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NEURAL POPULATION DYNAMICS IN MOTOR CORTEX ARE DIFFERENT FOR REACH AND GRASP

By Aneesha K Suresh, James M Goodman, Elizaveta V Okorokova, Matthew T Kaufman, Nicholas G. Hatsopoulos, Sliman J. Bensmaia

Posted 11 Jun 2019
bioRxiv DOI: 10.1101/667196

Rotational dynamics are observed in neuronal population activity in primary motor cortex (M1) when monkeys make reaching movements. This population-level behavior is consistent with a role for M1 as an autonomous pattern generator that drives muscles to produce movement. Here, we show that M1 does not exhibit smooth dynamics during grasping movements, suggesting a more input-driven circuit.

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