A revised computational neuroanatomy for motor control
File(s)Haar & Donchin - JoCN.pdf (661.79 KB)
Accepted version
Author(s)
Haar, Shlomi
Donchin, Opher
Type
Journal Article
Abstract
We discuss a new framework for understanding the structure of motor control. Our approach integrates existing models of motor control with the reality of hierarchical cortical processing and the parallel segregated loops that characterize cortical-subcortical connections. We also incorporate the recent claim that cortex functions via predictive representation and optimal information utilization. Our framework assumes each cortical area engaged in motor control generates a predictive model of a different aspect of motor behavior. In maintaining these predictive models, each area interacts with a different part of the cerebellum and basal ganglia. These subcortical areas are thus engaged in domain appropriate system identification and optimization. This refocuses the question of division of function among different cortical areas. What are the different aspects of motor behavior that are predictively modelled? We suggest that one fundamental division is between modelling of task and body while another is the model of state and action. Thus, we propose that the posterior parietal cortex, somatosensory cortex, premotor cortex, and motor cortex represent task state, body state, task action, and body action, respectively. In the second part of this review, we demonstrate how this division of labor can better account for many recent findings of movement encoding, especially in the premotor and posterior parietal cortices.
Date Issued
2020-10-01
Date Acceptance
2020-06-09
Citation
Journal of Cognitive Neuroscience, 2020, 32 (10), pp.1823-1836
ISSN
0898-929X
Publisher
Massachusetts Institute of Technology Press (MIT Press)
Start Page
1823
End Page
1836
Journal / Book Title
Journal of Cognitive Neuroscience
Volume
32
Issue
10
Copyright Statement
© 2020 Massachusetts Institute of Technology
Sponsor
The Royal Society
Grant Number
NF170650
Subjects
Experimental Psychology
1109 Neurosciences
1701 Psychology
1702 Cognitive Sciences
Publication Status
Published
Date Publish Online
2020-08-31