title: Chaotic dynamics of ventilatory flow in humans.
abstract: The present study provides further insights into the chaotic nature of the ventilatory behaviour in spontaneously breathing heal thy humans by applying the noise titration method t o ventilatory flow signals gathered in this s e t t i n g . In five subjects with normal breathing pattern and end-tidal CO2, the noise titration method gave a positive noise limit ranged from 6 to 43%. Our study shows that the noise titration technique does find chaos in the ventilatory behaviour o f healthy humans at rest, therefore opening the way to further investigations.
authors.affiliation: Laboratoire de Physiopathologie Respiratoire, Service de Pneumologie et R&#233;animation, Groupe Hospitalier Piti&#233;-Salp&#234;tri&#232;re, Assistance Publique-H&#244;pitaux de Paris and with Hamilton Medical AG, Via Nova, CH-7403 Rh&#228;zuns, Switzerland. Phone 00 41 79 660 62 30; fax: 00 41 79 660 60 20; e-mail: mwysocki@hamilton-medical.ch.
authors.forename: Marc
authors.initials: M
authors.lastname: Wysocki
authors.forename: Marie-Noelle
authors.initials: MN
authors.lastname: Fiamma
authors.forename: Christian
authors.initials: C
authors.lastname: Straus
authors.forename: Chi
authors.initials: C
authors.lastname: Sang Poon
authors.forename: Thomas
authors.initials: T
authors.lastname: Similowski