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

Aneesha K. Suresh; James M. Goodman; Elizaveta V. Okorokova; Matthew Tyler Kaufman; Nicholas G. Hatsopoulos; Sliman J. Bensmaı̈a

doi:10.7554/elife.58848

NeuroscienceeLifeNov 16, 2020

Peer-reviewed journal article

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

Aneesha K. Suresh iD, James M. Goodman iD, Elizaveta V. Okorokova iD, Matthew Tyler Kaufman iD, Nicholas G. Hatsopoulos iD, Sliman J. Bensmaı̈a iD

Abstract

AO_SCPLOWBSTRACTC_SCPLOWRotational 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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