Convergence of visceral and somatic afferents on single neurones in the reticular formation of the lower brain stem in dogs

1996 ◽  
Vol 57 (3) ◽  
pp. 149-157 ◽  
Author(s):  
P. Langhorst ◽  
B.G. Schulz ◽  
H. Seller ◽  
H.P. Koepchen
Keyword(s):  
Brain Stem ◽  
Reticular Formation ◽  
Somatic Afferents ◽  
Single Neurones ◽  
Lower Brain Stem

Neurophysiological Studies of Harmaline-Induced Tremor in the Cat

1971 ◽  
Vol 49 (12) ◽  
pp. 1049-1058 ◽  
Author(s):  
Yves Lamarre ◽  
Lise-Andrée Mercier
Keyword(s):  
Spinal Cord ◽  
Brain Stem ◽  
Reticular Formation ◽  
Rhythmic Activity ◽  
Intracellular Recordings ◽  
Neurophysiological Studies ◽  
Central Origin ◽  
Antidromic Stimulation ◽  
Rhythmic Firing ◽  
Lower Brain Stem

Harmaline induces in the cat a generalized tremor, synchronous in all muscles, at a frequency of 8–12/s. This tremor has a central origin since motoneuronal rhythmic firing persists after paralysis or deafferentation. Intracellular recordings of lumbar motoneurons reveal spontaneous rhythmic EPSPs under harmaline; this rhythmic activity is not reset by antidromic stimulation. The cerebellum and the lower brain stem reticular formation appear to be primarily involved in the elaboration of supraspinal tremorogenic impulses, which are transmitted to segmental level by crossed and uncrossed reticulospinal fibers coursing on either side in the ventral half of the spinal cord.

Parabrachial nucleus neurons projecting to the lower brain stem and the spinal cord. A study in the cat by the Fink-Heimer and the horseradish peroxidase methods

1980 ◽  
Vol 70 (2) ◽  
pp. 403-413 ◽  
Author(s):  
Yoshiki Takeuchi ◽  
Masanori Uemura ◽  
Kojyuro Matsuda ◽  
Ryotaro Matsushima ◽  
Noboru Mizuno
Keyword(s):  
Spinal Cord ◽  
Horseradish Peroxidase ◽  
Brain Stem ◽  
Parabrachial Nucleus ◽  
Lower Brain Stem
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