keyword
MENU ▼
Read by QxMD icon Read
search

Quantitative eeg

keyword
https://www.readbyqxmd.com/read/28512438/are-neurodynamic-organizations-a-fundamental-property-of-teamwork
#1
Ronald H Stevens, Trysha L Galloway
When performing a task it is important for teams to optimize their strategies and actions to maximize value and avoid the cost of surprise. The decisions teams make sometimes have unintended consequences and they must then reorganize their thinking, roles and/or configuration into corrective structures more appropriate for the situation. In this study we ask: What are the neurodynamic properties of these reorganizations and how do they relate to the moment-by-moment, and longer, performance-outcomes of teams?...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28512066/use-of-electroencephalography-brain-computer-interface-systems-as-a-rehabilitative-approach-for-upper-limb-function-after-a-stroke-a-systematic-review
#2
REVIEW
Esther Monge-Pereira, Jaime Ibañez-Pereda, Isabel M Alguacil-Diego, Jose I Serrano, María P Spottorno-Rubio, Francisco Molina-Rueda
BACKGROUND: Brain computer interface (BCI) systems have been suggested as a promising tool for neurorehabilitation. However, to date, there is a lack of homogeneous findings. Furthermore, no systematic reviews have analyzed the degree of validation of these interventions for upper limb (UL) motor rehabilitation post-stroke. OBJECTIVES: To compile all available studies that assess an UL intervention based on an electroencephalography (EEG) - BCI system in stroke...
May 13, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28504334/advances-in-functional-brain-imaging-technology-and-developmental-neuro-psychology-their-applications-in-the-jungian-analytic-domain
#3
Leon Petchkovsky
Analytical psychology shares with many other psychotherapies the important task of repairing the consequences of developmental trauma. The majority of analytic patients come from compromised early developmental backgrounds: they may have experienced neglect, abuse, or failures of empathic resonance from their carers. Functional brain imagery techniques including Quantitative Electroencephalogram (QEEG), and functional Magnetic Resonance Imagery (fMRI), allow us to track mental processes in ways beyond verbal reportage and introspection...
June 2017: Journal of Analytical Psychology
https://www.readbyqxmd.com/read/28503211/delta-rhythmicity-is-a-reliable-eeg-biomarker-in-angelman-syndrome-a-parallel-mouse-and-human-analysis
#4
Michael S Sidorov, Gina M Deck, Marjan Dolatshahi, Ronald L Thibert, Lynne M Bird, Catherine J Chu, Benjamin D Philpot
BACKGROUND: Clinicians have qualitatively described rhythmic delta activity as a prominent EEG abnormality in individuals with Angelman syndrome, but this phenotype has yet to be rigorously quantified in the clinical population or validated in a preclinical model. Here, we sought to quantitatively measure delta rhythmicity and evaluate its fidelity as a biomarker. METHODS: We quantified delta oscillations in mouse and human using parallel spectral analysis methods and measured regional, state-specific, and developmental changes in delta rhythms in a patient population...
2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28501751/the-state-of-everyday-quantitative-eeg-use-in-canada-a-national-technologist-survey
#5
Marcus C Ng, Kara Gillis
PURPOSE: This study sought to determine the state of quantitative EEG (QEEG) use in Canada, as QEEG may provide a partial solution to the issue of escalating EEG demand against insufficient health care resources. METHODS: A 10-item survey questionnaire was administered to participants at the annual meeting of the Canadian Association of Electroneurophysiology Technologists, which was held in parallel with the annual meeting of the Canadian Neurological Sciences Federation...
May 5, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28492522/impact-of-brain-injury-on-functional-measures-of-amplitude-integrated-eeg-at-term-equivalent-age-in-premature-infants
#6
N M El Ters, Z A Vesoulis, S M Liao, C D Smyser, A M Mathur
OBJECTIVE: To evaluate the association between qualitative and quantitative amplitude-integrated EEG (aEEG) measures at term equivalent age (TEA) and brain injury on magnetic resonance imaging (MRI) in preterm infants. STUDY DESIGN: A cohort of premature infants born at <30 weeks of gestation and with moderate-to-severe MRI injury on a TEA MRI scan was identified. A contemporaneous group of gestational age-matched control infants also born at <30 weeks of gestation with none/mild injury on MRI was also recruited...
May 11, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28491494/the-relationship-between-morphological-lesion-magnetic-source-imaging-and-intracranial-stereo-electroencephalography-in-focal-cortical-dysplasia
#7
Romain Bouet, François Mauguière, Sébastien Daligault, Jean Isnard, Marc Guenot, Olivier Bertrand, Julien Jung
Magnetoencephalography (MEG) is a useful non-invasive technique for presurgical evaluation of focal cortical dysplasia patients. We aimed at clarifying the precise spatial relationship between the spiking volume determined with MEG, the seizure onset zone and the lesional volume in patients with focal cortical dysplasia. We studied the spatial relationships between the MEG spiking volume determined with a recent analysis pipeline, the seizure-onset zone location determined with a quantitative index calculated from intracranial EEG signals ('Epileptogenicity Index') and the lesional volume delineated on brain MRI in 11 patients with Focal Cortical Dysplasia explored with Stereo-electroencephalography (SEEG)...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28487643/perceptual-threshold-level-for-the-tactile-stimulation-and-response-features-of-erd-ers-based-specific-indices-upon-changes-in-high-frequency-vibrations
#8
Mi-Hyun Choi, Boseong Kim, Hyung-Sik Kim, Seon-Young Gim, Woo-Ram Kim, Soon-Cheol Chung
This study was conducted to identify characteristics of the perceptual threshold level and electroencephalogram (EEG) responses to vibrotactile stimulations at various high frequencies, and to examine the possibility of distinguishing vibrotactile stimulations by frequency through such response characteristics. The vibrotactile stimulations of six frequencies (150, 200, 225, 250, 275 and 300 Hz) were exerted on the first joint of the right index finger. The perceptual threshold level was defined as the first minimum perceived intensity when the intensity stimulation was exerted step by step at each vibration frequency...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28486575/burst-suppression-ratio-underestimates-absolute-duration-of-electroencephalogram-suppression-compared-with-visual-analysis-of-intraoperative-electroencephalogram
#9
W G Muhlhofer, R Zak, T Kamal, B Rizvi, L P Sands, M Yuan, X Zhang, J M Leung
Background: Machine-generated indices based on quantitative electroencephalography (EEG), such as the patient state index (PSI™) and burst-suppression ratio (BSR), are increasingly being used to monitor intraoperative depth of anaesthesia in the endeavour to improve postoperative neurological outcomes, such as postoperative delirium (POD). However, the accuracy of the BSR compared with direct visualization of the EEG trace with regard to the prediction of POD has not been evaluated previously...
May 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28484928/comparison-of-quantitative-characteristics-of-early-post-resuscitation-eeg-between-asphyxial-and-ventricular-fibrillation-cardiac-arrest-in-rats
#10
Bihua Chen, Gang Chen, Chenxi Dai, Pei Wang, Lei Zhang, Yuanyuan Huang, Yongqin Li
BACKGROUND: Quantitative electroencephalogram (EEG) analysis has shown promising results in studying brain injury and functional recovery after cardiac arrest (CA). However, whether the quantitative characteristics of EEG, as potential indicators of neurological prognosis, are influenced by CA causes is unknown. The purpose of this study was designed to compare the quantitative characteristics of early post-resuscitation EEG between asphyxial CA (ACA) and ventricular fibrillation CA (VFCA) in rats...
May 8, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28483096/electroencephalogram-alpha-to-theta-ratio-over-left-fronto-temporal-region-correlates-with-negative-symptoms-in-schizophrenia
#11
Sayantanava Mitra, Shamsul Haque Nizamie, Nishant Goyal, Sai Krishna Tikka
BACKGROUND: Negative symptoms impair outcomes on occupational functioning, social interaction and interpersonal relationships in patients with schizophrenia. Past researchers have reported reduced alpha and increased theta and delta spectral powers on quantitative EEG recordings in those with prominent negative symptoms. AIM: Present analysis aimed at exploring the relationships between lower-frequency EEG powers and negative symptoms, in schizophrenia, over a period of naturalistic antipsychotic treatment...
April 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/28482056/rem-sleep-eeg-instability-in-rem-sleep-behavior-disorder-and-clonazepam-effects
#12
Raffaele Ferri, Francesco Rundo, Alessandro Silvani, Marco Zucconi, Oliviero Bruni, Luigi Ferini-Strambi, Giuseppe Plazzi, Mauro Manconi
Study Objectives: We aimed to analyze quantitatively REM sleep EEG in controls, drug-naïve idiopathic REM sleep behavior disorder patients (iRBD), and iRBD patients treated with clonazepam. Methods: Twenty-nine drug-naïve iRBD patients (mean age 68.2 years), 14 iRBD patients under chronic clonazepam therapy (mean age 66.3 years) and 21 controls (mean age 66.8 years) were recruited. Power spectra were obtained from sleep EEG (central derivation), using a 2-second sliding window, with 1-second steps...
May 6, 2017: Sleep
https://www.readbyqxmd.com/read/28473649/development-of-relative-disparity-sensitivity-in-human-visual-cortex
#13
Anthony M Norcia, Holly Gerhard, Wesley Meredith
Stereopsis is the primary cue underlying our ability to make fine depth judgments. In adults, depth discriminations are supported largely by relative rather than absolute binocular disparity, and depth is perceived primarily for horizontal rather than vertical disparities. Although human infants begin to exhibit disparity-specific responses between three and five months of age, it is not known how relative disparity mechanisms develop. Here we show that the specialization for relative disparity is highly immature in four- to six-month-old infants but is adult-like in four- to seven-year-old children...
May 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28470675/early-prediction-of-coma-recovery-after-cardiac-arrest-with-blinded-pupillometry
#14
Daria Solari, Andrea O Rossetti, Laurent Carteron, John-Paul Miroz, Jan Novy, Philippe Eckert, Mauro Oddo
Objectives Prognostication studies on comatose cardiac arrest (CA) patients are limited by lack of blinding, potentially causing overestimation of outcome predictors and self-fulfilling prophecy. Using a blinded approach, we analysed the value of quantitative automated pupillometry to predict neurological recovery after CA. Methods We examined a prospective cohort of 103 comatose adult patients who were unconscious 48 hours after CA and underwent repeated measurements of quantitative pupillary light reflex (PLR) using the Neurolight-Algiscan® device...
May 3, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28467487/is-functional-brain-connectivity-atypical-in-autism-a-systematic-review-of-eeg-and-meg-studies
#15
Christian O'Reilly, John D Lewis, Mayada Elsabbagh
BACKGROUND: Although it is well recognized that autism is associated with altered patterns of over- and under-connectivity, specifics are still a matter of debate. Little has been done so far to synthesize available literature using whole-brain electroencephalography (EEG) and magnetoencephalography (MEG) recordings. OBJECTIVES: 1) To systematically review the literature on EEG/MEG functional and effective connectivity in autism spectrum disorder (ASD), 2) to synthesize and critically appraise findings related with the hypothesis that ASD is characterized by long-range underconnectivity and local overconnectivity, and 3) to provide, based on the literature, an analysis of tentative factors that are likely to mediate association between ASD and atypical connectivity (e...
2017: PloS One
https://www.readbyqxmd.com/read/28449561/differences-in-resting-state-quantitative-electroencephalography-patterns-in-attention-deficit-hyperactivity-disorder-with-or-without-comorbid-symptoms
#16
Jun Won Kim, Soo Yeon Kim, Jae-Won Choi, Kyoung Min Kim, Sojeong Hannah Nam, Kyung Joon Min, Young Sik Lee, Tae Young Choi
Objective: The aim of the present study was to evaluate the role of comorbid psychiatric symptoms on quantitative electroencephalogram (QEEG) activities in boys with the attention deficit/hyperactivity disorder (ADHD). Methods: All participants were male students in the second, third or fourth grade in elementary school. Therefore, there were no significant differences in age or sex. Participants with ADHD were assigned to one of three groups: pure ADHD (n=22), ADHD with depressive symptoms (n=11), or ADHD with problematic internet use (n=19)...
May 31, 2017: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28431290/predicting-success-of-vagus-nerve-stimulation-vns-from-eeg-symmetry
#17
REVIEW
Janneke Hilderink, Marleen C Tjepkema-Cloostermans, Anita Geertsema, Janita Glastra-Zwiers, Cecile C de Vos
PURPOSE: Vagus nerve stimulation (VNS) has shown to be an effective treatment for drug resistant epilepsy, with achieving more than 50% seizure reduction in one third of the treated patients. In order to predict which patients will profit from VNS, we previously found that a low pairwise derived Brain Symmetry Index (pdBSI) could potentially predict good responders to VNS treatment. These findings however have to be validated before they can be generalized. METHODS: 39 patients (age 18-68 years) with medically intractable epilepsy who were referred for an implanted VNS system were included...
April 4, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28430695/cerebral-recovery-index-reliable-help-for-prediction-of-neurologic-outcome-after-cardiac-arrest
#18
Marleen C Tjepkema-Cloostermans, Jeannette Hofmeijer, Albertus Beishuizen, Harold W Hom, Michiel J Blans, Frank H Bosch, Michel J A M van Putten
OBJECTIVE: Early electroencephalography measures contribute to outcome prediction of comatose patients after cardiac arrest. We present predictive values of a new cerebral recovery index, based on a combination of quantitative electroencephalography measures, extracted every hour, and combined by the use of a random forest classifier. DESIGN: Prospective observational cohort study. SETTING: Medical ICU of two large teaching hospitals in the Netherlands...
April 20, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28414968/investigating-the-correlation-between-short-term-effectiveness-of-vns-therapy-in-reducing-the-severity-of-seizures-and-long-term-responsiveness
#19
Maryam Ravan
VNS (Vagus Nerve Stimulation) Therapy(®) is an adjunctive therapy for patients with medically refractory epilepsy. The primary metric used to assess response to any treatment for epilepsy is seizure frequency reduction as measured using seizure diaries. In addition to seizure frequency, reduction in seizure severity is clinically meaningful to patients and can be measured objectively. Analysis of electro-encephalographic (EEG) signals has revealed that seizures are accompanied by spatial synchronization of EEG electrodes that may persist for several minutes after the seizure...
April 11, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28412953/quantification-of-task-dependent-cortical-activation-evoked-by-robotic-continuous-wrist-joint-manipulation-in-chronic-hemiparetic-stroke
#20
Martijn P Vlaar, Teodoro Solis-Escalante, Julius P A Dewald, Erwin E H van Wegen, Alfred C Schouten, Gert Kwakkel, Frans C T van der Helm
BACKGROUND: Cortical damage after stroke can drastically impair sensory and motor function of the upper limb, affecting the execution of activities of daily living and quality of life. Motor impairment after stroke has been thoroughly studied, however sensory impairment and its relation to movement control has received less attention. Integrity of the somatosensory system is essential for feedback control of human movement, and compromised integrity due to stroke has been linked to sensory impairment...
April 17, 2017: Journal of Neuroengineering and Rehabilitation
keyword
keyword
69068
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"