PMID: 9193158Jan 1, 1997Paper

The control of forelimb movements by intermediate cerebellum

Progress in Brain Research
C F EkerotH Jörntell

Abstract

In a series of studies, the functional organization of cerebellar regions contributing to the control of forelimb movements via the rubro- and corticospinal tracts has been characterized in the cat. The system consists of the cerebellar cortical C1, C3 and Y zones and their efferent intracerebellar nucleus, the interpositus anterior. Based on analyses of cutaneous and muscle afferent climbing fibre input, of corticonuclear connections and of limb movements controlled, a modular organization of this cerebellar control system is proposed. Each module consists of a number of cortical microzones, defined by their homogeneous climbing fibre input, and a group of neurones in nucleus interpositus anterior on which these microzones converge. The input to climbing fibres is multi-modal and originates from cutaneous A beta (tactile), A delta and C (nociceptive) fibres and from muscle afferents. The cutaneous receptive fields have spatial characteristics suggestive of a relation to elemental movements. For most climbing fibres, the spatial relationship between cutaneous and muscle afferent input is such that the muscle afferent input originates from muscles that, if activated, would tend to move the cutaneous receptive field of the climbi...Continue Reading

Citations

Sep 12, 2000·The Journal of Comparative Neurology·T J Ruigrok, J Voogd
Apr 14, 1999·The Journal of Physiology·C F Ekerot
Dec 10, 2013·Neural Plasticity·Guy CheronJavier Márquez-Ruiz
Feb 11, 2010·The Cerebellum·Mario Manto, Nordeyn Oulad Ben Taib
Nov 13, 2020·Brain Structure & Function·Gianpaolo Antonio BasileAlberto Cacciola
Jul 12, 2020·Neuroscience·Ayesha R ThanawallaEiman Azim
Jun 9, 2019·Neuron·Matthew I Becker, Abigail L Person

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