scholarly journals The Relationship Between Slow-wave Activity, Body Temperature, and Cardiac Activity During Nighttime Sleep

SLEEP ◽  
2001 ◽  
Vol 24 (3) ◽  
pp. 343-349 ◽  
Author(s):  
Helen J. Burgess ◽  
Alexandra L. Holmes ◽  
Drew Dawson
Keyword(s):  
Body Temperature ◽  
Slow Wave ◽  
Cardiac Activity ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Nighttime Sleep ◽  
The Relationship

scholarly journals Diurnal repeated exercise promotes slow-wave activity and fast-sigma power during sleep with increase in body temperature: a human crossover trial

2019 ◽  
Vol 127 (1) ◽  
pp. 168-177 ◽  
Author(s):  
Sayaka Aritake-Okada ◽  
Kosuke Tanabe ◽  
Yoshiko Mochizuki ◽  
Ryuji Ochiai ◽  
Masanobu Hibi ◽  
...  
Keyword(s):  
Body Temperature ◽  
Temperature Gradient ◽  
Slow Wave ◽  
Acute Exercise ◽  
Core Body Temperature ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Moderate Intensity ◽  
Sleep Structure ◽  
Core Body

The effects of exercise on sleep have been explored from various perspectives, but little is known about how the effects of acute exercise on sleep are produced through physiological functions. We used a protocol of multiple daytime sessions of moderate-intensity aerobic exercise and examined the subsequent effects on sleep structure, core body temperature (CBT), distal-proximal skin temperature gradient (DPG), and subjective parameters. Fourteen healthy men who did not exercise regularly were evaluated under the baseline (no exercise) and exercise conditions on a within-subject crossover basis. Under the exercise condition, each participant performed a 40-min aerobic workout at 40% of maximal oxygen intake, four times between morning and early evening. We observed a 33% increase in slow-wave sleep (SWS; P = 0.005), as well as increases in slow-wave activity (SWA; P = 0.026), the fast-sigma power/SWA ratio ( P = 0.005), and subjective sleep depth and restorativeness the following morning. Moreover, both CBT and the DPG increased during sleep after exercise ( P = 0.021 and P = 0.047, respectively). Regression analysis identified an increased nocturnal DPG during sleep after exercise as a factor in the increase in SWA. The fast-sigma/SWA ratio correlated with CBT. The performance of acute exercise promotes SWS with nocturnal elevation in the DPG. Both CBT and fast-sigma power may play a role in the specific physiological status of the body after exercise.NEW & NOTEWORTHY We used multiple daytime sessions of moderate-intensity aerobic exercise to examine the effects on the sleep structure, core body temperature (CBT), distal-proximal skin temperature gradient (DPG), and subjective parameters. Significant increases in slow-wave activity (SWA), CBT, DPG, fast-sigma power, and subjective parameters were observed during the night and the following morning. Nocturnal DPG is a factor in the increased SWA.

The relationship between slow wave activity increase across acute and chronic sleep loss and vigilance impairments

2017 ◽  
Vol 40 ◽  
pp. e210
Author(s):  
A. Maric ◽  
C. Lustenberger ◽  
E. Werth ◽  
C.R. Baumann ◽  
R. Poryazova ◽  
...  
Keyword(s):  
Slow Wave ◽  
Sleep Loss ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Activity Increase ◽  
The Relationship ◽  
Chronic Sleep

scholarly journals Relationship of sleep homeostasis to seizures and cognition in children with focal epilepsy

2020 ◽  
Author(s):  
Maria H Eriksson ◽  
Torsten Baldeweg ◽  
Ronit Pressler ◽  
Stewart G Boyd ◽  
Reto Huber ◽  
...  
Keyword(s):  
Slow Wave ◽  
Focal Epilepsy ◽  
Nrem Sleep ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Iq Testing ◽  
Sleep Homeostasis ◽  
Interictal Discharges ◽  
Relationship Of ◽  
The Relationship

AbstractObjectiveSleep disruption and cognitive impairment are important co-morbidities in childhood epilepsy, yet a mechanistic link has not been substantiated. Slow wave activity during sleep and its homeostatic decrease across the night is associated with synaptic renormalisation, and shows maturational changes over the course of childhood. Here, we aimed to investigate the effect of epilepsy on sleep homeostasis in the developing brain.MethodsWe examined the relationship of sleep homeostasis as reflected in slow wave activity to seizures, cognition and behaviour, comparing 22 children (aged 6 to 16 years) with focal epilepsy to 21 age-matched healthy controls. Participants underwent overnight sleep EEG and IQ testing and performed memory consolidation tasks. Their parents completed standard behavioural questionnaires.ResultsChildren with epilepsy had lower slow wave activity at the start of non-rapid eye movement (NREM) sleep, though similar overnight decline and slow wave activity in the final hour of NREM sleep. Both groups displayed an antero-posterior shift in peak slow wave activity overnight, though individual patients showed persistent local increases at scalp locations matching those of focal interictal discharges. Patients who had seizures during their admission had lower early-night slow wave activity, the group without seizures showing similar activity to controls. We found a positive correlation between full scale IQ and early-night slow wave activity in patients but not controls.InterpretationReduced early night slow wave activity in children with focal epilepsies is correlated with lower cognitive ability and more seizures and may reflect a reduction in learning-related synaptic potentiation.

scholarly journals 0321 Increased Slow-Wave Activity Predicts Slower Processing Speed in Toddlers

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A122-A122
Author(s):  
A E Waddle ◽  
S Kurth ◽  
J Harsh ◽  
J M Lassonde ◽  
D Lee ◽  
...  
Keyword(s):  
Reaction Time ◽  
Slow Wave ◽  
Processing Speed ◽  
Cognitive Skills ◽  
Time Course ◽  
Spectral Power ◽  
Nrem Sleep ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
The Relationship

Abstract Introduction Slow-wave activity (SWA) shows an inverted U-shaped time course during development. Specifically, maximal SWA undergoes a posteroanterior shift from 2 to 20 years of age, which may reflect cortical maturation. Previously, we showed that greater slow sigma power during sleep predicted faster reaction time in preschool-aged children. To date, little is known about the relationship between SWA and processing speed (PS), a basic fundament underlying complex cognitive skills in early development. Methods This project examined the relationship between SWA and PS in 2.5-3.0-year-old children (n=26, 50% males) via home-based assessments. After a 5-day stabilization sleep schedule, a baseline sleep EEG recording was performed on participants at 4 electrode placements: Fz, Oz, C3, and C4. SWA EEG spectral power was quantified in the 0.75-4.5 Hz rangeduring the first 60 minutes of NREM sleep. PS was obtained as part of a standard cognitive assessment via a computer-based task one hour after waking from a midday nap. Results On average, reaction time (PS) was 2111 ± 08 ms and SWA was 856.4 ± 300.7 µV2/Hz. Increased SWA in the occipital region was predictive of a longer reaction time and therefore slower PS (r = 0.44, p = 0.03). This relationship showed differences between sexes, suggesting that females (r = 0.26, p = 0.07) may show a stronger association between SWA in the occipital brain region and PS than males (r = 0.09, p = 0.33). Conclusion Interestingly, these findings contradict our hypothesis based on previous data with older children indicating that greater SWA was associated with more advanced behavioral and cognitive skills. This discrepancy may reflect the stark individual differences present within this rapidly maturing age group. Support Research support from NIH R01-MH086566 to MKL.

Body temperature and the return of slow wave activity in extended sleep

1996 ◽  
Vol 98 (1) ◽  
pp. 42-50 ◽  
Author(s):  
G. Christ ◽  
J. De Koninck ◽  
M. Hébert ◽  
J. Carrier ◽  
C. Lamarche ◽  
...  
Keyword(s):  
Body Temperature ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity

Forebrain rhythm generators influence sympathetic activity in anesthetized cats

1990 ◽  
Vol 259 (3) ◽  
pp. R572-R578
Author(s):  
M. J. Kenney ◽  
G. L. Gebber ◽  
S. M. Barman ◽  
B. Kocsis
Keyword(s):  
Slow Wave ◽  
Coherence Function ◽  
Sympathetic Nerves ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Descending Influences ◽  
Alpha Chloralose ◽  
The Relationship ◽  
Electroencephalogram Eeg ◽  
Renal Sympathetic

Autospectral and coherence analyses were used to study the frequency-domain relationships between frontal-parietal cortical activity [electroencephalogram (EEG)] and the discharges of the interior cardiac and renal sympathetic nerves of baroreceptor-denervated and vagotomized cats anesthetized with either alpha-chloralose or pentobarbital sodium. Delta slow-wave activity in the EEG was correlated to sympathetic nerve discharge (SND) as shown by sharp peaks between 0.5 and 4 Hz in the coherence function. The relationship was stronger in chloralose- than in pentobarbital-anesthetized cats. Coherence of the two signals could be attributed to descending influences of forebrain delta slow-wave generators on sympathetic circuits, since midbrain transection preferentially reduced the power in SND at frequencies that cohered to the EEG before transection. In contrast, the power in the EEG was not reduced by midbrain transection. The relationship between cortical delta slow-wave activity and SND was stronger during than between cortical spindlelike events that lasted 1-3 s and recurred once every 5-10 s. These events were similar to cortical spindles observed during the early stages of sleep and under light barbiturate anesthesia. These observations raise the possibility that the influences of forebrain delta slow-wave generators on SND are gated by thalamic mechanisms normally involved in the sleep-wake cycle.

Sa1640 NONINVASIVE MEASUREMENT OF SMALL BOWEL SLOW WAVE ACTIVITY IN NEONATES - A PILOT STUDY

2020 ◽  
Vol 158 (6) ◽  
pp. S-364
Author(s):  
Suseela Somarajan ◽  
Nicole D. Muszynski ◽  
Aurelia s. Monk ◽  
Joseph D. Olson ◽  
Alexandra Russell ◽  
...  
Keyword(s):  
Pilot Study ◽  
Small Bowel ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Noninvasive Measurement
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