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Dynamic coupling between the central and autonomic nervous systems during sleep: A review
2018
Neuroscience and Biobehavioral Reviews
Assessment of ANS during sleep Polysomnography (PSG) is the gold-standard method to objectively assess sleep using multiple sources of information. ...
Automated quantitative EEG analysis has the potential to overcome limitations inherent in visual scoring and provides continuous and detailed information on the state of cortical activation and EEG complexity ...
The content is solely the responsibility of the authors and does not necessarily represent the official views of the funding agencies. ...
doi:10.1016/j.neubiorev.2018.03.027
pmid:29608990
pmcid:PMC5993613
fatcat:cfackd2gwrgqfoejddtgwkxhg4
Disorders of Arousal in adults: new diagnostic tools for clinical practice
2019
Sleep Science and Practice
Our article focuses on the DOA diagnostic process describing accurately the newest DOA clinical, EEG and videopolysomnographic tools in order to aid clinicians in DOA assessment. ...
Disorders of Arousal (DOA) are mental and motor behaviors arising from NREM sleep. ...
Authors' contributions GL, RL, YD, FP, conceived of the study, participated in its design and coordination, performed a literature search and helped to draft the manuscript. ...
doi:10.1186/s41606-019-0037-3
fatcat:x6l5orhvrzcpxjjbn4wpeqlfsy
Quantifying Cortical EEG Responses to TMS in (Un)consciousness
2014
Clinical EEG and Neuroscience
These studies invariably show that the complexity of the cortical response to TMS collapses when consciousness is lost during deep sleep, anesthesia and vegetative state following severe brain injury, ...
Here we review a series of recent studies in which Transcranial Magnetic Stimulation combined with electroencephalography (TMS/EEG) has been employed to quantify brain complexity in wakefulness and during ...
Funding This study was funded by the Belgian National ...
doi:10.1177/1550059413513723
pmid:24403317
fatcat:czlj34wmhffijgk4fa6epdjdjy
Electroencephalogram characteristics of autonomic arousals during sleep in healthy men
2006
Clinical Neurophysiology
We evaluated the temporal relation between heart rate (HR) changes, an index of autonomic activation, and EEG in seven healthy subjects during sleep. ...
Methods-We identified bouts of tachycardia-bradycardia and performed spectral analysis of EEG during these. We also identified cortical arousals by the appearance of EEG alpha activity. ...
Despite these limitations, however, the data presented here do suggest that assessment of HR changes during sleep might be a useful tool in assessing arousals during sleep. ...
doi:10.1016/j.clinph.2006.07.314
pmid:17011823
pmcid:PMC2289770
fatcat:ggw5dlhu2ff77dkj7ztkcljz3a
NREM Sleep EEG Characteristics Correlate to the Mild Cognitive Impairment in Patients with Parkinsonism
2021
BioMed Research International
This suggested that altered EEG activity during NREM sleep is associated with MCI in patients with PDS. NREM sleep EEG characteristics of the power spectral analysis and DFA correlate to MCI. ...
Slowing of EEG activity during NREM sleep may reflect contribution to the decline in NREM physiological function and is therefore a marker in patients with PDS-MCI. ...
Acknowledgments We would like to express our appreciation to all the staff involved in the sleep study and cognitive assessment of PDS patients.
Supplementary Materials Supplementary Figure. ...
doi:10.1155/2021/5561974
pmid:34350292
pmcid:PMC8328717
fatcat:wurgpepr3vhcdejf6nwjl52wxi
Interhemispheric differences of sleep EEG complexity
1996
Acta Neurobiologiae Experimentalis
Complexity of EEG (omega), a global measure reflecting degree of spatial synchronization, was computed for whole night recordings of sleep EEG of 10 healthy volunteers, 9 males and 1 female (age 21-53) ...
In healthy subjects the complexity was higher over the right hemisphere during waking, and the difference shifted to higher complexity over the left hemisphere in slow wave sleep (F = 5.15, df1 = 4, df2 ...
These two measures assess the properties of EEG in traditional dimensions; they are multichannel analogs of Hjorth's descriptors of activity and mobility, respectively. ...
pmid:9033131
fatcat:sp5iekspxzdbll4n6eqq6jswsu
EEG Patterns Prior to Motor Activations of Parasomnias: A Systematic Review
2021
Nature and Science of Sleep
Non-rapid eye movement (NREM) parasomnias are defined as abnormal nocturnal behaviors that typically arise from the NREM sleep stage 3 during the first sleep cycle. ...
the onset of activations. ...
compared to an EEG segment of healthy subjects, chosen from the same sleep cycle and stage. ...
doi:10.2147/nss.s306614
pmid:34113199
pmcid:PMC8184251
fatcat:wigwoq3x6rgxvpodgi2jqtx5l4
Sleep misperception, EEG characteristics and Autonomic Nervous System activity in primary insomnia: A retrospective study on polysomnographic data
2014
International Journal of Psychophysiology
EEG activity: K-complexes and sleep spindles K-complexes and sleep spindles, as the hallmarks of Stage2 sleep, are suggested to be sleep-protective mechanisms (e.g. ...
During sleep, a greater power ratio of high frequency EEG activity relative to low frequency EEG activity is assumed to give an indication of 'worse' sleep and is associated with sleep complaints of some ...
doi:10.1016/j.ijpsycho.2013.10.012
pmid:24177246
fatcat:n3p75uhrgzddhc3u5qpwhsdk2e
Electroencephalographic profiles for differentiation of disorders of consciousness
2013
BioMedical Engineering OnLine
, and automatically construct profiles of their time evolution, relevant to the assessment of residual brain function in patients with DOC. ...
Methods: Starting with matching pursuit (MP) decomposition, we automatically detect and parametrize sleep spindles, slow wave activity, K-complexes and alpha, beta and theta waves present in EEG recordings ...
This decomposition was computed using the 5th version (mp5) of the matching pursuit software, developed at the University of Warsaw. It can be downloaded from http://braintech.pl/svarog. ...
doi:10.1186/1475-925x-12-109
pmid:24143892
pmcid:PMC3819687
fatcat:qdmi6zx34fdpnhbzbusm4aqs54
Neurophysiologic assessment of brain maturation after an 8-week trial of skin-to-skin contact on preterm infants
2009
Clinical Neurophysiology
Analyses of EEG-sleep studies can compare functional brain maturation between SSC and non-SSC cohorts. ...
Fewer REMs, greater arousals and more quiet sleep were noted for SSC infants compared with the non-SSC preterms at term. Three right hemispheric regions had greater complexity in the SSC group. ...
Acknowledgments Financial Support: This study was supported in part by NR04926, NR08587, NS26793 from the National Institutes of Health. ...
doi:10.1016/j.clinph.2009.08.004
pmid:19766056
pmcid:PMC2928473
fatcat:askfaee3mbfe5oabevxqx44xou
Can Daytime Transcranial Direct Current Stimulation Treatment Change the Sleep Electroencephalogram Complexity of REM Sleep in Depressed Patients? A Double-Blinded, Randomized, Placebo-Controlled Trial
2022
Frontiers in Psychiatry
Hamilton-24 and Montgomery scales were used to assess the severity of depression, and polysomnography (PSG) was used to assess sleep structure and EEG complexity. ...
The sample entropy of the cumulative sum of the IMFs were computed to acquire high-dimensional multi-scale complexity information of EEG signals.ResultsThe complexity of Rapid Eye Movement (REM) EEG signals ...
ACKNOWLEDGMENTS We thank Zhuang Yue from Peking University for supporting data analysis. ...
doi:10.3389/fpsyt.2022.851908
pmid:35664468
pmcid:PMC9157570
fatcat:re6al65o2zhvxmn5i3rb544som
Human Thalamic and Cortical Activities Assessed by Dimension of Activation and Spectral Edge Frequency During Sleep Wake Cycles
2007
Sleep
Ryvlin for the opportunity to study their patients and to M. Guénot for stereotactic electrode implantations. ...
Increased complexity in the brain state is associated with elevated DA levels. During sleep, EEG is less complex than during wakefulness and DA is lower. ...
The passage from wakefulness to light (lSWS) and deep (dSWS) slow wave sleep (SWS) is characterized by a progressive slowing of the EEG, more or less associated with transient elements (spindle; K complex ...
doi:10.1093/sleep/30.7.907
pmid:17682662
pmcid:PMC1978370
fatcat:z543jj4msbbsngxl2p4gwpfli4
Different Phase Relationships Between EEG Frequency Bands During NREM and REM Sleep
1997
Sleep
The results indicate the complexity of the interrelation of the different frequency bands depending on sleep state, with lowand high-frequency bands being out of phase during NREM and in phase during REM ...
Phase relationships between distinct frequency bands of the sleep electroencephalogram (EEG) were studied in healthy subjects using cross-correlation coefficients, both over the entire night and separately ...
Our findings indicate the complexity of the interrelation of the different frequency bands with sleep state. ...
doi:10.1093/sleep/20.9.753
pmid:9406328
fatcat:3kknni54prgk7e2noq7ntzssfy
Scale-Free Dynamics of the Mouse Wakefulness and Sleep Electroencephalogram Quantified Using Wavelet-Leaders
2018
Clocks & Sleep
Scale-free analysis of brain activity reveals a complexity of synchronous neuronal firing which is different from that assessed using classic rhythmic quantifications such as spectral analysis of the electroencephalogram ...
In humans, scale-free activity of the EEG depends on the behavioral state and reflects cognitive processes. ...
This work has benefited from discussions with S. Jaffard, E. Wendt and P. Abry concerning the Wavelet-Leaders formalism and the use of the WLBMF MATLAB toolbox. ...
doi:10.3390/clockssleep1010006
pmid:33089154
pmcid:PMC7509677
fatcat:yd72ar4jqjbyxjt2vnzdwls2ky
Interplay between spontaneous and induced brain activity during human non-rapid eye movement sleep
2011
Proceedings of the National Academy of Sciences of the United States of America
., and P.M. wrote the paper. The authors declare no conflict of interest. Freely available online through the PNAS open access option. 1 T.T.D.-V. and M. Bonjean contributed equally to this work. ...
Brain responses to the two-tone categories (TS and TN) were then assessed in comparison with the baseline activity of S2-3 sleep. ...
Finally, we show that sounds during NREM sleep induce a larger activation of the primary auditory cortex when they are followed by an induced K complex. ...
doi:10.1073/pnas.1112503108
pmid:21896732
pmcid:PMC3174676
fatcat:e5nahs56evdbdch24g6c2buutm
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