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- W2936044635 abstract "The primary motor cortex (M1) is an important structure of the motor system that contributes tomany aspects of movement. Firing patterns of M1 neurons can be surprisingly complex, and thereis substantial interest in understanding these patterns and their relation to behavior. Here, wecharacterize the temporal structure of M1 activity during reaching in several ways. First, we showthat single neurons encode movement information in a series of discrete segments. Information isstably encoded during each brief segment, and the firing patterns of most neurons transitionbetween segments at similar times during movement. This pattern may therefore reflect transitionsbetween different neural “states.” Next, we establish that the sequence of states observed duringbehavior is related to a sequence of distinct drivers, including visuospatial information and visualfeedback from a movement. If no feedback is provided, neurons may produce a truncated responsesequence. Last, we link the temporal structure of firing patterns to the structure of reaches anddemonstrate that the classical two-component model of reaching is reflected in M1 activity. Ourfindings may help establish a useful framework for interpreting seemingly complex neural activityduring behavior." @default.
- W2936044635 created "2019-04-25" @default.
- W2936044635 creator A5073408290 @default.
- W2936044635 date "2019-03-05" @default.
- W2936044635 modified "2023-09-23" @default.
- W2936044635 title "Neural State Changes in Primate Motor Cortex During Arm Movements with Distinct Control Requirements" @default.
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