journal
MENU ▼
Read by QxMD icon Read
search

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

journal
https://www.readbyqxmd.com/read/28454042/cortical-plasticity-and-levodopa-induced-dyskinesias-in-parkinson-s-disease-connecting-the-dots-in-a-multicomponent-network
#1
REVIEW
Roopa Rajan, Traian Popa, Angelo Quartarone, Maria Felice Ghilardi, Asha Kishore
Levodopa-induced dyskinesias are motor complications following long term dopaminergic therapy in Parkinson's disease (PD). Impaired brain plasticity resulting in the creation of aberrant motor maps intended to encode normal voluntary movement is proposed to result in the development of dyskinesias. Traditionally, the various nodes in the motor network like the striato-cortical and the cerebello-thalamic loops were thought to function independent of each other with little communication among them. Anatomical evidence from primates revealed the existence of reciprocal loops between the basal ganglia and the cerebellum providing an anatomical basis for communication between the motor network loops...
April 10, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28445839/temporal-lobe-spikes-eeg-fmri-contributions-to-the-mesial-vs-lateral-debate
#2
Satsuki Watanabe, François Dubeau, Natalja Zazubovits, Jean Gotman
OBJECTIVE: It has been reported that interictal epileptic discharges (IEDs) recorded in temporal regions on scalp EEG are unlikely to originate from mesial temporal structures. However, EEG-fMRI sometimes show mesial temporal activation. We hypothesized that BOLD activation in the temporal neocortex is weaker than in the mesial structures, reflecting the fact that propagated activity has less metabolic demand than the original discharge. METHODS: Twelve patients with epilepsy who have BOLD response in mesial temporal structures were selected from our EEG-fMRI database...
April 9, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28438517/a-high-performing-eeg-approach-for-the-automated-scoring-of-the-sleep-stages-of-neonates
#3
EDITORIAL
Stavros I Dimitriadis
No abstract text is available yet for this article.
April 8, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28433856/detection-of-recurrent-activation-patterns-across-focal-seizures-application-to-seizure-onset-zone-identification
#4
Manel Vila-Vidal, Alessandro Principe, Miguel Ley, Gustavo Deco, Adrià Tauste Campo, Rodrigo Rocamora
OBJECTIVE: We introduce a method that quantifies the consistent involvement of intracranially monitored regions in recurrent focal seizures. METHODS: We evaluated the consistency of two ictal spectral activation patterns (mean power change and power change onset time) in intracranial recordings across focal seizures from seven patients with clinically marked seizure onset zone (SOZ). We examined SOZ discrimination using both patterns in different frequency bands and periods of interest...
April 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28431323/transcranial-magnetic-stimulation-in-developmental-stuttering-relations-with-previous-neurophysiological-research-and-future-perspectives
#5
REVIEW
P Busan, P P Battaglini, M Sommer
Developmental stuttering (DS) is a disruption of the rhythm of speech, and affected people may be unable to execute fluent voluntary speech. There are still questions about the exact causes of DS. Evidence suggests there are differences in the structure and functioning of motor systems used for preparing, executing, and controlling motor acts, especially when they are speech related. Much research has been obtained using neuroimaging methods, ranging from functional magnetic resonance to diffusion tensor imaging and electroencephalography/magnetoencephalography...
April 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28427894/in-vivo-evaluation-of-central-cholinergic-circuits-in-parkinson-s-disease-using-transcranial-magnetic-stimulation
#6
EDITORIAL
Raffaele Nardone, Eugen Trinka
No abstract text is available yet for this article.
April 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28433855/the-electrophysiology-of-neurohiv-a-systematic-review-of-eeg-and-meg-studies-in-people-with-hiv-infection-since-the-advent-of-highly-active-antiretroviral-therapy
#7
Ana Lucia Fernández-Cruz, Lesley K Fellows
OBJECTIVE: The Human Immunodeficiency Virus (HIV) has an impact on the brain, even when the infection is well-controlled with modern highly-active antiretroviral therapy (HAART). While dementia is rare in those on HAART, milder cognitive impairment is common. The causes, patterns, and evolution of brain dysfunction in people living with HIV remain uncertain. We evaluate whether electrophysiological methods provide informative measures of brain dysfunction in this population. METHODS: A systematic literature search identified studies that used EEG or MEG to evaluate persons living with HIV published between 1996 (when HAART became available) and 2016...
March 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28410884/the-effect-of-transcranial-direct-current-stimulation-on-motor-sequence-learning-and-upper-limb-function-after-stroke
#8
Melanie K Fleming, John C Rothwell, Laszlo Sztriha, James T Teo, Di J Newham
OBJECTIVE: To assess the impact of electrode arrangement on the efficacy of tDCS in stroke survivors and determine whether changes in transcallosal inhibition (TCI) underlie improvements. METHODS: 24 stroke survivors (3-124months post-stroke) with upper limb impairment participated. They received blinded tDCS during a motor sequence learning task, requiring the paretic arm to direct a cursor to illuminating targets on a monitor. Four tDCS conditions were studied (crossover); anodal to ipsilesional M1, cathodal to contralesional M1, bihemispheric, sham...
March 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28427895/changing-cortical-inhibition-in-the-course-of-amyotrophic-lateral-sclerosis
#9
EDITORIAL
Michael Swash
No abstract text is available yet for this article.
March 28, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28412559/interictal-ripples-nested-in-epileptiform-discharge-help-to-identify-the-epileptogenic-zone-in-neocortical-epilepsy
#10
Shuang Wang, Norman K So, Bo Jin, Irene Z Wang, Juan C Bulacio, Rei Enatsu, Shenyi Dai, Zhong Chen, Jorge Gonzalez-Martinez, Imad M Najm
OBJECTIVE: This study aimed to identify the subtype of interictal ripples that help delineate the epileptogenic zone in neocortical epilepsy. METHODS: Totally 25 patients with focal neocortical epilepsy who had invasive electroencephalography (EEG) evaluation and subsequent surgery were included. They were followed up for at least 2years. Interictal ripples (80-250Hz) and fast ripples (250-500Hz) during slow-wave sleep were identified. Neocortical ripples were defined as type I ripples when they were superimposed on epileptiform discharges, and as type II ripples when they occurred independently...
March 25, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28402868/age-related-differences-in-twitch-properties-and-muscle-activation-of-the-first-dorsal-interosseous
#11
Jonathan D Miller, Trent J Herda, Michael A Trevino, Adam J Sterczala, Anthony B Ciccone, Justin X Nicoll
OBJECTIVE: To examine twitch force potentiation and twitch contraction duration, as well as electromyographic amplitude (EMGRMS) and motor unit mean firing rates (MFR) at targeted forces between young and old individuals in the first dorsal interosseous (FDI). Ultrasonography was used to assess muscle quality. METHODS: Twenty-two young (YG) (age=22.6±2.7years) and 14 older (OD) (age=62.1±4.7years) individuals completed conditioning contractions at 10% and 50% maximal voluntary contraction, (MVC) during which EMGRMS and MFRs were assessed...
March 24, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28343887/corrigendum-to-magnetoencephalography-signals-are-influenced-by-skull-defects-clin-neurophysiol-125-2014-1653-1662
#12
S Lau, L Flemming, J Haueisen
No abstract text is available yet for this article.
March 23, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28402865/inhibition-versus-facilitation-of-contralesional-motor-cortices-in-stroke-deriving-a-model-to-tailor-brain-stimulation
#13
Vishwanath Sankarasubramanian, Andre G Machado, Adriana B Conforto, Kelsey A Potter-Baker, David A Cunningham, Nicole M Varnerin, Xiaofeng Wang, Ken Sakaie, Ela B Plow
OBJECTIVE: The standard approach to brain stimulation in stroke is based on the premise that ipsilesional M1 (iM1) is important for motor function of the paretic upper limb, while contralesional cortices compete with iM1. Therefore, the approach typically advocates facilitating iM1 and/or inhibiting contralesional M1 (cM1). But, this approach fails to elicit much improvement in severely affected patients, who on account of extensive damage to ipsilesional pathways, cannot rely on iM1...
March 21, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28407522/physiological-arousal-accompanying-postural-responses-to-external-perturbations-after-stroke
#14
C L Pollock, M G Carpenter, M A Hunt, A Gallina, T M Vieira, T D Ivanova, S J Garland
OBJECTIVE: The purpose of this study was to examine simultaneously the level of physiological arousal and the postural response to external perturbations in people post-stroke compared to age-matched controls to build a more comprehensive understanding of the effect of stroke on postural control and balance self-efficacy. METHODS: Participants stood with each foot on separate force platforms. Ten applications of loads of 2% body weight at the hips perturbed the participant anteriorly under two conditions: investigator-triggered or self-triggered (total 20)...
March 18, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28400098/olfactory-dysfunction-in-early-parkinson-s-disease-is-associated-with-short-latency-afferent-inhibition-reflecting-central-cholinergic-dysfunction
#15
Eungseok Oh, Jinse Park, Jinyoung Youn, Ji Sun Kim, Suyeon Park, Wooyoung Jang
OBJECTIVE: Our study aimed to determine whether the short latency afferent inhibition (SAI) response could be associated with the severity of olfactory dysfunction in PD patients. METHODS: A total of 71 PD patients and 20 controls were enrolled. All PD patients were classified into 3 groups by the severity of the olfactory deficit. Single-pulse transmagnetic stimulation (TMS) parameters and SAI were assessed. RESULTS: The integrated SAI in the PD with anosmia and PD with hyposomia groups was significantly less inhibited than that in the PD with normosmia and control groups [64...
March 18, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28400097/reply-to-what-it-should-mean-for-an-algorithm-to-pass-a-statistical-turing-test-for-detection-of-epileptiform-discharges
#16
LETTER
Mark L Scheuer, Anto Bagic, Scott B Wilson
No abstract text is available yet for this article.
March 16, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28399441/sleep-architecture-in-insomniacs-with-severe-benzodiazepine-abuse
#17
Mauro Manconi, Raffaele Ferri, Silvia Miano, Michelangelo Maestri, Valentina Bottasini, Marco Zucconi, Luigi Ferini-Strambi
OBJECTIVE: Benzodiazepines (BZDs) are the most commonly prescribed compounds in insomnia. A long-term of BZDs use may cause dependence and abuse. The aim of this study was to evaluate sleep architecture and microstructure (in terms of cyclic alternating pattern - CAP - analysis and of sleep EEG power spectral analysis) in a group of long-term users of high doses of BZDs for their primary chronic insomnia. METHODS: Twenty patients consecutively admitted at the Sleep Centre for drug discontinuation and 13 matched healthy controls underwent a full nocturnal video-polysomnographic recording, after one adaptation night...
March 16, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28363625/quantifying-neuromuscular-ultrasound-in-amyotrophic-lateral-sclerosis
#18
EDITORIAL
Lisa D Hobson-Webb, Alexander Grimm
No abstract text is available yet for this article.
March 16, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28400096/the-evolution-of-motor-cortical-dysfunction-in-amyotrophic-lateral-sclerosis
#19
Kazumoto Shibuya, Neil G Simon, Nimeshan Geevasinga, Parvathi Menon, James Howells, Susanna B Park, William Huynh, Yu-Ichi Noto, Steve Vucic, Matthew C Kiernan
OBJECTIVE: The present study aimed to investigate alterations in cortical function in amyotrophic lateral sclerosis (ALS) related to disease progression. METHODS: In total, clinical assessments were evaluated in 189 ALS patients, combined with assessment of cortical function utilising threshold tracking transcranial magnetic stimulation. Results were compared with disease stage. Disease stage was defined in three ways: (1) as a proportion of disease duration in deceased patients; (2) from the time of ALS onset; and (3) using the ALS rating scale-revised (ALSFRS-R)...
March 15, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28359652/automated-classification-of-neonatal-sleep-states-using-eeg
#20
Ninah Koolen, Lisa Oberdorfer, Zsofia Rona, Vito Giordano, Tobias Werther, Katrin Klebermass-Schrehof, Nathan Stevenson, Sampsa Vanhatalo
OBJECTIVE: To develop a method for automated neonatal sleep state classification based on EEG that can be applied over a wide range of age. METHODS: We collected 231 EEG recordings from 67 infants between 24 and 45weeks of postmenstrual age. Ten minute epochs of 8 channel polysomnography (N=323) from active and quiet sleep were used as a training dataset. We extracted a set of 57 EEG features from the time, frequency, and spatial domains. A greedy algorithm was used to define a reduced feature set to be used in a support vector machine classifier...
March 15, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
journal
journal
34563
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"