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The Waveforms of the Group Mean SEP of Each Sex*
Author(s) -
Ikuta Takumi,
Furuta Noriko
Publication year - 1981
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1981.tb00197.x
Subject(s) - waveform , amplitude , latency (audio) , medicine , audiology , physics , telecommunications , optics , computer science , voltage , quantum mechanics
With SEPs recorded from age‐matched normal human subjects, 100 males and 100 females, 22.34 ± 1.69 years, it was confirmed that the Group Mean SEP of each sex each converges to a given waveform which significantly differed from each other. The waveform of the Group Mean SEP for females consisted of the 12 components, and was approximately tetraphasic within 500 msec in latency, while that for males consisted of the same components except for N 4 and P 4 . There was a high convex arch with P 4 (82 msec) between P 2 and N 6 for females, but a low hollow slope without the peak for males. With Scaled SEPs, which were converted from SEPs by Amplitude Scaling, the results similar to those with SEPs were obtained.