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Differences of latencies and amplitudes of brain stem evoked potentials in subgroups of a normal material
Author(s) -
KJAER MOGENS
Publication year - 1979
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1979.tb02913.x
Subject(s) - audiology , stimulus (psychology) , significant difference , medicine , psychology , psychotherapist
Brain stem auditory evoked potentials have been recorded in 40 normal subjects aged 13–48 years, by stimulating monaurally wiht random stimulus interval. The male subjects have latencies of the waves III‐VII, which are significantly longer than female subjects ( P < 0.0005), the elongation increasing from 0.09 to 0.44 msec from wave III to VII. The female subjects have amplitudes significantly higher than male subjects, although the variations are very wide. No difference in latencies from tall versus short subjects is found, as well as no significant difference in latencies between subgroups of older and younger subjects of the material. It is found necessary to have different normal values for the two sexes.