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首页> 外文期刊>The European Journal of Neuroscience >Prefrontal and agranular cingulate projections to the dorsal premotor areas F2 and F7 in the macaque monkey.
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Prefrontal and agranular cingulate projections to the dorsal premotor areas F2 and F7 in the macaque monkey.

机译：猕猴背前运动区F2和F7的前额叶和颗粒扣带状投射。

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摘要

The superior sector of Brodmann area 6 (dorsal premotor cortex, PMd) of the macaque monkey consists of a rostral and a caudal architectonic area referred to as F7 and F2, respectively. The aim of this study was to define the origin of prefrontal and agranular cingulate afferents to F7 and F2, in the light of functional and hodological evidence showing that these areas do not appear to be functionally homogeneous. Different sectors of F7 and F2 were injected with neural tracers in seven monkeys and the retrograde labelling was qualitatively and quantitatively analysed. The dorsorostral part of F7 (supplementary eye field, F7-SEF) was found to be a target of strong afferents from the frontal eye field (FEF), from the dorsolateral prefrontal regions located dorsally (DLPFd) and ventrally (DLPFv) to the principal sulcus and from cingulate areas 24a, 24b and 24c. In contrast, the remaining part of F7 (F7-non SEF) is only a target of the strong afferents from DLPFd. Finally, the ventrorostral part of F2 (F2vr), but not the F2 sector located around the superior precentral dimple (F2d), receives a minor, but significant, input from DLPFd and a relatively strong input from the cingulate gyrus (areas 24a and 24b) and area 24d. Present data provide strong hodological support in favour of the idea that areas F7 and F2 are formed by two functionally distinct sectors.
机译：猕猴的Brodmann区域6的上半部（背运动前皮层，PMd）由分别称为F7和F2的鸟嘴和尾部建筑区域组成。这项研究的目的是根据功能和流变学证据表明这些区域似乎在功能上并不均一，从而确定F7和F2的前额叶和粒状扣带回的起源。在7只猴子中，分别向F7和F2的不同区域注射了神经示踪剂，并进行了定性和定量分析逆行标记。发现F7的背侧部分（辅助眼场，F7-SEF）是额叶视野（FEF），背侧（DLPFd）和腹侧（DLPFv）的背侧前额区的强力传入目标沟和扣带状区域24a，24b和24c。相比之下，F7的其余部分（非SEF的F7）仅是DLPFd强传入的目标。最后，F2的腹侧部分（F2vr），而不是位于上中央前酒窝（F2d）周围的F2区域，从DLPFd接收到少量但重要的输入，并从扣带回中获得相对较强的输入（区域24a和24b ）和区域24d。当前数据提供了强有力的后勤支持，支持了F7和F2区域由两个功能不同的部门组成的想法。

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