The amplitude, time course and charge of unitary excitatory post‐synaptic potentials evoked in spinal motoneurone dendrites

1. Group Ia e.p.s.p.s were recorded from lumbosacral motoneurones in anaesthetized cats after almost complete section of the appropriate dorsal roots. The cable parameters of these same motoneurones were obtained from the voltage response to a brief intracellular current pulse, as described in Iansek & Redman (1973).

[1]  W. Rall.  Branching dendritic trees and motoneuron membrane resistivity. , 1959, Experimental neurology.

[2]  W. Rall.  Membrane potential transients and membrane time constant of motoneurons. , 1960, Experimental neurology.

[3]  M. Ito,et al.  Electrical behaviour of the motoneurone membrane during intracellularly applied current steps. , 1965, The Journal of physiology.

[4]  P. Sterling,et al.  Anatomical organization of the brachial spinal cord of the cat. II. The motoneuron plexus. , 1967, Brain research.

[5]  L. Illis.  The relative densities of monosynaptic pathways to the cell bodies and dendrites of the cat ventral horn. , 1967, Journal of the neurological sciences.

[6]  W Rall,et al.  Dendritic location of synapses and possible mechanisms for the monosynaptic EPSP in motoneurons. , 1967, Journal of neurophysiology.

[7]  W. Rall.  Distinguishing theoretical synaptic potentials computed for different soma-dendritic distributions of synaptic input. , 1967, Journal of neurophysiology.

[8]  P. Sterling,et al.  Anatomical organization of the brachial spinal cord of the cat. I. The distribution of dorsal root fibers. , 1967, Brain research.

[9]  R. MacGregor.  A model for responses to activation by axodendritic synapses. , 1968, Biophysical journal.

[10]  R E Burke,et al.  Group Ia synaptic input to fast and slow twitch motor units of cat triceps surae , 1968, The Journal of physiology.

[11]  C. Armstrong,et al.  Miniature End-plate Currents in Voltage-clamped Muscle Fibre , 1968, Nature.

[12]  E Henneman,et al.  Terminals of Single Ia Fibers: Distribution within a Pool of 300 Homonymous Motor Neurons , 1968, Science.

[13]  M. Kuno,et al.  Non‐linear summation of unit synaptic potentials in spinal motoneurones of the cat , 1969, The Journal of physiology.

[14]  P K Thomas,et al.  Composition of Peripheral Nerves , 1969 .

[15]  W. Rall.  Time constants and electrotonic length of membrane cylinders and neurons. , 1969, Biophysical journal.

[16]  A. Scheibel,et al.  Terminal patterns in cat spinal cord. 3. Primary afferent collaterals. , 1969, Brain research.

[17]  M. Kuno,et al.  Analysis of synaptic efficacy in spinal motoneurones from ‘quantum’ aspects , 1969, The Journal of physiology.

[18]  P. Nelson,et al.  Some electrical measurements of motoneuron parameters. , 1970, Biophysical journal.

[19]  J. Jack,et al.  An electrical description of the motoneurone, and its application to the analysis of synaptic potentials , 1971, The Journal of physiology.

[20]  R Porter,et al.  The time course of minimal excitory post-synaptic potentials evoked in spinal motoneurones by group Ia afferent fibres. , 1971, The Journal of physiology.

[21]  J J Jack,et al.  The propagation of transient potentials in some linear cable structures , 1971, The Journal of physiology.

[22]  W. Crill,et al.  Specific membrane resistivity of dye-injected cat motoneurons. , 1971, Brain research.

[23]  S. Redman.  The attenuation of passively propagating dendritic potentials in a motoneurone cable model , 1973, The Journal of physiology.

[24]  R Iansek,et al.  An analysis of the cable properties of spinal motoneurones using a brief intracellular current pulse , 1973, The Journal of physiology.

[25]  M. Randić,et al.  Synaptic action on Clarke's column neurones in relation to afferent terminal size , 1973, The Journal of physiology.