Is there a difference between extrauterine and intrauterine maturation on BAEP?
A difference between extrauterine and intrauterine maturation on BAEP has not been established, remaining a subject of controversy. The present study involved 76 children, aged between 36 and 37 weeks (conceptional age), with an extrauterine life duration of equal to or less than 2 weeks (N = 46) or more than 2 weeks (N = 30). The latencies for waves III and V, and the I-III and I-V intervals were significantly shorter for the neonates with a greater extrauterine life duration. An explanation for this finding is discussed: the head size is significantly smaller in the group with a greater extrauterine life duration. An influence of extrauterine life duration on BAEP is thus shown, but it seems to reflect the anatomical consideration and not to peripheral auditory system maturation.
Collet
L
L
Laboratoire d'explorations fonctionnelles neurosensorielles, Pavillon U, Hôpital Edouard Herriot, Lyon, France.
Soares
I
I
Morgon
A
A
Salle
B
B
D000375:Aging / Q000502:physiology*; D001306:Auditory Pathways / Q000254:growth & development / Q000502:physiology*; D005072:Evoked Potentials, Auditory; D005260:Female; D005865:Gestational Age; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature / Q000502:physiology*; D008297:Male; D011930:Reaction Time / Q000502:physiology