keyword
MENU ▼
Read by QxMD icon Read
search

Continuous eeg

keyword
https://www.readbyqxmd.com/read/27931004/increasing-trend-of-wearables-and-multimodal-interface-for-human-activity-monitoring-a-review
#1
REVIEW
Preeti Kumari, Lini Mathew, Poonal Syal
Activity recognition technology is one of the most important technologies for life-logging and for the care of elderly persons. Elderly people prefer to live in their own houses, within their own locality. If, they are capable to do so, several benefits can follow in terms of society and economy. However, living alone may have high risks. Wearable sensors have been developed to overcome these risks and these sensors are supposed to be ready for medical uses. It can help in monitoring the wellness of elderly persons living alone by unobtrusively monitoring their daily activities...
December 2, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27930672/brain-connectivity-variation-topography-associated-with-working-memory
#2
Xiaofei Ma, Xiaolin Huang, Yun Ge, Yueming Hu, Wei Chen, Aili Liu, Hongxing Liu, Ying Chen, Bin Li, Xinbao Ning
Brain connectivity analysis plays an essential role in the research of working memory that involves complex coordination of various brain regions. In this research, we present a comprehensive view of trans-states brain connectivity variation based on continuous scalp EEG, extending beyond traditional stimuli-lock averaging or restriction to short time scales of hundreds of milliseconds after stimulus onset. The scalp EEG was collected under three conditions: quiet, memory, and control. The only difference between the memory and control conditions was that in the memory condition, subjects made an effort to retain information...
2016: PloS One
https://www.readbyqxmd.com/read/27930420/performance-of-spectrogram-based-seizure-identification-of-adult-eegs-by-critical-care-nurses-and-neurophysiologists
#3
Edilberto Amorim, Craig A Williamson, Lidia M V R Moura, Mouhsin M Shafi, Nicolas Gaspard, Eric S Rosenthal, Mary M Guanci, Venkatakrishna Rajajee, M Brandon Westover
INTRODUCTION: Continuous EEG screening using spectrograms or compressed spectral arrays (CSAs) by neurophysiologists has shorter review times with minimal loss of sensitivity for seizure detection when compared with visual analysis of raw EEG. Limited data is available on the performance characteristics of CSA-based seizure detection by neurocritical care nurses. METHODS: This is a prospective, cross-sectional study that was conducted in two academic neurocritical care units and involved thirty-three neurointensive care unit nurses and four neurophysiologists...
December 3, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27927806/sleep-neurophysiological-dynamics-through-the-lens-of-multitaper-spectral-analysis
#4
REVIEW
Michael J Prerau, Ritchie E Brown, Matt T Bianchi, Jeffrey M Ellenbogen, Patrick L Purdon
During sleep, cortical and subcortical structures within the brain engage in highly structured oscillatory dynamics that can be observed in the electroencephalogram (EEG). The ability to accurately describe changes in sleep state from these oscillations has thus been a major goal of sleep medicine. While numerous studies over the past 50 years have shown sleep to be a continuous, multifocal, dynamic process, long-standing clinical practice categorizes sleep EEG into discrete stages through visual inspection of 30-s epochs...
January 2017: Physiology
https://www.readbyqxmd.com/read/27922904/utilization-of-quantitative-eeg-trends-for-critical-care-continuous-eeg-monitoring-a-survey-of-neurophysiologists
#5
Christa B Swisher, Saurabh R Sinha
PURPOSE: Quantitative EEG (QEEG) can be used to assist with review of large amounts of data generated by critical care continuous EEG monitoring. This study aimed to identify current practices regarding the use of QEEG in critical care continuous EEG monitoring of critical care patients. METHODS: An online survey was sent to 796 members of the American Clinical Neurophysiology Society (ACNS), instructing only neurophysiologists to participate. RESULTS: The survey was completed by 75 neurophysiologists that use QEEG in their practice...
December 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27919590/rebuttal-to-the-manuscript-by-r-j-porter-epires-d-16-00150
#6
D G A Kasteleijn-Nolst Trenité
Development of new effective medicines for patients, who continue to have seizures or experience unwanted side-effects, is an important goal. The human "Photosensitivity Model", a POC study, helps to achieve this goal by providing accurate PharmacoKinetic / PharmcoDynamic (PK/PD) data in epilepsy patients at a very early stage and in a highly controlled, standardized and safe setting (in- hospital video-EEG photic stimulation tests and single-dose AED administration). All information referred to in this rebuttal is based on evidence and not on personal communication...
November 27, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27918343/stereo-eeg-implantation-strategy
#7
Giridhar P Kalamangalam, Nitin Tandon
Stereoelectroencephalography denotes the strategic placement of multiple depth electrodes for invasive localization of focal epilepsy in surgical patients. It differs significantly from the alternative subdural grid approach, in both conceptualization of partial epilepsy-as a 3-D distributed network, rather than as focal pathology with contiguous spread-and by the method of sampling used-which is sparse and directed rather than continuous over adjacent brain areas. The electrode implantation strategy in stereoelectroencephalography involves appreciation of these features, which are illustrated by four cases drawn from distinct electroclinical epilepsy syndromes...
December 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27913591/temporal-expectations-guide-dynamic-prioritization-in-visual-working-memory-through-attenuated-alpha-oscillations
#8
Freek van Ede, Marcel Niklaus, Anna C Nobre
: While working memory is generally considered a highly dynamic mnemonic store, popular laboratory tasks employed to understand its psychological and neural mechanisms (such as change detection and continuous reproduction) often remain relatively "static", involving the retention of a set number of items throughout a shared delay interval. In the current study, we investigated visual working memory in a more dynamic setting, and assessed: 1) whether internally guided temporal expectations can dynamically and reversibly prioritize individual mnemonic items at specific times at which they are deemed most relevant and 2) the neural substrates that support such dynamic prioritization...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27903639/automated-classification-of-pain-perception-using-high-density-electroencephalography-data
#9
Gaurav Misra, Wei-En Wang, Derek B Archer, Arnab Roy, Stephen A Coombes
Translating brief millisecond-long pain-eliciting stimuli to the subjective perception of pain is associated with changes in theta, alpha, beta, and gamma oscillations over sensorimotor cortex. However, when a pain-eliciting stimulus continues for minutes, regions beyond the sensorimotor cortex such as the prefrontal cortex are also engaged. Abnormalities in prefrontal cortex have been associated with chronic pain states, but conventional millisecond-long EEG paradigms do not engage prefrontal regions. In the current study we collected high-density EEG data during an experimental paradigm in which subjects experienced a 4 second low or high intensity pain-eliciting stimulus...
November 30, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27902711/eeg-to-primary-rewards-predictive-utility-and-malleability-by-brain-stimulation
#10
Nicole Prause, Greg J Siegle, Choi Deblieck, Allan Wu, Marco Iacoboni
Theta burst stimulation (TBS) is thought to affect reward processing mechanisms, which may increase and decrease reward sensitivity. To test the ability of TBS to modulate response to strong primary rewards, participants hypersensitive to primary rewards were recruited. Twenty men and women with at least two opposite-sex, sexual partners in the last year received two forms of TBS. Stimulations were randomized to avoid order effects and separated by 2 hours to reduce carryover. The two TBS forms have been demonstrated to inhibit (continuous) or excite (intermittent) the left dorsolateral prefrontal cortex using different pulse patterns, which links to brain areas associated with reward conditioning...
2016: PloS One
https://www.readbyqxmd.com/read/27894945/successful-treatment-of-refractory-status-epilepticus-using-anterior-thalamic-nuclei-deep-brain-stimulation
#11
Ching-Yi Lee, Siew-Na Lim, Tony Wu, Shih-Tseng Lee
BACKGROUND: Refractory status epilepticus(RSE) is considered a medical emergency in neurology and is related to a high mortality rate. We report a successfully treated case of RSE using deep brain stimulation (DBS) at the anterior thalamic nuclei (ATN). METHOD: Report concerning the resolution of RSE after DBS of the ATN in a 17-year-old woman RESULT: This patient developed RSE due to progressive seizure activity. RSE with generalized tonic-clonic seizures was noted two weeks prior to admission...
November 25, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27893511/continuous-infusion-antiepileptic-medications-for-refractory-status-epilepticus-a-review-for-nurses
#12
Adam L Wiss, Michael Samarin, Jacob Marler, G Morgan Jones
Status epilepticus requires treatment with emergent initial therapy with a benzodiazepine and urgent control therapy with an additional antiepileptic drug (AED) to terminate clinical and/or electrographic seizure activity. However, nearly one-third of patients will prove refractory to the aforementioned therapies and are prone to a higher degree of neuronal injury, resistance to pharmacotherapy, and death. Current guidelines for refractory status epilepticus (RSE) recommend initiating a continuous intravenous (CIV) anesthetic over bolus dosing with a different AED...
January 2017: Critical Care Nursing Quarterly
https://www.readbyqxmd.com/read/27891196/navigating-abstract-virtual-environment-an-eeg-study
#13
Alireza Mahdizadeh Hakak, Joydeep Bhattacharya, Nimish Biloria, Roy de Kleijn, Fanak Shah-Mohammadi
Perceptions of different environments are different for different people. An abstract designed environment, with a degree of freedom from any visual reference in the physical world requests a completely different perception than a fully or semi-designed environment that has some correlation with the physical world. Maximal evidence on the manner in which the human brain is involved/operates in dealing with such novel perception comes from neuropsychology. Harnessing the tools and techniques involved in the domain of neuropsychology, the paper presents nee evidence on the role of pre-central gyrus in the perception of abstract spatial environments...
December 2016: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/27890748/small-unruptured-intracranial-aneurysm-%C3%A2-5mm-associated-with-epilepsy-report-of-2-cases-and-literature-review
#14
Fuxin Lin, Hui Wan, Dezhi Kang, Yuanxiang Lin
BACKGROUND: Due to the continuing improvements in imaging technology, an increasing number of epileptogenic small (≤5mm) unruptured intracranial aneurysms (sUIA) are being diagnosed since 2000. However, they are not systematically described and reviewed until now. CASE DESCRIPTION AND THE LITERATURE REVIEW: We reported 2 patients with sUIA who initially presented with complex partial seizures (CPS). Scalp electroencephalography (EEG) showed the seizures activity arising from the mesial temporal/frontal areas, but conventional magnetic resonance imaging (MRI) scans were normal in both patients...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27883068/-cerebellar-contribution-to-visuo-attentional-alpha-rhythm-insights-from-weightlessness
#15
A M Cebolla, M Petieau, B Dan, L Balazs, J McIntyre, G Cheron
Human brain adaptation in weightlessness follows the necessity to reshape the dynamic integration of the neural information acquired in the new environment. This basic aspect was here studied by the electroencephalogram (EEG) dynamics where oscillatory modulations were measured during a visuo-attentional state preceding a visuo-motor docking task. Astronauts in microgravity conducted the experiment in free-floating aboard the International Space Station, before the space flight and afterwards. We observed stronger power decrease (~ERD: event related desynchronization) of the ~10 Hz oscillation from the occipital-parietal (alpha ERD) to the central areas (mu ERD)...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27882594/-cuts-in-action-a-high-density-eeg-study-investigating-the-neural-correlates-of-different-editing-techniques-in-film
#16
Katrin S Heimann, Sebo Uithol, Marta Calbi, Maria A Umiltà, Michele Guerra, Vittorio Gallese
In spite of their striking differences with real-life perception, films are perceived and understood without effort. Cognitive film theory attributes this to the system of continuity editing, a system of editing guidelines outlining the effect of different cuts and edits on spectators. A major principle in this framework is the 180° rule, a rule recommendation that, to avoid spectators' attention to the editing, two edited shots of the same event or action should not be filmed from angles differing in a way that expectations of spatial continuity are strongly violated...
November 24, 2016: Cognitive Science
https://www.readbyqxmd.com/read/27880966/age-dependency-of-location-of-epileptic-foci-in-continuous-spike-and-waves-during-sleep-a-parallel-to-the-posterior-anterior-trajectory-of-slow-wave-activity
#17
Bigna Katrin Bölsterli Heinzle, Thomas Bast, Hanne Critelli, Reto Huber, Bernhard Schmitt
Background Epileptic encephalopathy with continuous spike-and-waves during sleep (CSWS) occurs during childhood and is characterized by an activation of spike wave complexes during slow wave sleep. The location of epileptic foci is variable, as is etiology. A relationship between the epileptic focus and age has been shown in various focal epilepsies following a posterior-anterior trajectory, and a link to brain maturation has been proposed.We hypothesize that in CSWS, maximal spike wave activity, corresponding to the epileptic focus, is related to age and shows a posterior-anterior evolution...
November 23, 2016: Neuropediatrics
https://www.readbyqxmd.com/read/27872899/de-novo-fgf12-mutation-in-2-patients-with-neonatal-onset-epilepsy
#18
Ilaria Guella, Linda Huh, Marna B McKenzie, Eric B Toyota, E Martina Bebin, Michelle L Thompson, Gregory M Cooper, Daniel M Evans, Sarah E Buerki, Shelin Adam, Margot I Van Allen, Tanya N Nelson, Mary B Connolly, Matthew J Farrer, Michelle Demos
OBJECTIVE: We describe 2 additional patients with early-onset epilepsy with a de novo FGF12 mutation. METHODS: Whole-exome sequencing was performed in 2 unrelated patients with early-onset epilepsy and their unaffected parents. Genetic variants were assessed by comparative trio analysis. Clinical evolution, EEG, and neuroimaging are described. The phenotype and response to treatment was reviewed and compared to affected siblings in the original report. RESULTS: We identified the same FGF12 de novo mutation reported previously (c...
December 2016: Neurology. Genetics
https://www.readbyqxmd.com/read/27869460/correction-to-tsypes-et-al-2016
#19
(no author information available yet)
Reports an error in "Neural Responses to Gains and Losses in Children of Suicide Attempters" by Aliona Tsypes, Max Owens, Greg Hajcak and Brandon E. Gibb (Journal of Abnormal Psychology, Advanced Online Publication, Nov 3, 2016, np). In the original article, Figure 1 had incorrect axis labels. There was also an error in the abstract, which did not state that ΔFN was calculated as FN to losses minus FN to gains. All versions of this article have been corrected. (The following abstract of the original article appeared in record 2016-53087-001...
November 21, 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27867719/monitoring-cerebral-oxygenation-and-local-field-potential-with-a-variation-of-isoflurane-concentration-in-a-rat-model
#20
Dong-Hyuk Choi, Teo Jeon Shin, Seonghyun Kim, Jayyoung Bae, Dongrae Cho, Jinsil Ham, Ji-Young Park, Hyoung-Ihl Kim, Seongwook Jeong, Boreom Lee, Jae Gwan Kim
We aimed to investigate experimentally how anesthetic levels affect cerebral metabolism measured by near-infrared spectroscopy (NIRS) and to identify a robust marker among NIRS parameters to discriminate various stages of anesthetic depth in rats under isoflurane anesthesia. In order to record the hemodynamic changes and local field potential (LFP) in the brain, fiber-optic cannulae and custom-made microelectrodes were implanted in the frontal cortex of the skull. The NIRS and LFP signals were continuously monitored before, during and after isoflurane anesthesia...
October 1, 2016: Biomedical Optics Express
keyword
keyword
50265
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"