Behavioral Versus EEG-Based Monitoring of All-Night Sleep/Wake Patterns

Evaluation of nocturnal bronchoconstriction by all night tracheal sound monitoring.

BACKGROUND A study was undertaken to evaluate the reliability of a digital tracheal sound analyser (ELENS-DSA) in predicting nocturnal changes in airways resistance in asthmatic patients. This device allows continuous measurement of the proportion of the time occupied by wheezing (Wh%). METHODS Nocturnal polygraphic studies with simultaneous continuous monitoring of tracheal sounds and airway...

All day, and all of the night.

Spectral analysis of all-night human sleep EEG in narcoleptic patients and normal subjects.

To investigate the pathophysiology of narcoleptic patients' sleep in detail, we analysed and compared the whole-night polysomnograms of narcoleptic patients and normal human subjects. Eight drug-naive narcoleptic patients and eight age-matched normal volunteers underwent polysomnography (PSG) on two consecutive nights. In addition to conventional visual scoring of the polysomnograms, rapid eye ...

All Night Spectral Analysis of EEG Sleep in Young Adult and Middle-Aged Male Subjects

All night spectral analysis of EEG sleep in young adult and middle-aged male subjects.

The sleep EEGs of 9 young adult males (age 20-28 years) and 8 middle-aged males (42-56 years) were analyzed by visual scoring and spectral analysis. In the middle-aged subjects power density in the delta, theta and sigma frequencies were attenuated as compared to the young subjects. In both age groups power density in the delta and theta frequencies declined from NREM period 1 to 3. In the sigm...