Accession Number:

ADP006098

Title:

Evoked Potential Analysis of Impact Acceleration Experiments,

Descriptive Note:

Corporate Author:

NAVAL BIODYNAMICS LAB NEW ORLEANS LA

Personal Author(s):

Report Date:

1988-02-01

Pagination or Media Count:

13.0

Abstract:

This report focuses on the use of somatosensory evoked potentials SEPs as an assessment tool for transient injury in rhesus macaques undergoing impact acceleration in the - Gx direction. Adult male rhesus macaques, seated on a sled and restrained except for the head and neck, were accelerated at peak sled accelerations ranging from 95.5 to 1039.6 msec2. The sled was decelerated by friction forces ranging from 0.7 to 3.0 msec2. Somatosensory stimuli were delivered prior to, during, and after impact. Amplified SEP activity was telemetered and recorded on magnetic tape. The raw SEP data were digitized and analyzed off-line. Results for cortical SEPs are consistent with and extend previous analyses, suggesting a threshold for transitory changes in cervical SEP latencies in macaques at peak -Gx sled accelerations below 550 msec2. js

Subject Categories:

  • Psychology
  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE