scholarly journals An electrophysiological study of 5-hydroxytryptamine receptors of neurones in the molluscan nervous system

1966 ◽  
Vol 185 (3) ◽  
pp. 684-700 ◽  
Author(s):  
H. M. Gerschenfeld ◽  
E. Stefani
Keyword(s):  
Nervous System ◽  
Electrophysiological Study ◽  
Hydroxytryptamine Receptors

CLINICALAND ELECTROPHYSIOLOGICAL STUDY OF THE PERIPHERAL NERVOUS SYSTEM IN THE ELDERLY PEOPLE IN DARBHANGA

2021 ◽  
pp. 19-21
Author(s):  
Nutan Bala ◽  
Priyanka Priyanka ◽  
Sheela Kumari ◽  
Debarshi Jana
Keyword(s):  
Nervous System ◽  
Peripheral Nervous System ◽  
Linear Models ◽  
Electrophysiological Study ◽  
The Elderly ◽  
Elderly Subjects ◽  
Neurophysiological Studies ◽  
Age Dependent ◽  
Young Subjects ◽  
Effect Of Age

The effect of age on the peripheral nervous system was investigated by clinical examination and neurophysiological studies in 59 subjects aged 60- 103 years and 23 young subjects. Afull laboratory screen for factors which, though clinically silent, may constitute risk factors (RFs) for peripheral neuropathy was also performed in the elderly subjects. Our ndings show that the presence of RFs affects exceptionally the electrophysiological parameters in a statistically signicant way. The age-dependent changes in nerve conduction parameters were well predicted by non-linear models. The simultaneous electromyographical study demonstrates the re-innervation capacity of the motor system

P1-18-07. Longitudinal electrophysiological study of the peripheral nervous system in xeroderma pigmentosum group A

2019 ◽  
Vol 130 (10) ◽  
pp. e214
Author(s):  
Yukio Tsuji ◽  
Takehiro Ueda ◽  
Masahiro Nishiyama ◽  
Fumio Kanda ◽  
Chikako Nishigori ◽  
...  
Keyword(s):  
Nervous System ◽  
Peripheral Nervous System ◽  
Xeroderma Pigmentosum ◽  
Electrophysiological Study ◽  
Group A ◽  
Xeroderma Pigmentosum Group A

Long-term nervous system damage from radiation of the spinal cord: An electrophysiological study

1991 ◽  
Vol 238 (1) ◽  
pp. 9-15 ◽  
Author(s):  
G. Scisciolo ◽  
M. Bartelli ◽  
S. Magrini ◽  
G. P. Biti ◽  
L. Guidi ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Nervous System ◽  
Electrophysiological Study

An Electrophysiological Study of the Anatomical Relations of Two Giant Nerve Cells in Aplysia Depilans

1963 ◽  
Vol 40 (3) ◽  
pp. 469-486
Author(s):  
G. M. HUGHES
Keyword(s):  
Nervous System ◽  
Electrophysiological Study ◽  
Somatic Membrane ◽  
Mechanical Pressure ◽  
Direct Stimulation ◽  
Antidromic Stimulation ◽  
Large Spike ◽  
The Right ◽  
Pleural Ganglion ◽  
Stimulation Of

1. On either side of the nervous system in Aplysiathere is a giant cell (RGC and LGC) whose axon branches within the nervous system. The distribution of these branches has been traced in experiments involving stimulation and recording and the use of intracellular electrodes (in the soma) and extracellular electrodes (on nerves containing the axons). 2. On the right side the RGC sends an axon along the pleuro-visceral connective to the pleural-pedal ganglia where it divides and gives branches to the cerebro-pleural connective and each of the main nerves supplying the foot and parapodium. 3. Stimulation of any nerve containing a branch of this axon produces a large spike in the right connective and an antidromic potential in the soma. Transmission between the different branches is not always easy following antidromic stimulation but is always present in the orthodromic direction whether produced synaptically, by direct stimulation of the soma, or by mechanical pressure applied to the somatic membrane. 4. The LGC soma is in the left pleural ganglion near the origin of the left pleurovisceral connective. Similar techniques have shown that this cell sends branches to the corresponding nerves on the left side. 5. An hypothesis is suggested to account for the presence of the cell bodies of the RGC and LGC in two different ganglia, despite the similarities in branching of their axons. Possibly differences during torsion and detorsion in the fate of the ganglia in which these cells originate may account for their different locations in the adult. 6. The function of the RGC was investigated in whole-animal preparations. Although it tends to discharge when the animal makes spontaneous protective movements or is touched anywhere on its surface, stimulation of the cell directly through an intracellular electrode gives no overt movements of the animal.

Plasticity in somatic receptive fields after nerve injury

2018 ◽  
Author(s):  
Stephen R. Humble
Keyword(s):  
Spinal Cord ◽  
Nervous System ◽  
Dorsal Horn ◽  
Nerve Injury ◽  
Electrophysiological Study ◽  
Receptive Fields ◽  
Spinal Mechanism ◽  
Somatic Receptive Fields

Devor and Wall, in a pioneering electrophysiological study, examined the change in somatic receptive fields in the dorsal horn of the spinal cord after nerve injury. Rather than the anticipated loss of an area of electrophysiological perception, the system demonstrated ‘plasticity’ whereby novel receptive fields, remote to the corresponding area of damage, were evident. The authors postulated that this neuroplasticity occurred via a hitherto undefined spinal mechanism, which lead to an explosion of interest and research to elucidate the mechanisms of central plasticity. In this truly landmark paper, the idea of the nervous system being an inherently ‘hard-wired’ structure was made redundant and the concept of neuroplasticity was given robust form.

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