+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Evoked cerebral cortical activity from small peripheral nerve fibers in cat



Evoked cerebral cortical activity from small peripheral nerve fibers in cat



Electroencephalography and Clinical Neurophysiology 33(2): 207-214



In 19 cats anesthetized with 75% nitrous oxide/25% oxygen, two types of cortical activity have been demonstrated to respond to repetitive stimulation of small myelinated and unmyelinated peripheral nerve fibers. One is a rhythmic 3–4 c/sec high voltage activity seen most prominently in the cortical association areas. The other is a 20–40 c/sec small amplitude train of brief discharges appearing most prominently in the primary somatosensory area. This latter response is related to the activity of smaller peripheral nerve fibers. The two responses differ in that the 20–40 c/sec activity is not evoked by epinephrine, appears shortly after the stimulus, and has a shorter duration of activity than the higher voltage 3–4 c/sec theta activity. The slow rhythm is evoked by epinephrine, is delayed in onset and outlasts an evoking stimulus train. Neither response is evoked by optic stimulation or by stimulation of the larger peripheral afferent fibers. Both varieties of cortical activity are suppressed by intravenous phenobarbital.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 026595393

Download citation: RISBibTeXText

PMID: 4114156

DOI: 10.1016/0013-4694(72)90047-8


Related references

Electron microscopy of nerve fibers V. On the fine structure of the small myelinated nerve fibers in the peripheral nerve. Okajimas Folia Anatomica Japonica 38: 387-409, 1962

Peripheral nerve stimulation for pain relief: effect on cutaneous peripheral nerve evoked activity. Surgical Forum 26: 474-476, 1975

The effect of electro-acupuncture of "neiguan" acupoint on cortical potential evoked by stimulating C-fibers of splanchnic nerve. Zhen Ci Yan Jiu 14(4): 410-413, 1989

The intraneuronal fibers of the I and II cortical zones of the splanchnic nerve in cat cerebral cortex. Byul Eksptl Biol I Med 55(3): 114-117, 1963

Studies of the morphology of peripheral nerve fibers. I. The bilateral symmetrically arranged strengthening ridges of the outer neurillemma (sheath of Schwann) and of the inner neurillemma (=axilemma) of the peripheral medullated nerve fibers. Zeitschrift für Zellforschung und Mikroskopische Anatomie 43(4): 391-403, 1955

Abnormal skin biopsy for intraepidermal nerve fibers: When "Decreased small nerve fibers" is not "Small fiber neuropathy". Microsurgery 35(7): 505-506, 2016

Assessment of peripheral nerve crush injury with cortical somatosensory evoked potentials in the cat. Experimental Neurology 103(2): 146-153, 1989

Cortical and peripheral responses evoked by stimulation of the nerve in pathology of the posterior funiculi. Revue Neurologique 115(1): 99-112, 1966

Cerebral cortical neurons with activity linked to central neurogenic spontaneous and evoked elevations in cerebral blood flow. Neuroscience Letters. 209(2): 101-104, 1996

Recovery Functions Of Somatosensory Peripheral Nerve And Cerebral Evoked Responses In Man. Electroencephalography and Clinical Neurophysiology 17: 126-135, 1964

Electrophysiological studies of nerve and reflex activity in normal man. I. Identification of certain reflexes in the electromyogram and the conduction velocity of peripheral nerve fibers. Bulletin of the Johns Hopkins Hospital 86(5): 265-290, 1950

Nitric oxide synthase-immunoreactive nerve fibers in dog cerebral and peripheral arteries. Brain Research. 629(1): 67-72, 1993

Determination of peripheral sensory nerve conduction velocities in man from stimulus response delays of the cortical evoked potentials. Electroencephalography and Clinical Neurophysiology 30(5): 409-414, 1971

Biological conduit small gap sleeve bridging method for peripheral nerve injury: regeneration law of nerve fibers in the conduit. Neural Regeneration Research 10(1): 71-78, 2015

Discharges in small and large myelinated peripheral fibers evoked by formaldehyde injected in their cutaneous receptive fields. Society for Neuroscience Abstracts 14(1): 563, 1988