Power spectral analysis of EEG in a multiple-bedroom, multiple-polygraph sleep laboratory

Vasko, Raymond; Brunner, Daniel P.; Monahan, James P.; Doman, Jack; Boston, J.R.; El-Jaroudi, A.; Miewald, Jean M.; Buysse, Daniel J.; Reynolds, Charles F.; Kupfer, David J.

doi:10.1016/s1386-5056(97)00064-6

Cited by 39 publications

(28 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sleep record was visually scored in 20-second epochs using Rechtschaffen and Kales criteria (Rechtschaffen & Kales, 1968) since the study was completed prior to the revised American Academy of Sleep Medicine criteria. Spectral analysis was performed on the EEG data using epochs scored as NREM sleep (Vasko et al, 1997). Spectral density data from the C4 channel within the 0.5–4 Hz (delta) and 12–16 Hz (sigma) bins were analyzed for the present study.…”

Section: Methodsmentioning

confidence: 99%

Changes in Cognitive Performance Are Associated with Changes in Sleep in Older Adults With Insomnia

Wilckens

Hall

Nebes

et al. 2015

Behavioral Sleep Medicine

View full text Add to dashboard Cite

The present study examined sleep features associated with cognition in older adults and examined whether sleep changes following insomnia treatment were associated with cognitive improvements. Polysomnography and cognition (recall, working memory, and reasoning) were assessed before and after an insomnia intervention (Brief Behavioral Treatment of Insomnia (BBTI) or information control (IC)) in 77 older adults with insomnia. Baseline wake-after-sleep-onset (WASO) was associated with recall. Greater NREM (non-rapid eye movement) delta power and lower NREM sigma power were associated with greater working memory and reasoning. The insomnia intervention did not improve performance. However, increased absolute delta power and decreased relative sigma power were associated with improved reasoning. Findings suggest that improvements in executive function may occur with changes in NREM architecture.

show abstract

Section: Methodsmentioning

confidence: 99%

Changes in Cognitive Performance Are Associated with Changes in Sleep in Older Adults With Insomnia

Wilckens

Hall

Nebes

et al. 2015

Behavioral Sleep Medicine

View full text Add to dashboard Cite

show abstract

“…EEG signals were recorded at 20-second epochs, were digitized at 256 Hz, decimated to 128 Hz, and sleep stages were visually scored according to Rechtschaffen and Kales criteria (Brunner et al, 1996; Rechtschaffen & Kales, 1968; Vasko et al, 1997). Measures of interest included sleep onset latency, wake after sleep onset, and total sleep time.…”

Section: Methodsmentioning

confidence: 99%

Evening-type military veterans report worse lifetime posttraumatic stress symptoms and greater brainstem activity across wakefulness and REM sleep

Hasler

Insana

James

et al. 2013

Biological Psychology

View full text Add to dashboard Cite

Evening chronotypes exhibit increased rates of affective dyregulation and sleep disturbances (e.g., insomnia and nightmares). Such symptoms are common to military veterans with posttraumatic stress disorder (PTSD); however, the influence of chronotype on this population remains unknown. We examined behavioral, psychological, and neural correlates of chronotype in 36 combat-exposed military veterans with varying degrees of posttraumatic stress symptomatology. We employed FDG-PET to assess neural activity across wakefulness and rapid eye movement (REM) sleep. We used polysomnography and diaries to monitor sleep, and a self-report survey to measure chronotype. Eveningness was associated with greater lifetime PTSD symptoms, more disturbed sleep, and more frequent and intense nightmares. Eveningness was also associated with greater brain activity in posterior cingulate/precuneus and brainstem regions across wakefulness and REM sleep, overlapping with regions related to arousal and REM sleep generation. Chronotype may be an important correlate of neural activity in REM sleep-generating and/or arousal regulatory regions among combat-exposed veterans with PTSD symptoms. Further investigations of the role of chronotype in PTSD are warranted.

show abstract

“…measures, including one channel of EEG recording~C4 referenced to tied mastoids A1-A2!, bilateral EOGs~referenced to A1-A2! and bipolar submental EMGs, were recorded every night~Doman et al., 1995;Vasko et al, 1997!. The PSG was visually scored on computer screens using 60-s epochs according to modified~Rechtschaffen & Kales, 1968! criteria.…”

Section: Methodsmentioning

confidence: 99%

The effects of age and gender on sleep EEG power spectral density in the middle years of life (ages 20–60 years old)

et al. 2001

View full text Add to dashboard Cite

The effects of age and gender on sleep EEG power spectral density were assessed in a group of 100 subjects aged 20 to 60 years. We propose a new statistical strategy (mixed-model using fixed-knot regression splines) to analyze quantitative EEG measures. The effect of gender varied according to frequency, but no interactions emerged between age and gender, suggesting that the aging process does not differentially influence men and women. Women had higher power density than men in delta, theta, low alpha, and high spindle frequency range. The effect of age varied according to frequency and across the night. The decrease in power with age was not restricted to slow-wave activity, but also included theta and sigma activity. With increasing age, the attenuation over the night in power density between 1.25 and 8.00 Hz diminished, and the rise in power between 12.25 and 14.00 Hz across the night decreased. Increasing age was associated with higher power in the beta range. These results suggest that increasing age may be related to an attenuation of homeostatic sleep pressure and to an increase in cortical activation during sleep.

show abstract

Power spectral analysis of EEG in a multiple-bedroom, multiple-polygraph sleep laboratory

Cited by 39 publications

References 9 publications

Changes in Cognitive Performance Are Associated with Changes in Sleep in Older Adults With Insomnia

Changes in Cognitive Performance Are Associated with Changes in Sleep in Older Adults With Insomnia

Evening-type military veterans report worse lifetime posttraumatic stress symptoms and greater brainstem activity across wakefulness and REM sleep

The effects of age and gender on sleep EEG power spectral density in the middle years of life (ages 20–60 years old)

Contact Info

Product

Resources

About