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Upcoming area seminar's and lectures

Chemstry Department Seminars

Biophysics Seminar, Boston University

Time: 12:30 pm, Monday 25 Oct. 1999
Place: Room SCI-352, 590 Commonwealth Avenue, Boston Univ

Speaker: Dr. Thomas Penzel

Affiliation: Medical Polyclinic, Department of Internal Medicine, Philipps-University, Marburg, Germany

Title: Complex Signal Dynamics During Sleep: A Challenge to Physicists and Physiologists
Further details: Contact host Gene Stanley, HES@BU.EDU or Plamen Ivanov

Sleep is not just the oposite of wakefulness. Sleep has its own internal structure with a sequence of light sleep, deep sleep and rapid-eye-movement sleep. The sleep stages are characterized by specific changes in brain waves and in autonomic nervous system functions, such as heart rate and control of breathing. A number of disorders have their origin during sleep. Sleep medicine is dedicated to the diagnosis and therapy of these disorders. Advanced methods of signal analysis are applied to EEG, EOG, EMG, respiratory flow, blood pressure and heart rate to improve diagnosis. These methods are based on digital filtering, spectral analysis and stochastic analysis of signals. Results of these methods can be implemented in new diagnostic devices used in clinical sleep centers.

Sean Quinlan <>
last modified: Wednesday, October 20, 1999 1:52:36 PM