par Lanquart, Jean Pol 
;Nardone, Pasquale ;Hubain, Philippe ;Loas, Gwenolé ;Linkowski, Paul
Référence Journal of neuroscience methods, 293, page (234-246)
Publication Publié, 2018-01
;Nardone, Pasquale ;Hubain, Philippe ;Loas, Gwenolé ;Linkowski, Paul Référence Journal of neuroscience methods, 293, page (234-246)
Publication Publié, 2018-01
Article révisé par les pairs
| Résumé : | Background We present the results of an analysis of the low frequency (LF) (0.25–1 Hz) and delta (1–4 Hz) waves during human sleep. Our objective was to investigate whether LF and delta waves should be considered as separate entities. Methods The slow-wave electroencephalogram (EEG) activity of 2 sets of 10 young, healthy volunteers was analysed utilising the rarely-used Lomb-Scargle periodogram. This method has advantages over the more commonly-used Fast Fourier Transform analysis. Results During the night, the frequencies of the most powerful waves are concentrated in the 0.5–2 Hz range and show a continuous tendency to shift towards slower frequencies during sleep. Comparison with existing methods When considering the frequency dynamics of slow-wave activity below 3 Hz, the unifying theory of LF and delta waves is more parsimonious than the idea that there is a different origin and regulation for the two sub-bands. Conclusions The unifying theory of LF and delta waves is the simplest explanation for the slow-wave activity of the EEG below 3 Hz. This finding is important for the clinical use of slow-wave activity. |
