Understanding how the brain uses sensory information to guide reaching and grasping movements

触及、抓握和操纵物体是我们日常生活中至关重要的方面，这些都是毫不费力地完成的，以至于它们往往被视为理所当然。然而，我们知道这些功能需要相对较长的时间才能成熟（想象一下婴儿学习如何获得物体），并且它们可能会受到涉及后顶叶皮层的大脑损伤的损害。我们还知道这个区域有多个细分，但这些细分是如何相互作用的，让感官信息引导手臂和手部肌肉，这是未知的。从细胞相互作用的角度发现这一过程是如何发生的，这对创造假肢和自主机器人等新技术具有深远的影响，并带来健康益处。

Reaching, grasping and manipulating objects are crucial aspects of our daily lives, which are performed so effortlessly that they tend to be taken for granted. We know however that these functions take a relatively long time to mature (think of a baby learning how to get an object), and that they can be impaired by brain lesions involving a region called the posterior parietal cortex. We also know that this region has multiple subdivisions, but how exactly these interact in allowing the sensory information to guide arm and hand muscles is unknown. Discovering how this happens in terms of cellular interaction can have profound implications for the creation of new technologies such as artificial limbs and autonomous robots, and result in health benefits.