Naghavi Hamid Reza, Nyberg Lars
Psychiatry and Clinical Psychology Research Center, Tehran University of Medical Sciences, Roozbeh Hospital, South Kargar Street, 13185/1741 Tehran, Iran.
Conscious Cogn. 2005 Jun;14(2):390-425. doi: 10.1016/j.concog.2004.10.003. Epub 2004 Dec 8.
Fronto-parietal activity has been frequently observed in fMRI and PET studies of attention, working memory, and episodic memory retrieval. Several recent fMRI studies have also reported fronto-parietal activity during conscious visual perception. A major goal of this review was to assess the degree of anatomical overlap among activation patterns associated with these four functions. A second goal was to shed light on the possible cognitive relationship of processes that relate to common brain activity across functions. For all reviewed functions we observed a consistent and overlapping pattern of brain activity. The overlap was most pronounced for the bilateral parietal cortex (BA 7 and BA 40; close to the intraparietal sulcus), and dorsolateral prefrontal cortex (right BA 9 and left BA 6). The common fronto-parietal activity will be discussed in terms of processes related to integration of distributed representations in the brain.
在功能磁共振成像（fMRI）和正电子发射断层扫描（PET）对注意力、工作记忆和情景记忆检索的研究中，经常观察到额顶叶活动。最近的几项fMRI研究也报告了有意识视觉感知过程中的额顶叶活动。本综述的一个主要目标是评估与这四种功能相关的激活模式之间的解剖重叠程度。第二个目标是阐明与跨功能的共同脑活动相关的过程可能存在的认知关系。对于所有综述的功能，我们观察到了一致且重叠的脑活动模式。这种重叠在双侧顶叶皮层（BA 7和BA 40；靠近顶内沟）以及背外侧前额叶皮层（右侧BA 9和左侧BA 6）最为明显。将根据与大脑中分布式表征整合相关的过程来讨论常见的额顶叶活动。
