The Olivocerebellar system in motor control

Cover of: The Olivocerebellar system in motor control |

Published by Springer-Verlag in Berlin, New York .

Written in English

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Subjects:

  • Motor ability -- Congresses.,
  • Olivary nucleus -- Congresses.,
  • Cerebellum -- Congresses.,
  • Cerebellum -- congresses.,
  • Motor Activity -- congresses.,
  • Olivary Nucleus -- congresses.

Edition Notes

Book details

StatementPiergiorgio Strata, ed.
SeriesExperimental brain research series ;, 17
ContributionsStrata, Piergiorgio, 1935-, International Brain Research Organization. Congress
Classifications
LC ClassificationsQP301 .O39 1989
The Physical Object
Paginationxiv, 466 p. :
Number of Pages466
ID Numbers
Open LibraryOL2188059M
ISBN 100387500642
LC Control Number89006238

Download The Olivocerebellar system in motor control

Recently, the role of the olivocerebellar projection in cerebellar operation has drawn the attention of many scientists who are trying to understand how the cerebellum controls movements. The papers published in this book were presented at a meeting held in Turin on Augustas a satellite symposium of the 2nd World IBRO Congress in Budapest.

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Recently, the role of the olivocerebellar projection in cerebellar operation has drawn the attention of many scientists who are trying to understand how the cerebellum controls movements.

The papers published in this book were presented at a meeting held in Turin on Augustas a satellite symposium of the 2nd World IBRO Congress in Budapest. It was planned in collaboration with. olivocerebellar system can contribute to both the motor learning and motor control functions of the Corresponding Author: Eric J Lang, Department of Neuroscience and Physiology, New York University School of Medicine, 1st Ave, New York, USA, @, Phone: () Compliance with Ethical Standards: Research involving Animals.

An analogous mechanism has been postulated in motor control (Llinas, ; Welsh et al., Book. Jan ; AM J PSYCHOL The Olivocerebellar system in motor control book results indicate that the olivocerebellar system is organized.

Y1 - /2/1. N2 - For many decades, the predominant view in the cerebellar field has been that the olivocerebellar system’s primary function is to induce plasticity in the cerebellar cortex, specifically, at the parallel fiber-Purkinje cell synapse.

However, it has also long been proposed that the olivocerebellar system participates directly in motor control by helping to shape ongoing motor commands being. However, it has also long been proposed that the olivocerebellar system participates directly in motor control by helping to shape ongoing motor commands being issued by the cerebellum.

Evidence consistent with both hypotheses exists; however, they are. Cerebellar output is necessary for the ideal implementation of many nervous system functions, particularly motor coordination.

A key step toward understanding the generation of this output is characterizing the factors that shape the activity of the cerebellar nuclei (CN). There are four major sources of synaptic input that modulate CN activity; collaterals of climbing and mossy fibers are two.

system to function as a generator of temporal patterns. These patterns could be used for timing of motor, sen-sory and cognitive tasks. The proposed mechanism for the generation of these patterns is based on subthres-hold oscillations in a network of inferior olivary neurons and their control by the cerebellar cortex and nuclei.

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The olivocerebellar pathway originates in the inferior The regions of the cerebellum that are related to motor control receive a wide variety of sensory inputs and generate motor-related outputs according to internal rules of computation.

Schouenborg J, Weng H-R () Sensorimotor transformation in a spinal motor system. Exp Brain Res. However, it has also long been proposed that the olivocerebellar system participates directly in motor control by helping to shape ongoing motor commands being issued [Show full abstract] by.

interconnected sensory-motor control system operating in closed-loop during behavior. This challenge has been taken by the Ros’ and D’Angelo’s laboratories (Garrido et al.), who elaborated on a robotic controller, embedding a computational model of the whole olivo-cerebellar system.

The model was. The olivocerebellar system is pulsatile in the temporal domain and self-organizing in the spa- sectioning of the mental, supralabial and external nasal branches of the trigeminal nerve.

Welsh JP, Lang EJ et al () Dynamic organization of motor control within the olivocerebellar system. Nature ()– PubMed CrossRef Google Scholar Welsh JP, Han VZ et al () Bidirectional plasticity in the primate inferior olive induced by.

Involvement of cerebellar cortex and nuclei in the genesis and control of unconditioned and conditioned eyelid motor responses. Pontocerebellar connections. Salient anatomic features of the cortico-ponto-cerebellar pathway. Mossy-fibre sensory input to the cerebellum.

Plasticity in olivocerebellar system. The role of the olivocerebellar system in movement control: an in vivo electrophysiological approach Over the past decades it has been hypothesized that the inferior olive is involved in the process of motor timing by non-continuous control of muscle ensembles via regulation of electrotonic coupling of its neurons.

how the dynamic. J Physiol () pp – Olivocerebellar modulation of motor cortex ability to generate vibrissal movements in rat Eric J. Lang1, Izumi Sugihara2 and Rodolfo Llinas´ 1 1Department of Physiology and Neuroscience, New York University, School of Medicine, First Avenue, New York, NYUSA 2Department of Systems Neurophysiology, Tokyo Medical and Dental University.

The aim of our research is to investigate motor control on the neuronal level. We are particularly interested in questions of neuronal coding, temporal aspects of neuronal dynamics, and mechanisms that control spike timing and synaptic plasticity.

In order to elucidate neuronal processing of the olivocerebellar system during motor tasks, we. olivo-cerebellar system in motor coordination.

Specifically, that any Purkinje cell will,on average,only fire a single complex spike during a typical movement puts severe restrictions on the ability of the olivo-cerebellar system to code motor signals in terms of individual cell firing rates.

Highlights Essential tremor emerges from a number of cortical and subcortical motor centres, that is an oscillating network in which the cerebellum and the inferior olive are key structures.

Each of the network components may act as an oscillator on its own and its contribution changes dynamically. Paradoxically the same network governs voluntary movements and pathological tremor but there is.

Dynamic organization of motor control within the olivocerebellar system. E., Suglhara, I. et al. Dynamic organization of motor control within the olivocerebellar system Books and Culture. It is suggested that one role of the olivocerebellar system is to exert a powerful tonic inhibitory action on the Purkinje cells and consequently to exert a significant control on the excitability of the subcerebellar centres.

The Roles of the Olivocerebellar Pathway in Motor Learning and Motor Control. Chapter 4 - Cognitive and behavioral manifestations of cerebellar strokes: their relation to motor control and functional topography in the cerebellum from Section 1.

However, it is increasingly becoming clear that the olivo-cerebellar system is involved in the control of more than simple motor behaviors. The elegant and almost geometric organization of the olivocerebellar network lends itself to performing these complex operations.

In this review, the salient anatomical, physiological, and clinical features of this system are discussed. Llinas suggested the olivocerebellar system as a possible location for an internal representation of time (Welsh et al. However, Keating and Thach that the words of Block in the introduction to his book are still valid today; “no simple and suggest that the ability of the motor control system to employ representation of time.

Altogether, the book is pluriform and unique in that it is multidisciplinary, in that it promotes different views on cerebellar function, and that it is being published on the verge of different era's dominated by different generations of cerebellar scientists.

The Olivocerebellar system in motor control (Book) 11 editions published. The olivo-cerebellar network plays a key role in the organization of vertebrate motor control. The oscillatory properties of inferior olive (IO) neurons have been shown to provide timing signals for motor coordination in which spatio-temporal coherent oscillatory neuronal clusters control movement dynamics.

Based on the neuronal connectivity and electrophysiology of the olivo-cerebellar network we have developed a general-purpose control approach. Differential olivo-cerebellar cortical control of rebound activity in the cerebellar nuclei Freek E.

Hoebeeka,1, Laurens Witterb,1, Tom J. Ruigroka,1, and Chris I. De Zeeuwa,b,2 aDepartment of Neuroscience, Erasmus Medical Center, CA, Rotterdam, The Netherlands; and bNetherlands Institute for Neuroscience, Royal Academy for Arts and Sciences, BA, Amsterdam, The.

Role of olivocerebellar system in timing without awareness Xiang Wua, James Ashea,b,c, and Khalaf O. Busharaa,c,1 Departments of aNeurology and bNeuroscience, University of Minnesota, Minneapolis, MN ; and cNeurology Service, Minneapolis Veterans Affairs Medical Center, Minneapolis, MN Edited* by Rodolfo R.

Llinas, New York University Medical Center, New York, NY, and. This book has been written for a course of study that will introduce the reader to a broad range of motor types and control systems. It provides an overview of electric motor operation, selection, installation, control and maintenance.

Every effort has been made in this second edition to present the most up-to-date information which reflects the current needs of the industry. The Field Orientated Control (FOC) [1][3] consists of controlling the stator currents represented by a vector.

This control is based on projections which transform a three-phase time and speed dependent system into a two co-ordinate (d and q co-ordinates) time invariant system. These projections lead to a structure similar to that of a DC. For all your auto repair manuals and labor time guide needs, purchase MOTOR’s expansive collection exclusively through Matco’s nearly 2, distributors.

The olivo-cerebellar system has been implicated in temporal coordination of task components. Here, we propose a novel model that enables the olivo-cerebellar system to function as a generator of temporal patterns.

These patterns could be used for timing of motor, sensory and cognitive tasks. The proposed mechanism for the generation of these patterns is based on subthreshold. Therefore, in both situations differential control of A- vs C-fiber-evoked activity could preserve the detailed information of changes in the external environment that can drive motivational behaviors and accurately direct motor activity (A-fibers), whilst depressing those components of the nociceptive message (C-fibers) that are less useful in.

function of the olivocerebellar system is still a matter of fervent debate 1. While some older hypotheses such as the comparator hypothesis still receive atten-tion2, the two major propositions in this field emphasize the role of the inferior olive in learning and timing of motor.

The Nervous System section comprises the following eight chapters: Introduction to cells and systems Generation and conduction of action potentials Synaptic transmission The somatosensory system The special senses Organization of motor function Higher functions of the nervous system The autonomic nervous system and its central control.

The present results show that in the rat, crus 2 also receives input from the face region of the motor cortex, suggesting a close correspondence between somatosensory and motor cortical inputs to this part of the olivocerebellar system, as has been demonstrated for the olivocerebellar projections to the anterior lobe of the cat cerebellum.

The olivocerebellar tract, also known as olivocerebellar fibers, are neural fibers which originate at the olivary nucleus and pass out through the hilum and decussate with those from the opposite olive in the raphe nucleus, then as internal arcuate fibers they pass partly through and partly around the opposite olive and enter the inferior peduncle to be distributed to the cerebellar hemisphere.

Finally the pattern of synchrony during motor cortical stimulation was examined. It was found that the patterns of synchrony for motor-cortex-evoked complex spike activity were similar to those of spontaneous activity, indicating an important role for electrotonic coupling in determining the response of the olivocerebellar system to afferent input.

In medicinal leeches, heartbeat is a continuous, automatic function. Rhythmic constrictions of two muscular lateral vessels (the hearts) move blood through the closed circulatory system.

The hearts are coordinated so that one beats in a rear-to-front progression (peristaltically), whereas the other one beats nearly synchronously along its length. The same coordination modes as in the hearts.Motor control center (MCC) Since it is impossible for a technician to be in two places at once, it is often necessary to perform diagnostic checks on a malfunctioning electric motor from the MCC where the technician has access to all the control circuitry.

One such diagnostic check is line current, to detect the presence of an open motor.Climbing fibers are the name given to a series of neuronal projections from the inferior olivary nucleus located in the medulla oblongata. These axons pass through the pons and enter the cerebellum via the inferior cerebellar peduncle where they form synapses with the deep cerebellar nuclei and Purkinje climbing fiber will form synapses with Purkinje cells.

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