Spontaneous and electrically-evoked activity in the anterolateral column of the spinal cord in dogs

Publisher Website
Google Scholar
Abstract
✓ Recordings have been made from the upper cervical spinal cords of 14 intact anesthetized dogs. Small bipolar concentric electrodes were passed from posterior to anterior and the spontaneous electrical activity at different depths recorded. It has been shown that there is a difference between the activity recorded in the gray and white matter and between different regions in the gray matter. Responses evoked by contralateral electrical skin stimulation have also been recorded in the anterolateral columns. The results obtained suggest that the fibers may be arranged in the tract as a model of body image rather than segmentally. All the trajectories used in this study have been verified histologically. Possible application of this technique to the procedure of percutaneous cordotomy is discussed.