Multichannel detection of magnetic compound action fields of median and ulnar nerves

R Hari; J Hällström; J Tiihonen; S L Joutsiniemi

doi:10.1016/0013-4694(89)90253-8

Multichannel detection of magnetic compound action fields of median and ulnar nerves

Electroencephalogr Clin Neurophysiol. 1989 Mar;72(3):277-80. doi: 10.1016/0013-4694(89)90253-8.

Authors

R Hari¹, J Hällström, J Tiihonen, S L Joutsiniemi

Affiliation

¹ Low Temperature Laboratory, Helsinki University of Technology, Espoo, Finland.

PMID: 2465131
DOI: 10.1016/0013-4694(89)90253-8

Abstract

We have recorded magnetic compound action fields, evoked by median and ulnar nerve stimulation at the wrist, with a 7-channel 1st-order SQUID gradiometer. Responses at cubita, elbow and brachial plexus were usually monophasic, with polarities and field patterns corresponding to the intracellular current flow in the leading edge of the action potential volley.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Action Potentials
Adult
Electric Stimulation
Electromagnetic Fields*
Electromagnetic Phenomena*
Humans
Median Nerve / physiology*
Ulnar Nerve / physiology*