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Quantitative eeg

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https://www.readbyqxmd.com/read/29781187/eeg-oscillations-during-caress-like-affective-haptic-elicitation
#1
Gaetano Valenza, Alberto Greco, Matteo Bianchi, Mimma Nardelli, Simone Rossi, Enzo Pasquale Scilingo
Noninvasive, objective quantitative techniques to gauge emotional states are fundamental for clinical psychology as they overcome subjective bias of currently used questionnaires. To this end, we investigated brain oscillatory EEG activity during caresslike, affective haptic elicitation conveyed on the forearm at two force (strength of the caress) and three velocity (velocity of the caress) levels. Thirty-two healthy subjects (16 female) were asked to assess each haptic stimulus in terms of arousal (i.e., intensity of emotional perception) and valence (i...
May 20, 2018: Psychophysiology
https://www.readbyqxmd.com/read/29774882/-sleep-wake-rhythm-after-extracorporeal-circulation-in-new-zealand-rabbits
#2
Kaiwei Wang, Jiaqiang Zhang
To evaluate the change of sleep-wake rhythm after extracorporeal circulation (ECC) in New Zealand rabbits, and to explore the role of clock genes in sleep-wake rhythm disorder by ECC.
 Methods: A total of 54 New Zealand rabbits were randomly divided into 3 groups: a normal group (Group N), a sham group (Group S) and a model group (Group ECC). Electrocorticogram (ECOG), electroophthalmogram (EOG) and electromyogram (EMG) were respectively recorded by multipurpose EEG recorder, and the sleep-wake rhythm was also recorded...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29773777/seeking-biomarkers-of-early-childhood-malnutrition-s-long-term-effects
#3
Pedro A Valdés-Sosa, Janina R Galler, Cyralene P Bryce, Arielle G Rabinowitz, María L Bringas-Vega, Nibaldo Hernández-Mesa, Alberto Taboada-Crispi
Protein-energy malnutrition affects one in nine people worldwide and is most prevalent among children aged less than five years in low-income countries. Early childhood malnutrition can have damaging neurodevelopmental effects, with significant increases in cognitive, neurological and mental health problems over the lifespan, outcomes which can also extend to the next generation. This article describes a research collaboration involving scientists from five centers in Barbados, China, Cuba and the USA. It builds on longer-term joint work between the Barbados Nutrition Study (which, over a 45-year span, has extensively documented nutritional, health, behavioral, social and economic outcomes of individuals who experienced protein-energy malnutrition in the first year of life and healthy controls from the same classrooms and neighborhoods) and the Cuban Neuroscience Center (which has developed low-cost brain imaging methods that can be readily used in low income settings to identify biomarkers for early detection and treatment of adverse consequences of childhood malnutrition)...
April 2018: MEDICC Review
https://www.readbyqxmd.com/read/29761978/-synchronous-analysis-of-corticomuscular-coherence-based-on-gabor-wavelet-transfer-entropy
#4
Yuanyuan Zhang, Ce Zou, Xiaoling Chen, Yonghao Yin, Shengcui Cheng, Yingya Chen, Ping Xie
Synchronization analysis of electroencephalogram (EEG) and electromyogram (EMG) could reveal the functional corticomuscular coupling (FCMC) during the motor task in human. A novel method combining Gabor wavelet and transfer entropy (Gabor-TE) is proposed to quantitatively analyze the nonlinearly synchronous corticomuscular function coupling and direction characteristics under different steady-state force. Firstly, the Gabor wavelet transform method was used to acquire the local frequency-band signals of the EEG and EMG signals recorded from nine healthy controls simultaneously during performing grip task with four different steady-state forces...
December 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29754711/changes-in-resting-eeg-in-colombian-ex-combatants-ith-antisocial-personality-disorder
#5
Claudia Ramos, Jon Duque-Grajales, Jorge Rendón, Alejandro Montoya-Betancur, Ana Baena, David Pineda, Carlos Tobón
INTRODUCTION: Although the social and economic consequences of Colombian internal conflicts mainly affected the civilian population, they also had other implications. The ex-combatants, the other side of the conflict, have been the subject of many studies that question their personality structures and antisocial features. Results suggest that ex-combatants usually have characteristics of an antisocial personality disorder (ASPD) that is related with their behaviour. METHODS: Quantitative EEG (qEEG) was used to evaluate differences in cortical activity patterns between an ex-combatants group and a control group...
April 2018: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29753683/evaluating-resective-surgery-targets-in-epilepsy-patients-a-comparison-of-quantitative-eeg-methods
#6
Michael Müller, Kaspar Schindler, Marc Goodfellow, Claudio Pollo, Christian Rummel, Andreas Steimer
BACKGROUND: Quantitative analysis of intracranial EEG is a promising tool to assist clinicians in the planning of resective brain surgery in patients suffering from pharmacoresistant epilepsies. Quantifying the accuracy of such tools, however, is nontrivial as a ground truth to verify predictions about hypothetical resections is missing. NEW METHOD: As one possibility to address this, we use customized hypotheses tests to examine the agreement of the methods on a common set of patients...
May 10, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29751355/targeting-of-microrna-21-5p-protects-against-seizure-damage-in-a-kainic-acid-induced-status-epilepticus-model-via-pten-mtor
#7
Chongyang Tang, Yunhe Gu, Haiyang Wang, Hongmei Wu, Yu Wang, Yao Meng, Zhibin Han, Yifei Gu, Wei Ma, Zhenfeng Jiang, Yuanyuan Song, Meng Na, Dunyue Lu, Zhiguo Lin
OBJECTIVE: Studies have shown that microRNAs play a role in the development of epilepsy by regulating downstream target messenger (m)RNA. The present study aims to determine the changes associated with microRNA-21-5p (miR-21-5p) during epileptogenesis in a kainic acid rat model, and to assess whether the PTEN-mTOR pathway is a target of miR-21-5p. METHOD: Reverse transcription polymerase chain reaction (RT-PCR) was used to examine the quantitative expressions of miR-21-5p and PTEN, and Western blotting was used to test the activity of mTOR in the acute, latent, and chronic stages of epileptogenesis...
May 4, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29719672/abnormal-coherence-and-sleep-composition-in-children-with-angelman-syndrome-a-retrospective-eeg-study
#8
Hanna den Bakker, Michael S Sidorov, Zheng Fan, David J Lee, Lynne M Bird, Catherine J Chu, Benjamin D Philpot
Background: Angelman syndrome (AS) is a neurodevelopmental disorder characterized by intellectual disability, speech and motor impairments, epilepsy, abnormal sleep, and phenotypic overlap with autism. Individuals with AS display characteristic EEG patterns including high-amplitude rhythmic delta waves. Here, we sought to quantitatively explore EEG architecture in AS beyond known spectral power phenotypes. We were motivated by studies of functional connectivity and sleep spindles in autism to study these EEG readouts in children with AS...
2018: Molecular Autism
https://www.readbyqxmd.com/read/29713297/metabolic-and-electrophysiological-changes-associated-to-clinical-improvement-in-two-severely-traumatized-subjects-treated-with-emdr-a-pilot-study
#9
Marco Pagani, Gianluca Castelnuovo, Andrea Daverio, Patrizia La Porta, Leonardo Monaco, Fabiola Ferrentino, Agostino Chiaravalloti, Isabel Fernandez, Giorgio Di Lorenzo
Neuroimaging represents a powerful tool to investigate the neurobiological correlates of Eye Movements Desensitization and Reprocessing (EMDR). The impact of EMDR on cortical and sub-cortical brain regions has been proven by several investigations demonstrating a clear association between symptoms disappearance and changes in cortical structure and functionality. The aim of this study was to assess by electroencephalography (EEG) and for the first time by positron emission tomography (PET) the changes occurring after EMDR therapy in two cases of psychological trauma following brain concussion and comatose state due to traffic accident...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29710730/viral-encephalitis-in-quantitative-eeg
#10
Yuepeng Wu, Meihua Chen, Yu Cui, Xiying He, Jingzhong Niu, Yanbo Zhang, Li Zhou
OBJECTIVE: Our aim was to study the character of quantitative EEG of viral encephalitis. METHOD: Collect the EEG data of hospitalized children with viral encephalitis diagnosed by pediatricians from January 2013 to September 2016, and EEG data of normal cases at the same age were control group. Using quantitative EEG analysis technologies to obtain power spectrum value, power spectrum value, 1 power spectrum value, 12 power spectrum value, 21 power spectrum value, and 12 power spectrum value...
April 26, 2018: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/29703947/human-brain-arousal-in-the-resting-state-a-genome-wide-association-study
#11
Philippe Jawinski, Holger Kirsten, Christian Sander, Janek Spada, Christine Ulke, Jue Huang, Ralph Burkhardt, Markus Scholz, Tilman Hensch, Ulrich Hegerl
Arousal affects cognition, emotion, and behavior and has been implicated in the etiology of psychiatric disorders. Although environmental conditions substantially contribute to the level of arousal, stable interindividual characteristics are well-established and a genetic basis has been suggested. Here we investigated the molecular genetics of brain arousal in the resting state by conducting a genome-wide association study (GWAS). We selected N = 1877 participants from the population-based LIFE-Adult cohort...
April 27, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29699023/-quantitative-eeg-and-event-related-potential-p300-analysis-oxiracetam-injection-curative-effect-in-the-treatment-of-delayed-encephalopathy-after-acutecarbon-monoxide-poisoning
#12
M L Sun, D M Shi, H N Yin, X B Pan, W G Liu
Objective: oevaluateclinical curative effect of oxiracetam injection in the treatment of delayed encephalopathy after acute carbon monoxide poisoning (DEACMP) . Methods: Methods 52 patients with DEACMP were randomly divided into the observation group and the control group, 27 cases in the observation group and 25 cases in the control group. The 2 groups were adopted the treatment to improve the cerebral microcirculation and other symptomatic, the observation group on the basis of treatment for the treatment of oxiracetam Injection...
February 20, 2018: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29684988/influence-of-electrocautery-induced-electromagnetic-interference-on-quantitative-electroencephalographic-monitoring-of-hypnosis-during-general-anesthesia-comparison-between-the-adms%C3%A2-and-the-bis-vistatm
#13
Dae-Hee Kim, Ji-Young Yoo, Jong-Yeop Kim, Soo-Hwan Ahn, Seongsu Kim, Sang-Kee Min
Background: Hypnosis monitors analyze small-amplitude electrical signals transmitted from the brain that could be exposed to the electromagnetic field that occurs around the body during electrocautery (ECT). We investigated the influence of ECT on hypnosis monitoring during anesthesia. Methods: We simultaneously monitored BIS and uCON during 50 gynecologic oncology surgeries. During the episodes of ECT, we compared the absolute difference (a-Diff) between the baseline index and the most deviated index after ECT over either 30-60 s (ECT30-60) or more than 60 s (ECT > 60) between the monitors...
April 24, 2018: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29684437/sleep-dysfunction-following-neonatal-ischemic-seizures-are-differential-by-neonatal-age-of-insult-as-determined-by-qeeg-in-a-mouse-model
#14
S K Kang, S Ammanuel, S Thodupunuri, D A Adler, M V Johnston, S D Kadam
Neonatal seizures associated with hypoxic-ischemic encephalopathy (HIE) pose a challenge in their acute clinical management and are often followed by long-term neurological consequences. We used a newly characterized CD-1 mouse model of neonatal ischemic seizures associated with age-dependent (P7 vs. P10) seizure severity and phenobarbital efficacy (i.e.; PB-resistant vs. PB-efficacious respectively) following unilateral carotid ligation. The long-term consequences following untreated neonatal seizures in P7 vs...
April 20, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29684039/development-and-validation-of-brain-target-controlled-infusion-of-propofol-in-mice
#15
Brenna P Shortal, Sarah L Reitz, Adeeti Aggarwal, Qing C Meng, Andrew R McKinstry-Wu, Max B Kelz, Alex Proekt
Mechanisms through which anesthetics disrupt neuronal activity are incompletely understood. In order to study anesthetic mechanisms in the intact brain, tight control over anesthetic pharmacology in a genetically and neurophysiologically accessible animal model is essential. Here, we developed a pharmacokinetic model that quantitatively describes propofol distribution into and elimination out of the brain. To develop the model, we used jugular venous catheters to infuse propofol in mice and measured propofol concentration in serial timed brain and blood samples using high performance liquid chromatography (HPLC)...
2018: PloS One
https://www.readbyqxmd.com/read/29682871/the-effects-of-anticipating-a-high-stress-task-on-sleep-and-performance-during-simulated-on-call-work
#16
Madeline Sprajcer, Sarah M Jay, Grace E Vincent, Andrew Vakulin, Leon Lack, Sally A Ferguson
On-call work is used to manage around the clock working requirements in a variety of industries. Often, tasks that must be performed while on-call are highly important, difficult and/or stressful by nature and, as such, may impact the level of anxiety that is experienced by on-call workers. Heightened anxiety is associated with poor sleep, which affects next-day cognitive performance. Twenty-four male participants (20-35 years old) spent an adaptation, a control and two counterbalanced on-call nights in a time-isolated sleep laboratory...
April 22, 2018: Journal of Sleep Research
https://www.readbyqxmd.com/read/29680429/repetitive-thought-is-associated-with-both-subjectively-and-objectively-recorded-polysomnographic-indices-of-disrupted-sleep-in-insomnia-disorder
#17
Andrea Galbiati, Enrico Giora, Simone Sarasso, Marco Zucconi, Luigi Ferini-Strambi
BACKGROUND: Repetitive thought is a hallmark of several psychopathological conditions and in particular a perpetuating and maintaining factor in Insomnia Disorder. Accordingly, one of the primary complaints reported by Insomnia patients is the inability to shut-off or control thoughts. Worry and rumination are the two best-known styles of repetitive thought leading to sleep disturbances. The aim of this study was to investigate the relationship of these two cognitive processes on nocturnal sleep indices objectively recorded by polysomnography...
May 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29661665/combining-early-post-resuscitation-eeg-and-hrv-features-improves-the-prognostic-performance-in-cardiac-arrest-model-of-rats
#18
Chenxi Dai, Zhi Wang, Liang Wei, Gang Chen, Bihua Chen, Feng Zuo, Yongqin Li
OBJECTIVE: Early and reliable prediction of neurological outcome remains a challenge for comatose survivors of cardiac arrest (CA). The purpose of this study was to evaluate the predictive ability of EEG, heart rate variability (HRV) features and the combination of them for outcome prognostication in CA model of rats. METHODS: Forty-eight male Sprague-Dawley rats were randomized into 6 groups (n=8 each) with different cause and duration of untreated arrest. Cardiopulmonary resuscitation was initiated after 5, 6 and 7min of ventricular fibrillation or 4, 6 and 8min of asphyxia...
April 9, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29656189/quantitative-electroencephalography-as-a-marker-of-cognitive-fluctuations-in-dementia-with-lewy-bodies-and-an-aid-to-differential-diagnosis
#19
Myrto Stylianou, Nicholas Murphy, Luis R Peraza, Sara Graziadio, Ruth Cromarty, Alison Killen, John T O' Brien, Alan J Thomas, Fiona E N LeBeau, John-Paul Taylor
OBJECTIVE: We investigated for quantitative EEG (QEEG) differences between Alzheimer's disease (AD), dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD) patients and healthy controls, and for QEEG signatures of cognitive fluctuations (CFs) in DLB. METHODS: We analysed eyes-closed, resting state EEGs from 18 AD, 17 DLB and 17 PDD patients with mild dementia, and 21 age-matched controls. Measures included spectral power, dominant frequency (DF), frequency prevalence (FP), and temporal DF variability (DFV), within defined EEG frequency bands and cortical regions...
April 3, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29653315/eeg-based-neurophysiological-indicators-of-hallucinations-in-alzheimer-s-disease-comparison-with-dementia-with-lewy-bodies
#20
Meenakshi Dauwan, Mascha M J Linszen, Afina W Lemstra, Philip Scheltens, Cornelis J Stam, Iris E Sommer
We studied neurophysiological indicators of hallucinations in Alzheimer's disease patients with hallucinations (ADhall+), and compared them with nonhallucinating AD (ADhall-) and dementia with Lewy bodies (DLBhall+) patients. Thirty-six matched ADhall+ and 108 ADhall- and 29 DLBhall+ patients were selected from the Amsterdam Dementia Cohort. Electroencephalography (EEG) spectral and functional connectivity (FC) analyses (phase lag index) were performed. Quantitative and visual EEG measures were combined in a random forest algorithm to determine which EEG-based variable(s) play a role in hallucinations...
March 19, 2018: Neurobiology of Aging
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