Connections of the medial posterior parietal cortex (area 7m) in the monkey
Connections of the medial posterior parietal cortex (area 7m) in the monkey
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DOI：
10.1002/ar.1082
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发表时间：
2001-06-01
影响因子：
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通讯作者：
Leichnetz, GR
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文献类型：
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作者：
Leichnetz, GR
采用逆行和逆行的辣根过氧化物酶（HRP）技术研究了头猴（cebus apella）和猕猴（Macaca fascicularis）内侧后顶叶皮层（7m区）的皮层传入和皮层下传入连接。头猴和猕猴7m区主要的顶内皮质连接为顶内沟内侧库（MIP）和邻近的顶叶上小叶（5区）、顶叶下小叶（7a区）、IFS外侧库（7ip区）、尾端顶叶盖层（PGop）、尾端颞上沟背侧库（视觉区MST）和内侧前状皮质（包括视觉区PO和尾侧小叶）。其主要的额皮质皮质连接位于主沟上方的肩前额皮质和弓状沟上支上方的肩前额皮质（SAS），其他研究者认为该区域包含脑猴的平滑眼动相关额视野（FEFsem）。与弓状沟吻侧侧（据称包含与眼珠相关的额视野；FEFsac）、辅助视野（SEF）和吻侧背侧运动前区（PMDr）的皮层有中等程度的连接。7区也与扣带皮层（23区）有主要连接，尤其是扣带沟腹侧。7m区的皮质下主要连接为丘脑腹外侧核（VLc）背侧、外侧丘脑后核、丘脑外侧核、尾侧丘脑中背外侧核和内侧丘脑内侧核、中央外侧核、中央上外侧核和中央下核、尾状核和壳核背外侧核、锁状体中部、对角带核、交错带核、膝前核、顶前核、顶后核、上丘中间层、Darkschewitsch核和背内侧细胞旁红核（仅限猕猴）、脑桥基底核背核、背外侧核、脑桥盖网状核、蓝斑核和中央上核。研究人员对这一发现进行了讨论，认为7m区域可能包含一个“内侧顶叶视野”，属于一个与眼球运动相关的神经网络，在眼球运动的控制中起作用。科学通报，2001,(3):344 - 344。(C) 2001 Wiley-Liss, Inc。
The afferent and efferent cortical and subcortical connections of the medial posterior parietal cortex (area 7m) were studied in cebus (Cebus apella) and macaque (Macaca fascicularis) monkeys using the retrograde and anterograde capabilities of the horseradish peroxidase (HRP) technique. The principal intraparietal corticocortical connections of area 7m in both cebus and macaque cases were with the ipsilateral medial bank of the intraparietal sulcus (MIP) and adjacent superior parietal lobule (area 5), inferior parietal lobule (area 7a), lateral bank of the IFS (area 7ip), caudal parietal operculum (PGop), dorsal bank of the caudal superior temporal sulcus (visual area MST), and medial prestriate cortex (including visual area PO and caudalmedial lobule). Its principal frontal corticocortical connections were with the prefrontal cortex in the shoulder above the principal sulcus and the cortex in the shoulder above the superior ramus of the arcuate sulcus (SAS), the area purported to contain the smooth eye movement-related frontal eye field (FEFsem) in the cebus monkey by other investigators. There were moderate connections with the cortex in the rostral bank of the arcuate sulcus (purported to contain the saccade-related frontal eye field; FEFsac), supplementary eye field (SEF), and rostral dorsal premotor area (PMDr). Area 7m also had major connections with the cingulate cortex (area 23), particularly the ventral bank of the cingulate sulcus. The principal subcortical connections of area 7m were with the dorsal portion of the ventrolateral thalamic (VLc) nucleus, lateral posterior thalamic nucleus, lateral pulvinar, caudal mediodorsal thalamic nucleus and medial pulvinar, central lateral, central superior lateral, and central inferior intralaminar thalamic nuclei, dorsolateral caudate nucleus and putamen, middle region of the claustrum, nucleus of the diagonal band, zona incerta, pregeniculate nucleus, anterior and posterior pretectal nuclei, intermediate layer of the superior colliculus, nucleus of Darkschewitsch and dorsomedial parvicellular red nucleus (macaque cases only), dorsal, dorsolateral and lateral basilar pontine nuclei, nucleus reticularis tegmenti pontis, locus ceruleus, and superior central nucleus. The findings are discussed in terms of the possibility that area 7m contains a "medial parietal eye field" and belongs to a neural network of oculomotor-related structures that plays a role in the control of eye movement. Anat Rec 263:215-236, 2001. (C) 2001 Wiley-Liss, Inc.