Interactions between areas of the cortical grasping network.

Interactions between areas of the cortical grasping network.
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DOI:
10.1016/j.conb.2011.05.021
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发表时间:
2011-08
影响因子:
5.7
通讯作者:
Lemon RN
Lemon RN
中科院分区:
医学2区
文献类型:
--
作者:
Davare M;Kraskov A;Rothwell JC;Lemon RN

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前顶内区(AIP)对于处理与抓握相关的物体属性至关重要。CANAIP接收来自背侧和腹侧流的关于可抓握物体的视觉信息。腹侧前运动区(PMv)和初级运动皮层(M1)之间的相互作用使运动指令具有抓握特异性。PMV和M1之间的相互作用中起着重要的作用。熟练抓握是一种感觉运动过程,需要大脑从环境中提取感觉线索来形成运动命令。虽然大量的文献集中在哪些大脑区域整合视觉对象的属性或控制运动输出,但仍不清楚抓握相关信息如何从一个区域转移到另一个区域。理解大脑区域之间的相互作用对于视觉转换的研究至关重要。最近,人类和非人类灵长类动物的新进展表明,在不同的任务背景下研究皮质-皮质相互作用是可能的。这为大脑区域如何整合到一个动态网络中以控制抓握动作提供了新的线索。
► The anterior intraparietal area (AIP) is crucial for the processing of grasp-related object properties. ► AIP receives visual information about graspable objects from both the dorsal and ventral stream. ► Reciprocal interactions between the ventral premotor (PMv) and primary motor cortex (M1) allow the motor command to be grasp-specific. ► AIP plays a causal role in influencing interactions between PMv and M1. Skilled grasp is a sensorimotor process requiring the brain to extract sensory cues from the environment to shape a motor command. Although a large body of literature has focused on which brain areas either integrate the visual object's properties or control the motor output, it is still unclear how grasp-related information is transferred from one area to another. Understanding interactions between brain areas is crucial for the study of visuomotor transformations. Recently, new advances in both human and non-human primates have shown it is possible to study cortico-cortical interactions during different task contexts. This sheds new light on how brain areas are integrated in a dynamic network for controlling grasping actions.
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