Dynamic organization of primary motor cortex output to target muscles in adult rats II. Rapid reorganization following motor nerve lesions

1990 ◽  
Vol 79 (3) ◽  
Author(s):  
J.P. Donoghue ◽  
S. Suner ◽  
J.N. Sanes
Keyword(s):  
Motor Cortex ◽  
Primary Motor Cortex ◽  
Motor Nerve ◽  
Adult Rats ◽  
Nerve Lesions ◽  
Dynamic Organization

Biphasic reorganization of somatotopy in the primary motor cortex follows facial nerve lesions in adult rats

1996 ◽  
Vol 203 (3) ◽  
pp. 179-182 ◽  
Author(s):  
Jozsef Toldia ◽  
Rainer Laskawi ◽  
Michael Landgrebe ◽  
Joachim R. Wolff
Keyword(s):  
Motor Cortex ◽  
Facial Nerve ◽  
Primary Motor Cortex ◽  
Adult Rats ◽  
Nerve Lesions

scholarly journals Trains of Epidural DC Stimulation of the Cerebellum Tune Corticomotor Excitability

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Nordeyn Oulad Ben Taib ◽  
Mario Manto
Keyword(s):  
Spinal Cord ◽  
Motor Cortex ◽  
Spatial Representation ◽  
Primary Motor Cortex ◽  
Anterior Horn ◽  
Adult Rats ◽  
Afferent Inhibition ◽  
Antagonist Muscles ◽  
Conditioned Motor ◽  
Stimulation Of

We assessed the effects of anodal/cathodal direct current stimulation (DCS) applied epidurally over the cerebellum. We studied the excitability of both the motor cortex and the anterior horn of the spinal cord in adult rats under continuous anesthesia. We also investigated the effects on the spatial representation of a couple of agonist/antagonist muscles on primary motor cortex. Moreover, we evaluated the effects on the afferent inhibition in a paradigm of conditioned corticomotor responses. Anodal DCS of the cerebellum (1) decreased the excitability of the motor cortex, (2) reduced the excitability ofFwaves, as shown by the decrease of both meanF/meanMratios and persistence ofFwaves, (3) exerted a “smoothing effect” on corticomotor maps, reshaping the representation of muscles on the motor cortex, and (4) enhanced the afferent inhibition of conditioned motor evoked responses. Cathodal DCS of the cerebellum exerted partially reverse effects. DCS of the cerebellum modulates the excitability of both motor cortex and spinal cord at the level of the anterior horn. This is the first demonstration that cerebellar DCS tunes the shape of corticomotor maps. Our findings provide a novel mechanism by which DCS of the cerebellum exerts a remote neuromodulatory effect upon motor cortex.

Rapid astroglial reactions in the motor cortex of adult rats following peripheral facial nerve lesions

1997 ◽  
Vol 254 (2) ◽  
pp. 81-85 ◽  
Author(s):  
R. Laskawi ◽  
A. Roblmann ◽  
M. Landgrebe ◽  
J. R. Wolff
Keyword(s):  
Motor Cortex ◽  
Facial Nerve ◽  
Adult Rats ◽  
Nerve Lesions

Location of Primary Motor Cortex Function in Cerebral Migration Disorder

1998 ◽  
Vol 38 (5) ◽  
pp. 769
Author(s):  
Ho Kyu Lee ◽  
Jin Suh Kim ◽  
Youn Mee Hwang ◽  
Myung Joon Lee ◽  
Soo Mee Lim ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Primary Motor Cortex ◽  
Migration Disorder
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