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Spatial Cognition and Episodic Memory Formation in the Limbic Cortex Yasushi Kobayashi 1 1Department of Anatomy and Neurobiology, National Defence Medical College Keyword: 皮質領野 , 細胞構築 , 線維連絡 , 帯状回 , 霊長類 , cortical areas , cytoarchitecture , fiber connection , cingulate gyrus , primate pp.427-437
Published Date 2017/4/1
DOI https://doi.org/10.11477/mf.1416200760
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Abstract

The limbic lobe defined by Broca is a cortical region with highly diverse structure and functions, and comprises the paleo-, archi-, and neocortices as well as their transitional zones. In the limbic lobe, Brodmann designated areas 27, 28, 34, 35, and 36 adjacent to the hippocampus, and areas 23, 24, 25, 26, 29, 30, 31, 32, and 33 around the corpus callosum. In the current literature, areas 27 and 28 correspond to the presubiculum and entorhinal cortex, respectively. Area 34 represents the cortico-medial part of the amygdaloid complex. Areas 35 and 36 roughly cover the perirhinal and parahippocampal cortices. Areas 24, 25, 32, and 33 belong to the anterior cingulate gyrus, while areas 23, 26, 29, 30, and 31 to the posterior cingulate gyrus. Areas 25, 32, and the anteroinferior portion of area 24 are deeply involved in emotional responses, particularly in their autonomic functions, through reciprocal connections with the amygdaloid complex, anterior thalamus and projections to the brainstem and spinal visceral centers. Areas 29 and 30 have dense reciprocal connections with areas 23 and 31, the dorsolateral prefrontal areas, and the regions related to the hippocampus. They play pivotal roles in mediating spatial cognition, working memory processing, and episodic memory formation.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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