On the rhythmicity of quadratic phase coupling in the tracé alternant EEG in healthy neonates

Karin Schwab; Peter Putsche; Michael Eiselt; Marko Helbig; Herbert Witte

doi:10.1016/j.neulet.2004.05.053

On the rhythmicity of quadratic phase coupling in the tracé alternant EEG in healthy neonates

Neurosci Lett. 2004 Oct 21;369(3):179-82. doi: 10.1016/j.neulet.2004.05.053.

Authors

Karin Schwab¹, Peter Putsche, Michael Eiselt, Marko Helbig, Herbert Witte

Affiliation

¹ Institut of Medical Statistics, Computer Sciences and Documentation, Medical Faculty of the Friedrich Schiller University Jena, 07740 Jena, Germany.

PMID: 15464260
DOI: 10.1016/j.neulet.2004.05.053

Abstract

The time-variant quadratic phase coupling (QPC) in trace alternant (TA) EEG patterns in healthy full-term neonates (quiet sleep) was investigated by means of time-variant bispectral analysis. The frequency plain 1-1.5 Hz <=> 3.5-4.5 Hz was used as the region-of-interest. QPC rhythms with a frequency of approximately 0.1 Hz were found in all neonates (n = 6). It can be demonstrated that the QPC rhythm of the TA is generated by a pattern-spanning time-variant phase-locking process characterising early functional interactions in the immature brain.

Publication types

Comparative Study
Research Support, Non-U.S. Gov't

MeSH terms

Brain / physiology*
Brain Mapping
Electroencephalography / methods*
Female
Humans
Infant
Male
Periodicity*
Signal Processing, Computer-Assisted / instrumentation
Time Factors