Can I read Static Firing Rates of Premotor and Primary Motor Cortical Neurons Associated with Torque and Joint Position on EtoBox?

Static Firing Rates of Premotor and Primary Motor Cortical Neurons Associated with Torque and Joint Position by W. Werner; E. Bauswein; C. Fromm is a Neuroscience article available to read on EtoBox.

What is Static Firing Rates of Premotor and Primary Motor Cortical Neurons Associated with Torque and Joint Position about?

Single cell activity was studied in the postarcuate premotor area (PMA) and primary motor cortex (MI) of two monkeys performing a load-bearing task with the contralateral hand. Steady-state discharge rates were examined in relation to positional maintenance of the wrist which was held in one of three given positions against graded torques directed towards flexion or extension. Significant and monotonic relationships between tonic firing rate and static torque were found in 41% of 477 MI cells and in only 26% of 470 units studied in PMA. However, for specific cell groups in the PMA the proportion of load-related neurons reached that of the MI samples; this was true for pyramidal tract neurons (PTNs) and for 'non-PTNs' if recorded in their vicinity. The most interesting difference pertains to the range of load over which cells in both areas modulated activity. MI neurons showed steepest change of firing rates over a limited range of small torques around zero external load; the population average displayed a sigmoidal relationship. Proportionally more PMA neurons increased their activity over the entire range of torques examined or showed the highest increase with stronger torques; th

Who reads Static Firing Rates of Premotor and Primary Motor Cortical Neurons Associated with Torque and Joint Position?

Author

W. Werner; E. Bauswein; C. Fromm

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0014-4819)

Published

1991

Language

EN

Field

Neuroscience (Life Sciences)