ISSN:
1741-0444
Keywords:
Acceleration
;
Concussion
;
Correlation
;
Evoked potential
;
Latency
;
Neurophysiology
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
Notes:
Abstract Somatosensory evoked potentials (e.p.s) produced by stimulation of the dorsal columns were recorded from the cervicol medullary junction of adult rhesus monkeys, and were analysed using normalised cross-correlation functions (n.c.c.f.s.), simple peak detection and r.m.s. amplitude measurement. The n.c.c.f. provided measures of latency shift and waveshape change, while the more traditional peak-detection method provided measures of peak latency and peak amplitude. The results of these procedures were plotted as functions of time relative to a single, brief experimental manipulation (impact acceleration of the whole body). Analysis by means of the n.c.c.f. was found to be a versatile and effective technique the advantages of which include measurement of latency shifts with little contamination by moderate changes in waveshape, quantification of subtle waveshape changes and usefulness under a wide variety of noise conditions
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02441530
