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American Journal of Industrial Medicine, EarlyView.ABSTRACT Background We investigated associations of self‐reported and job exposure matrix (JEM) assigned civilian occupational exposure to vapors, gas, dust, or fumes (VGDF) with respiratory symptoms among previously deployed US Veterans. Methods An interviewer‐administered questionnaire ascertained self‐reported civilian occupational VGDF exposure.
Sahra Mohazzab‐Hosseinian +14 more
wiley +1 more source
Sleep architecture in Alzheimer’s disease continuum: The deep sleep question
Open Life SciencesFoukarakis Ioannis +8 more
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Electroencephalography and Clinical Neurophysiology, 1971
The electroencephalogram and electro-oculogram of two unrestrained juvenile chimpanzees was monitored for 7 consecutive nights using telemetry methods. Of the sleeping time, 23% was spent in the rapid eye movement of REM type of sleep, whereas 8, 4, 15, and 10% were spent in non-REM stages 1 through 4, respectively.
F R, Freemon, J J, McNew, W R, Adey
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The electroencephalogram and electro-oculogram of two unrestrained juvenile chimpanzees was monitored for 7 consecutive nights using telemetry methods. Of the sleeping time, 23% was spent in the rapid eye movement of REM type of sleep, whereas 8, 4, 15, and 10% were spent in non-REM stages 1 through 4, respectively.
F R, Freemon, J J, McNew, W R, Adey
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Computer-assisted sleep staging
IEEE Transactions on Biomedical Engineering, 2001To address the subjectivity in manual scoring of polysomnograms, a computer-assisted sleep staging method is presented in this paper. The method uses the principles of segmentation and self-organization (clustering) based on primitive sleep-related features to find the pseudonatural stages present in the record.
R, Agarwal, J, Gotman
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Sleep Electroencephalograms and Sleep Stages in Hypoparathyroidism
European Neurology, 19792 patients with hypoparathyroidism, one idiopathic and the other pseudoform, were studied by overnight polygraphic recording of the sleep EEG and related activities before and after start of treatment to investigate their sleep EEG patterns and states, with the results as follows.
Y, Fukuyama, M, Hayashi
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Stage 4 Sleep in Schizophrenia
Archives of General Psychiatry, 1969THE stage 4 EEG (employing the Dement and Kleitman 1 nomenclature) of sleep, as measured in our laboratory, consists of high-voltage (over 50V) slow (under 4 cycles per second) activity occurring with a stipulated density (over 16 waves per 20second epoch, or over 50% of the epoch occupied by such slow waves).
I, Feinberg +3 more
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State Measures and Sleep Stages
Psychological Reports, 1983The present study examines the relationship between sleep and mood variables in an aging (50- to 60-yr.-old) sample of 36 males and 39 females. Data from two nights of sleep recordings were correlated with 5 mood scales from the Lorr Mood test administered 1/2 hr. prior to bedtime on the second night. 18 sleep variables were analyzed.
D T, Berry, W B, Webb
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2011
Wakefulness (stage W) is characterized by the “alpha” rhythm, so named because it was the first electroencephalogram (EEG) rhythm discovered. Alpha frequency activity is 8–13 cycles/s and may be recorded anywhere in the brain. Alpha rhythm, however, has come to signify the sinusoidal resting rhythm of the occipital cortex.
Hrayr P. Attarian, Nidhi S. Undevia
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Wakefulness (stage W) is characterized by the “alpha” rhythm, so named because it was the first electroencephalogram (EEG) rhythm discovered. Alpha frequency activity is 8–13 cycles/s and may be recorded anywhere in the brain. Alpha rhythm, however, has come to signify the sinusoidal resting rhythm of the occipital cortex.
Hrayr P. Attarian, Nidhi S. Undevia
openaire +1 more source