Research Reveals 3D Spatial Navigation Map of Hand in the Brain to Aid Brain-Machine Interface Development

The research conducted by the Brain Mapping and Brain-like Intelligence Laboratory at the Institute of Automation, Chinese Academy of Sciences, reveals the existence of explicit three-dimensional spatial representations of hand positions in the primary motor cortex and the dorsal premotor cortex of macaques. The study found that the brain not only encodes movement patterns but also maintains a three-dimensional hand position map similar to GPS. With just a few dozen neurons encoding positions, it is possible to accurately decode three-dimensional hand trajectories, providing a solid neuroscientific basis for the next generation of brain-machine interfaces. The research findings have been published in the Journal of Neuroscience.

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