Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Raymond C. Vasko"'
Autor:
Anne Germain, Matthew D. Puhl, Raymond C. Vasko, Jean M. Miewald, Julian F. Thayer, Daniel J. Buysse, Douglas E. Moul, Martica H. Hall
Publikováno v:
Behavioral Sleep Medicine. 5:178-193
The objective of this study was to evaluate cross-sectional relationships among symptoms of psychological stress, sleep, and physiological arousal during non-rapid eye movement (NREM) sleep in a sample of 30 patients with chronic, primary insomnia (m
Autor:
J David Cashmere, Qingxia Chen, Julian F. Thayer, Martica H. Hall, David J. Kupfer, Hernando Ombao, Daniel J. Buysse, Raymond C. Vasko
Publikováno v:
Psychosomatic Medicine. 66:56-62
OBJECTIVE Although stress can elicit profound and lasting effects on sleep, the pathways whereby stress affects sleep are not well understood. In this study, we used autoregressive spectral analysis of the electrocardiogram (EKG) interbeat interval s
Autor:
Max E. Levine, Robert M. Stern, Karen S. Quigley, Eric R. Muth, Raymond C. Vasko, Peter J. Gianaros
Publikováno v:
Psychophysiology. 40:39-44
Chemotherapy-induced nausea has been associated with a time-related decrease in cardiac parasympathetic activity. We tested the hypothesis that a time-related decrease in cardiac parasympathetic activity would also be associated with nausea and other
Autor:
David J. Kupfer, James P. Monahan, Christopher Detka, Charles F. Reynolds, Raymond C. Vasko, Daniel P. Brunner
Publikováno v:
Journal of Sleep Research. 5:155-164
Owing to the use of scalp electrodes in human sleep recordings, cortical EEG signals are inevitably intermingled with the electrical activity of the muscle tissue on the skull. Muscle artifacts are characterized by surges in high frequency activity a
Autor:
Ripu D. Jindal, Michael E. Thase, Amy L. Fasiczka, Charles F. Reynolds, J. Richard Jennings, Raymond C. Vasko
Publikováno v:
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry. 16(11)
Objective The present study examines a measure of cardiac autonomic function, the heart rate variability (HRV), in a group of depressed elderly. Cardiac autonomic abnormalities have been implicated as a potential mediator of cardiovascular events and
Publikováno v:
Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ.
Publikováno v:
ICASSP
Hidden Markov modeling (HMM) provides a probabilistic framework for modeling a time series of multivariate observations. An HMM describes the dynamic behavior of the observations in terms of movement among the states of a finite-state machine. We pre
Publikováno v:
Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136).
Hidden Markov modeling (HMM) provides a probabilistic framework for modeling time series of multivariate observations. An HMM describes the dynamic behavior of the observations in terms of movement among the states of a finite-state machine. We have
Publikováno v:
ICASSP
Vasko et al. (see IEEE Proc. ICASSP '96, vol.6, p.3578-82, 1996) presented an algorithm that estimates the topology of a hidden Markov model (HMM) given a set of time series data. The algorithm iteratively prunes state transitions from a large genera
Autor:
Jack Doman, Amro El-Jaroudi, Daniel J. Buysse, Daniel P. Brunner, James P. Monahan, David J. Kupfer, Jean M. Miewald, Charles F. Reynolds, Raymond C. Vasko, J. Robert Boston
Publikováno v:
International journal of medical informatics. 46(3)
Objectives: We describe the methods for power spectral analysis (PSA) of sleep electroencephalogram (EEG) data at a large clinical and research sleep laboratory. The multiple-bedroom, multiple-polygraph design of the sleep laboratory poses unique cha