lavaroni A, Gigli G L, et al. Specific impairments of rule induction in different frontal lobe subgroups. Neuropsycholo- gia, 2005, 43(3): 460--472.
  • 3Geake J G, Hansen P H. Neural correlates of intelligence as revealed by fMRI of fluid analogies. Neurolmage, 2005, 26(2): 555--564.
  • 4Liang P P, Zhong N, Lu S F, et al. The neural mechanism of human numerical inductive reasoning process: a combined ERP and fMRI study. LNA1, 2007, 4845:223 -243.
  • 5Christoff K, Ream J M, Geddes L P T, et al. Evaluating self-generated information: anterior prefrontal contributions to human cogni- tion. Behav Neurosci, 2003, 117(6): 1161- 1168.
  • 6Sakai K, Passingham R E. Prefrontal interactions reflect future task operations. Nat Neurosci, 2003, 6(1): 75--81.
  • 7Christoff K, Gabrieli J E. The frontopolar cortex and human cognition: evidence for a rostrocaudal hierarchical organization within the human prefrontal cortex. Psychobiology, 2000, 28(2): 168--186.
  • 8Christoff K, Prabhakaran V, Dorfman J, et al. Rostrolateral prefrontal cortex involvement in relational integration during reasoning. NeuroImage, 2001, 14(5): 1136--1149.
  • 9Langley P, Zytkow J M. Data-driven approaches to empirical discovery. Artif Intell, 1989, 40:283--312.
  • 10Wason P C. Reasoning about a rule. Q J Exp Psychol, 1968, 20(3): 273--281.

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