Involvement of spinal interneurons in a control of primate grasping.

Grasping is a highly developed movement in human and other primates. Neural control of grasping has been exclusively studied in cerebral cortex and cerebellum, but never examined in spinal cord. We are examining how cervical spinal neurons of non-human primate are involved in a control of grasping. 
For this aim, we are utilizing and combining several electrophysiological and analytical methods; 1) spinal neural recording (single unit, LFP, multi-channel recording) in awake behaving monkeys, 2) chronic EMG recording, 3) signal analyses for detecting correlational linkage (spike-triggered averaging, coherence, wavelet-coherence, directed-coherence analysis), 4) extraction of muscle synergies. Using with these methods, we explore the characteristic function of spinal interneurons in control of primate grasping.

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