scholarly journals The first-night effect suppresses the strength of slow-wave activity originating in the visual areas during sleep

2014 ◽  
Vol 99 ◽  
pp. 154-161 ◽  
Author(s):  
Masako Tamaki ◽  
Ji Won Bang ◽  
Takeo Watanabe ◽  
Yuka Sasaki
Keyword(s):  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Visual Areas ◽  
First Night Effect

scholarly journals Visual imagery and visual perception induce similar changes in occipital slow waves of sleep

2019 ◽  
Vol 121 (6) ◽  
pp. 2140-2152 ◽  
Author(s):  
Giulio Bernardi ◽  
Monica Betta ◽  
Jacinthe Cataldi ◽  
Andrea Leo ◽  
José Haba-Rubio ◽  
...  
Keyword(s):  
Visual Perception ◽  
Eye Movement ◽  
Slow Wave ◽  
Visual Imagery ◽  
Nrem Sleep ◽  
Wave Activity ◽  
Slow Waves ◽  
Slow Wave Activity ◽  
Short Term ◽  
Visual Areas

Previous studies have shown that regional slow-wave activity (SWA) during non-rapid eye movement (NREM) sleep is modulated by prior experience and learning. Although this effect has been convincingly demonstrated for the sensorimotor domain, attempts to extend these findings to the visual system have provided mixed results. In this study we asked whether depriving subjects of external visual stimuli during daytime would lead to regional changes in slow waves during sleep and whether the degree of “internal visual stimulation” (spontaneous imagery) would influence such changes. In two 8-h sessions spaced 1 wk apart, 12 healthy volunteers either were blindfolded while listening to audiobooks or watched movies (control condition), after which their sleep was recorded with high-density EEG. We found that during NREM sleep, the number of small, local slow waves in the occipital cortex decreased after listening with blindfolding relative to movie watching in a way that depended on the degree of visual imagery subjects reported during blindfolding: subjects with low visual imagery showed a significant reduction of occipital sleep slow waves, whereas those who reported a high degree of visual imagery did not. We also found a positive relationship between the reliance on visual imagery during blindfolding and audiobook listening and the degree of correlation in sleep SWA between visual areas and language-related areas. These preliminary results demonstrate that short-term alterations in visual experience may trigger slow-wave changes in cortical visual areas. Furthermore, they suggest that plasticity-related EEG changes during sleep may reflect externally induced (“bottom up”) visual experiences, as well as internally generated (“top down”) processes.NEW & NOTEWORTHY Previous work has shown that slow-wave activity, a marker of sleep depth, is linked to neural plasticity in the sensorimotor cortex. We show that after short-term visual deprivation, subjects who reported little visual imagery had a reduced incidence of occipital slow waves. This effect was absent in subjects who reported strong spontaneous visual imagery. These findings suggest that visual imagery may “substitute” for visual perception and induce similar changes in non-rapid eye movement slow waves.

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

Slow Wave Activity Related to Working Memory Maintenance in the N-Back Task

2016 ◽  
Vol 30 (4) ◽  
pp. 141-154 ◽  
Author(s):  
Kira Bailey ◽  
Gregory Mlynarczyk ◽  
Robert West
Keyword(s):  
Working Memory ◽  
Slow Wave ◽  
Time Course ◽  
Relevant Information ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Response Accuracy ◽  
Functional Neuroanatomy ◽  
Stimulus Interval ◽  
Back Task

Abstract. Working memory supports our ability to maintain goal-relevant information that guides cognition in the face of distraction or competing tasks. The N-back task has been widely used in cognitive neuroscience to examine the functional neuroanatomy of working memory. Fewer studies have capitalized on the temporal resolution of event-related brain potentials (ERPs) to examine the time course of neural activity in the N-back task. The primary goal of the current study was to characterize slow wave activity observed in the response-to-stimulus interval in the N-back task that may be related to maintenance of information between trials in the task. In three experiments, we examined the effects of N-back load, interference, and response accuracy on the amplitude of the P3b following stimulus onset and slow wave activity elicited in the response-to-stimulus interval. Consistent with previous research, the amplitude of the P3b decreased as N-back load increased. Slow wave activity over the frontal and posterior regions of the scalp was sensitive to N-back load and was insensitive to interference or response accuracy. Together these findings lead to the suggestion that slow wave activity observed in the response-to-stimulus interval is related to the maintenance of information between trials in the 1-back task.

scholarly journals Electroencephalogram During Sleep in the Cat: Age Effects on Slow-Wave Activity

SLEEP ◽  
1984 ◽  
Vol 7 (4) ◽  
pp. 380-385 ◽  
Author(s):  
S. Scott Bowersox ◽  
Tom Floyd ◽  
William C. Dement
Keyword(s):  
Slow Wave ◽  
Wave Activity ◽  
Age Effects ◽  
Slow Wave Activity

Spatial intralobar correlation of spike and slow wave activity localisations in focal epilepsies: A MEG analysis

NeuroImage ◽  
2007 ◽  
Vol 34 (4) ◽  
pp. 1466-1472 ◽  
Author(s):  
M. Kaltenhäuser ◽  
G. Scheler ◽  
S. Rampp ◽  
A. Paulini ◽  
H. Stefan
Keyword(s):  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity

Reduced Verbal Learning Associated With Posterior Temporal Lobe Slow Wave Activity

2007 ◽  
Vol 33 (1) ◽  
pp. 25-43 ◽  
Author(s):  
Paul S. Foster ◽  
David W. Harrison ◽  
Gregory P. Crucian ◽  
Valeria Drago ◽  
Robert D. Rhodes ◽  
...  
Keyword(s):  
Temporal Lobe ◽  
Slow Wave ◽  
Verbal Learning ◽  
Wave Activity ◽  
Slow Wave Activity

scholarly journals Early recovery of frontal EEG slow wave activity during propofol sedation predicts outcome after cardiac arrest

Resuscitation ◽  
2021 ◽  
Author(s):  
Jukka Kortelainen ◽  
Tero Ala-Kokko ◽  
Marjaana Tiainen ◽  
Daniel Strbian ◽  
Kirsi Rantanen ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Early Recovery ◽  
Propofol Sedation
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