Sex differences in electrocortical activity in human neonates
Journal article, 2006
Cerebral cortical activity in healthy, full-term human neonates (10 boys and 10 girls) was evaluated using spectral estimation of electroencephalogram frequency content with new equipment and analysis technique allowing the assessment of the lowest frequencies (i.e. infraslow waves). The activity was analysed under quiet sleep and active wakefulness taking sex into consideration. During sleep, the mean amount of infraslow activity was 27% larger in boys, whereas during wakefulness the average amount of higher frequencies was 17% larger in girls. Both these differences indicate an earlier maturation of cortical function in girls than in boys.
Newborn
Wakefulness/physiology
Male
Infant
Cerebral Cortex/*physiology
Sleep/physiology
Reference Values
*Sex Characteristics
Female
Humans
*Electroencephalography
Author
M. Thordstein
Nils Löfgren
Chalmers, Signals and Systems
Anders Flisberg
University of Gothenburg
Kaj Lindecrantz
Ingemar Kjellmer
University of Gothenburg
NeuroReport
0959-4965 (ISSN)
Vol. 17 11 1165-8Subject Categories
MEDICAL AND HEALTH SCIENCES
PubMed
16837847