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The Head-Neck Sensory Motor System$
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Alain Berthoz, Werner Graf, and P. P. Vidal

Print publication date: 1992

Print ISBN-13: 9780195068207

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780195068207.001.0001

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Contribution of Reticulospinal Neurons to the Dynamic Control of Head Movements: Presumed Neck Bursters

Contribution of Reticulospinal Neurons to the Dynamic Control of Head Movements: Presumed Neck Bursters

Chapter:
(p.318) Chapter 50 Contribution of Reticulospinal Neurons to the Dynamic Control of Head Movements: Presumed Neck Bursters
Source:
The Head-Neck Sensory Motor System
Author(s):

Alexey Grantyn

Alain Berthoz

Olivier Hardy

Antoine Gourdon

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195068207.003.0050

This chapter only deals with the immediate premotor neuronal organization of this coordination at the level of the brain stem. It is known that the activity of the superior colliculus contributes to the initial saccade and the head movement. The afferent collicular neurons of the crossed tectoreticulospinal pathways activate a network of neurons in the brain stem that produces the premotor neuronal signals. It is well established that the signals that are carried by descending tectoreticulospinal neurons (TRSNs) are mainly phasic bursts. It is discussed that their firing rate is related to either eye velocity or dynamic motor error signals.

Keywords:   head movement, brain stem, superior colliculus, phasic bursts, tectoreticulospinal neurons

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