scholarly journals The measurement of single motor-axon recurrent inhibitory post-synaptic potentials in the cat.

1987 ◽  
Vol 388 (1) ◽  
pp. 631-651 ◽  
Author(s):  
T M Hamm ◽  
S Sasaki ◽  
D G Stuart ◽  
U Windhorst ◽  
C S Yuan
Keyword(s):  
Motor Axon ◽  
Single Motor ◽  
Synaptic Potentials

Single motor axon conduction velocities of human upper and lower limb motor units. A study with transcranial electrical stimulation

2002 ◽  
Vol 113 (2) ◽  
pp. 284-291 ◽  
Author(s):  
Francesca Dalpozzo ◽  
Pascale Gérard ◽  
Victor De Pasqua ◽  
François Wang ◽  
Alain Maertens de Noordhout
Keyword(s):  
Electrical Stimulation ◽  
Lower Limb ◽  
Motor Units ◽  
Motor Axon ◽  
Transcranial Electrical Stimulation ◽  
Single Motor ◽  
Conduction Velocities

Excitation and Inhibition of the Reflex Eye Withdrawal of The Crab Carcinus

1967 ◽  
Vol 46 (3) ◽  
pp. 475-485
Author(s):  
D. C. SANDEMAN
Keyword(s):  
Motor Neuron ◽  
Optic Tract ◽  
The Body ◽  
Motor Axon ◽  
Single Motor ◽  
Burst Length ◽  
The Brain ◽  
Cathodal Stimulation ◽  
Stimulation Of

1. Damage to the statocysts or section of the oesophageal connectives of Carcinus causes repeated ‘spontaneous’ eye withdrawals or ‘blinking’ on the damaged side. 2. When the eyes and brain are isolated from the body, repetitive blinking persists and concomitant bursts of large impulses appear in a single motor axon in the optic tract. The length of these bursts varies from 80 to 180 impulses and the interburst intervals from 5 to 60 sec. There is no obvious correlation between burst length and interburst interval. 3. The bursts are inhibited by stimulating the inside half of the ipsilateral oesophageal connective or initiated by stimulation of the oculomotor and tegumentary nerves. If stimulated with a continuous train of pulses these pathways also cause an increase or decrease in the interburst intervals. 4. The actively spiking portion of the eye-withdrawal motor neuron extends into the brain at least as far as the tegumentary/antennary neuropile. Here it is particularly sensitive to cathodal stimulation, yielding trains of spikes to maintained d.c. stimulation. This point is considered to be near the spike initiating locus for the bursts.

A Bifunctional Single Motor Axon System of a Crustacean Muscle

1951 ◽  
Vol 28 (1) ◽  
pp. 13-21
Author(s):  
C. A. G. WIERSMA
Keyword(s):  
Hermit Crab ◽  
Motor Axon ◽  
Anatomical Features ◽  
Single Motor ◽  
Crustacean Muscle ◽  
Stimulation Of

It is shown that the opener muscle of the hermit crab, Eupagurus bernhardus L., receives a single motor axon. Stimulation of this axon results, when appropriate stimuli are used, in two types of contractions comparable with the fast and slow contractions of doubly motor-innervated crustacean muscles. The theoretical implications of this finding are discussed and a hypothesis offered to explain the mechanism which makes the two contraction types possible. The physiological and anatomical features of the innervation of the four most distal muscles in the legs of Eupagurus are described.

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