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Motor Cortex Can Directly Drive the Globus Pallidus Neurons in a Projection Neuron Type-dependent Manner in the Rat

Overview
Journal Elife
Specialty Biology
Date 2019 Nov 13
PMID 31711567
Citations 27
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Abstract

The basal ganglia are critical for the control of motor behaviors and for reinforcement learning. Here, we demonstrate in rats that primary and secondary motor areas (M1 and M2) make functional synaptic connections in the globus pallidus (GP), not usually thought of as an input site of the basal ganglia. Morphological observation revealed that the density of axonal boutons from motor cortices in the GP was 47% and 78% of that in the subthalamic nucleus (STN) from M1 and M2, respectively. Cortical excitation of GP neurons was comparable to that of STN neurons in slice preparations. FoxP2-expressing arkypallidal neurons were preferentially innervated by the motor cortex. The connection probability of cortico-pallidal innervation was higher for M2 than M1. These results suggest that cortico-pallidal innervation is an additional excitatory input to the basal ganglia, and that it can affect behaviors via the cortex-basal ganglia-thalamus motor loop.

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References
1.
Arkadir D, Morris G, Vaadia E, Bergman H . Independent coding of movement direction and reward prediction by single pallidal neurons. J Neurosci. 2004; 24(45):10047-56. PMC: 6730185. DOI: 10.1523/JNEUROSCI.2583-04.2004. View

2.
Bevan M, Magill P, Hallworth N, Bolam J, Wilson C . Regulation of the timing and pattern of action potential generation in rat subthalamic neurons in vitro by GABA-A IPSPs. J Neurophysiol. 2002; 87(3):1348-62. DOI: 10.1152/jn.00582.2001. View

3.
DeLong M . Primate models of movement disorders of basal ganglia origin. Trends Neurosci. 1990; 13(7):281-5. DOI: 10.1016/0166-2236(90)90110-v. View

4.
Ueta Y, Otsuka T, Morishima M, Ushimaru M, Kawaguchi Y . Multiple layer 5 pyramidal cell subtypes relay cortical feedback from secondary to primary motor areas in rats. Cereb Cortex. 2013; 24(9):2362-76. DOI: 10.1093/cercor/bht088. View

5.
Mink J, Thach W . Basal ganglia motor control. I. Nonexclusive relation of pallidal discharge to five movement modes. J Neurophysiol. 1991; 65(2):273-300. DOI: 10.1152/jn.1991.65.2.273. View