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Association of an individual's ability to overcome desire to fall asleep with a higher anterior-posterior gradient in electroencephalographic indexes of sleep pressure

Published on Mar 1, 2017in International Journal of Psychophysiology2.407
· DOI :10.1016/j.ijpsycho.2017.01.002
Arcady A. Putilov16
Estimated H-index: 16
(Academy of Medical Sciences, United Kingdom),
Olga G. Donskaya10
Estimated H-index: 10
(Academy of Medical Sciences, United Kingdom)
Source
Abstract
Abstract Individual differences in ability to overcome desire to fall asleep cannot be accurately predicted from subjective and objective measurements of sleepiness level. Previously, we showed that an exponential buildup of sleep pressure during prolonged wakefulness can be accurately traced with electroencephalographic (EEG) indexes, such as Spectral Sleep Pressure Component (SSPC) score and score on the 2nd principal component (2PC) of the EEG spectrum. The anterior-posterior gradients in SSPC and 2PC scores were calculated as the differences between frontal and occipital scores and examined as possible correlates of individual's ability to overcome desire of falling asleep. Fifteen young and 15 older adults participated in two identically designed sleep deprivation experiments. After, at least, 12 hours of wakefulness, resting EEG recordings were obtained from frontal and occipital derivations with 2-h intervals during 26–50 hours. Due to irresistible desire to sleep, 11 young and 5 older adults completed
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AbstractAccording to the two-process model of sleep–wake regulation, a homeostatic sleep pressure, i.e. a pressure to enter into deep non-rapid eyes movement (NREM) sleep, must exhibit a purely exponential buildup during prolonged wakefulness. However, this pressure is usually measured indirectly, i.e. during the following episode of actual deep NREM sleep. The purpose of this paper was to show that, despite a prominent circadian modulation of time course of any waking EEG index, the model-postu...
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#1Arcady A. Putilov (Academy of Medical Sciences, United Kingdom)H-Index: 16
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EPIDEMIOLOGICAL STUDIES HAVE DOCUMENTED AN INCREASED PREVALENCE OF SLEEP COMPLAINTS, INCLUDING INSOMNIA, IN OLDER ADULTS.1,2 The rate of prescriptions for hypnotics is high for this segment of the population although the effectiveness of current hypnotics remains unsatisfactory.3 Whether and how the age-dependent increase in insomnia is related to the age-related changes in sleep regulation in healthy individuals is currently not known. Healthy aging is associated with profound changes in sleep ...
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#1A. A. PutilovH-Index: 1
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