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Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology

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https://www.readbyqxmd.com/read/27899243/corrigendum-to-brain-and-cognitive-functions-in-two-groups-of-na%C3%A3-ve-hiv-patients-selected-for-a-different-plan-of-antiretroviral-therapy-a-qeeg-study-clin-neurophysiol-127-2016-3455-3469
#1
Claudio Babiloni, Alfredo Pennica, Paolo Capotosto, Paolo Onorati, Chiara Muratori, Stefano Ferracuti, Paolo Roma, Valentina Correr, Elisa Piccinni, Giuseppe Noce, Claudio Del Percio, Susanna Cordone, Cristina Limatola, Andrea Soricelli, Francesco Di Campli, Laura Gianserra, Lorenzo Ciullini, Antonio Aceti, Magdalena Viscione, Elisabetta Teti, Loredana Sarmati, Massimo Andreoni
No abstract text is available yet for this article.
November 26, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27884542/corrigendum-to-abnormal-cortical-sources-of-resting-state-electroencephalographic-rhythms-in-single-treatment-na%C3%A3-ve-hiv-individuals-a-statistical-z-score-index-clin-neurophysiol-127-2016-1803-1812
#2
Claudio Babiloni, Alfredo Pennica, Claudio Del Percio, Giuseppe Noce, Susanna Cordone, Chiara Muratori, Stefano Ferracuti, Nicole Donato, Francesco Di Campli, Laura Gianserra, Elisabetta Teti, Antonio Aceti, Andrea Soricelli, Magdalena Viscione, Cristina Limatola, Massimo Andreoni, Paolo Onorati
No abstract text is available yet for this article.
November 21, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27923188/electrophysiology-in-fisher-syndrome
#3
REVIEW
Satoshi Kuwabara, Yukari Sekiguchi, Sonoko Misawa
Fisher syndrome (FS), a variant of Guillain-Barré syndrome (GBS), is characterized by the clinical triad of ophthalmoplegia, ataxia, and areflexia. The lesion sites for these unique clinical features include the oculomotor nerves and group 1a neurons in the dorsal root ganglion, and the presence of FS is determined by the expression of ganglioside GQ1b in the human nervous system. Neurophysiological findings suggest that ataxia and areflexia are due to an impaired proprioceptive afferent system. Typically, the soleus H-reflex is absent and a body-sway analysis using posturography shows a 1-Hz peak, which indicates proprioception dysfunction...
November 20, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27919576/ocular-vestibular-evoked-myogenic-potentials-and-the-importance-of-the-bifid-response
#4
EDITORIAL
Eleftherios S Papathanasiou
No abstract text is available yet for this article.
November 19, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27919012/atypical-brain-activation-in-children-who-stutter-in-a-visual-go-nogo-task-an-erp-study
#5
Johanna Piispala, Sara Määttä, Ari Pääkkönen, Risto Bloigu, Mika Kallio, Eira Jansson-Verkasalo
OBJECTIVE: The aim of the study was to investigate inhibitory control by evaluating possible differences in the strength and distribution of the brain activity in a visual Go/Nogo task in children who stutter (CWS) compared to typically developing children (TDC). METHODS: Eleven CWS and 19 TDC participated. Event related potentials (ERP) were recorded using a 64-channel EEG-cap during an equiprobable visual Go/Nogo task. The global field power (GFP) as well as the mean amplitudes in the P3 time frame were compared between groups...
November 17, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27912169/non-harmonicity-in-high-frequency-components-of-the-intra-operative-corticogram-to-delineate-epileptogenic-tissue-during-surgery
#6
Evelien E Geertsema, Maryse A van 't Klooster, Nicole E C van Klink, Frans S S Leijten, Peter C van Rijen, Gerhard H Visser, Stiliyan N Kalitzin, Maeike Zijlmans
OBJECTIVE: We aimed to test the potential of auto-regressive model residual modulation (ARRm), an artefact-insensitive method based on non-harmonicity of the high-frequency signal, to identify epileptogenic tissue during surgery. METHODS: Intra-operative electrocorticography (ECoG) of 54 patients with refractory focal epilepsy were recorded pre- and post-resection at 2048Hz. The ARRm was calculated in one-minute epochs in which high-frequency oscillations (HFOs; fast ripples, 250-500Hz; ripples, 80-250Hz) and spikes were marked...
November 17, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27923187/sleep-eeg-patterns-in-infants-with-congenital-zika-virus-syndrome
#7
Maria Durce Costa Gomes Carvalho, Demócrito de Barros Miranda-Filho, Vanessa van der Linden, Paula Fabiana Sobral, Regina Coeli Ferreira Ramos, Maria Ângela Wanderley Rocha, Marli Tenório Cordeiro, Sarah Pinheiro de Alencar, Magda Lahorgue Nunes
OBJECTIVES: To describe sleep EEG patterns of neonates, and infants with microcephaly due to congenital Zika virus (ZikV) syndrome. METHODS: A descriptive case series of EEGs performed in a cohort of neonates with microcephaly monitored from October 2015 to February 2016 at a University Hospital in Northeast Brazil. Infants were investigated following an established protocol that includes EEG, neuroimaging studies, PCR and specific antibodies for ZikV detection...
November 14, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27913148/spike-detection-inter-reader-agreement-and-a-statistical-turing-test-on-a-large-data-set
#8
Mark L Scheuer, Anto Bagic, Scott B Wilson
OBJECTIVE: Compare the spike detection performance of three skilled humans and three computer algorithms. METHODS: 40 prolonged EEGs, 35 containing reported spikes, were evaluated. Spikes and sharp waves were marked by the humans and algorithms. Pairwise sensitivity and false positive rates were calculated for each human-human and algorithm-human pair. Differences in human pairwise performance were calculated and compared to the range of algorithm versus human performance differences as a type of statistical Turing test...
November 14, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27912171/the-topographical-distribution-of-epileptic-spikes-in-juvenile-myoclonic-epilepsy-with-and-without-photosensitivity
#9
P R Bauer, K Gorgels, W Spetgens, N E C van Klink, F S S Leijten, J W Sander, G H Visser, M Zijlmans
OBJECTIVE: Up to 30% of people with juvenile myoclonic epilepsy (JME) have photoparoxysmal responses (PPR). Recent studies report on structural and pathophysiological differences between people with JME with (JME+PPR) and without PPR (JME-PPR). We investigated whether electrophysiological features outside photic stimulation differ between these subtypes. METHODS: We analysed EEG recordings of people with JME at a tertiary epilepsy centre and an academic hospital...
November 14, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27888744/bilateral-changes-in-muscle-architecture-of-physically-active-people-with-chronic-stroke-a-quantitative-muscle-ultrasound-study
#10
Frank Berenpas, Anne-Marieke Martens, Vivian Weerdesteyn, Alexander C Geurts, Nens van Alfen
OBJECTIVE: Changes in muscle architecture after stroke are usually assessed by investigating inter-limb differences. As a result bilateral changes of muscle architecture might be missed. Our aim was to investigate whether bilateral architectural changes in skeletal muscle can be detected in chronic, physically active stroke patients using quantitative muscle ultrasound (QMUS). METHODS: Twenty-eight patients (mean time since stroke 5.2years, median Brunnström stage 4) were recruited...
November 11, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27912172/brain-heart-communication-evidence-for-central-pacemaker-oscillations-with-a-dominant-frequency-at-0-1hz-in-the-cingulum
#11
Gert Pfurtscheller, Andreas R Schwerdtfeger, Annemarie Seither-Preisler, Clemens Brunner, Christoph Stefan Aigner, Joana Brito, Marciano P Carmo, Alexandre Andrade
OBJECTIVES: In the brain and heart, oscillations at about 0.1Hz are conspicuous. It is therefore worthwhile to study the interaction between intrinsic BOLD oscillations (0.1Hz) and slow oscillations in heart rate interval (RRI) signals and differentiate between their neural and vascular origin. METHODS: We studied the phase-coupling with a 3T scanner with high scanning rate between BOLD signals in 22 regions and simultaneously recorded RRI oscillations in 23 individuals in two resting states...
November 10, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27912170/influence-of-attention-alternation-on-movement-related-cortical-potentials-in-healthy-individuals-and-stroke-patients
#12
Susan Aliakbaryhosseinabadi, Vladimir Kostic, Aleksandra Pavlovic, Sasa Radovanovic, Ernest Nlandu Kamavuako, Ning Jiang, Laura Petrini, Kim Dremstrup, Dario Farina, Natalie Mrachacz-Kersting
OBJECTIVE: In this study, we analyzed the influence of artificially imposed attention variations using the auditory oddball paradigm on the cortical activity associated to motor preparation/execution. METHODS: EEG signals from Cz and its surrounding channels were recorded during three sets of ankle dorsiflexion movements. Each set was interspersed with either a complex or a simple auditory oddball task for healthy participants and a complex auditory oddball task for stroke patients...
November 10, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27889627/subthalamic-oscillations-and-phase-amplitude-coupling-are-greater-in-the-more-affected-hemisphere-in-parkinson-s-disease
#13
Lauren A Shreve, Anca Velisar, Mahsa Malekmohammadi, Mandy Miller Koop, Megan Trager, Emma J Quinn, Bruce C Hill, Zack Blumenfeld, Camilla Kilbane, Alessandra Mantovani, Jaimie M Henderson, Helen Brontë-Stewart
OBJECTIVE: Determine the incidence of resting state oscillations in alpha/beta, high frequency (HFO) bands, and their phase amplitude coupling (PAC) in a large cohort in Parkinson's disease (PD). METHODS: Intra-operative local field potentials (LFPs) from subthalamic nucleus (STN) were recorded from 100 PD subjects, data from 74 subjects were included in the analysis. RESULTS: Alpha/beta oscillations were evident in >99%, HFO in 87% and PAC in 98% of cases...
November 10, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27894023/persistent-generalized-periodic-discharges-a-specific-marker-of-fatal-outcome-in-cerebral-hypoxia
#14
Roland Renzel, Christian R Baumann, Ian Mothersill, Rositsa Poryazova
OBJECTIVES: Electroencephalography (EEG) is one of the methods used in predicting the outcome after cerebral hypoxia. In this study we aim to evaluate the significance of generalized periodic discharges (GPD) as a prognostic marker. METHODS: We retrospectively analyzed the medical histories of patients, who underwent an EEG after cardiac arrest during the time period from 2005 to 2013 at the University Hospital Zurich. All EEGs were re-interpreted using the 2012 American Clinical Neurophysiology Society (ACNS) classification for intensive care unit (ICU) EEGs...
November 5, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27888745/feasibility-of-eliciting-the-h-reflex-in-the-masseter-muscle-in-patients-under-general-anesthesia
#15
Sedat Ulkatan, Ana Maria Jaramillo, Maria J Téllez, Robert R Goodman, Vedran Deletis
OBJECTIVE: To explore the feasibility of eliciting the brainstem H reflex in the masseter muscle in patients under general anesthesia. METHODS: We electrically stimulated the masseteric nerve, a branch of the trigeminal nerve, and recorded ipsilateral masseteric and temporalis muscle responses. We tested eight patients who presented with trigeminal neuralgia; one patient had a temporal bone tumor and one patient had a brainstem arteriovenous malformation. All responses were elicited when patients were under general anesthesia and before the initiation of surgery...
November 5, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27866114/does-relative-or-absolute-eeg-power-have-prognostic-value-in-hie-setting
#16
LETTER
R B Govindan, An Massaro, Gilbert Vezina, Tammy Tsuchida, Caitlin Cristante, Adre du Plessis
No abstract text is available yet for this article.
November 5, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27866115/rethinking-blinking-no-cognitive-modulation-of-reflex-eye-protection-in-early-onset-blindness
#17
LETTER
S B Wallwork, R J Bufacchi, G L Moseley, G D Iannetti
No abstract text is available yet for this article.
November 3, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27866113/small-world-brain-network-characteristics-during-eeg-holter-recording-of-a-stroke-event
#18
LETTER
Fabrizio Vecchio, Francesca Miraglia, Angela Romano, Placido Bramanti, Paolo Maria Rossini
No abstract text is available yet for this article.
November 3, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27871056/fampridine-treatment-and-walking-distance-in-multiple-sclerosis-a-randomised-controlled-trial
#19
Hannah Pickering, Jenna Murray, Cindy S-Y Lin, Christine Cormack, Andrew Martin, Matthew C Kiernan, Arun V Krishnan
OBJECTIVE: To explore the benefits of modified-release fampridine on walking distance in MS. METHODS: This was a randomised double-blind, placebo-controlled crossover trial of fampridine in 25 MS patients. The primary outcome measure was the six minute walk test (6MWT). A p-value<10% led to rejection of the null hypothesis. RESULTS: The pre-specified criterion for statistical significance was met, with a 17m improvement in 6MWT in the treatment arm...
November 2, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27883965/frequency-independent-characteristics-of-high-frequency-oscillations-in-epileptic-and-non-epileptic-regions
#20
Martin Pail, Pavel Řehulka, Jan Cimbálník, Irena Doležalová, Jan Chrastina, Milan Brázdil
OBJECTIVE: The purpose of the presented study is to determine whether there are frequency-independent high-frequency oscillation (HFO) parameters which may differ in epileptic and non-epileptic regions. METHODS: We studied 31 consecutive patients with medically intractable focal (temporal and extratemporal) epilepsies who were examined by either intracerebral or subdural electrodes. Automated detection was used to detect HFO. The characteristics (rate, amplitude, and duration) of HFO were statistically compared within three groups: the seizure onset zone (SOZ), the irritative zone (IZ), and areas outside the IZ and SOZ (nonSOZ/nonIZ)...
October 29, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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