EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Electrophysiological evidence for an excitatory projection from ventromedial forebrain structures on to raphe spinal and reticulo spinal neurons in the rat






Brain Research 380(1): 162-166

Electrophysiological evidence for an excitatory projection from ventromedial forebrain structures on to raphe spinal and reticulo spinal neurons in the rat

Spinally projecting neurones in nucleus raphe magnus (NRM) and the adjacent reticular formation of the medulla were identified by their antidromic responses to electrical stimulation in the lumbosacral spinal cord. Identified raphe-spinal and reticulo-spinal neurones were then tested for the effects of electrical stimulation at sites in the ventromedial forebrain, including the anterior hypothalamus and preoptic area (AH/POA). The results of these experiments have demonstrated that a considerable proportion of raphe- and reticulo-spinal neurones receive an excitatory input from the AH/POA. It is suggested that activity in this descending pathway might contribute to the inhibitory effects of AH/POA stimulation on the nociceptor-evoked activities of spinal dorsal horn neurones.


Accession: 005349631



Related references

Electrophysiological evidence for an excitatory projection from ventromedial forebrain structures on to raphe- and reticulo-spinal neurones in the rat. Brain Research 380(1): 162-166, 1986

Effects of ventromedial forebrain stimulation on the activities of raphe and reticulo spinal neurons in the rat. Journal of Physiology (Cambridge) 365: 28P, 1985

Raphe dorsalis-spinal cord cografts in oculo: electrophysiological evidence for an excitatory serotonergic innervation of transplanted spinal neurons. Brain Research Bulletin 17(6): 801-808, 1986

Relationship of gaba neurons to reticulo spinal neurons and raphe spinal neurons in the medullary reticular formation. Society for Neuroscience Abstracts 16(1): 851, 1990

Primate raphe spinal neurons and reticulo spinal neurons effects of stimulation in peri aqueductal gray or caudal part of the ventral posterior lateral thalamic nucleus. Journal of Neurophysiology (Bethesda) 51(3): 467-480, 1984

Effects of reticulo spinal and raphe spinal projections on the responses of spino thalamic neurons to mechanical stimuli. Physiologist 20(4): 62, 1977

Organization of the crossed tecto-reticulo-spinal projection in rat--II. Electrophysiological evidence for separate output channels to the periabducens area and caudal medulla. Neuroscience 37(3): 585-601, 1990

Light microscopic and electron microscopic analysis of raphe spinal and reticulo spinal neurons in the rat brainstem. Neuroscience Letters (SUPPL 21): S8, 1985

An excitatory amino acid projection from ventromedial hypothalamus to periaqueductal gray in the rat autoradiographic and electrophysiological evidence. Neuroscience Letters 85(2): 205-211, 1988

Electrophysiological evidence for an excitatory amino acid projection from the ventromedial hypothalamus to the medial zona incerta. Synapse 5(1): 77-79, 1990