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

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https://www.readbyqxmd.com/read/28934625/the-medial-plantar-sensory-response-a-sensitive-marker-of-acute-inflammatory-demyelinating-polyneuropathy
#1
LETTER
Rechdi Ahdab, Samar Ayache, Mohammad Hassan A Noureldine, Tarik Nordine, Jean-Pascal Lefaucheur
No abstract text is available yet for this article.
September 2, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28926739/electrophysiological-correlates-of-performance-monitoring-in-binge-drinking-impaired-error-related-but-preserved-feedback-processing
#2
Séverine Lannoy, Fabien D'Hondt, Valérie Dormal, Joël Billieux, Pierre Maurage
OBJECTIVE: Performance monitoring, which allows efficient behavioral regulation using either internal (error processing) or external (feedback processing) cues, has not yet been explored in binge drinking despite its adaptive importance in everyday life, particularly in the regulation of alcohol consumption. Capitalizing on a theoretical model of risky behaviors, the present study aimed at determining the behavioral and electrophysiological correlates of the cognitive (inhibition) and motivational (reward sensitivity) systems during performance monitoring...
September 2, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28918969/a-pitfall-in-magnetic-stimulation-for-measuring-central-motor-conduction-time
#3
EDITORIAL
Hideyuki Matsumoto, Yoshikazu Ugawa
No abstract text is available yet for this article.
September 2, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28914230/prefrontal-cortical-responses-in-children-with-prenatal-alcohol-related-neurodevelopmental-impairment-a-functional-near-infrared-spectroscopy-study
#4
Julie A Kable, Claire D Coles
OBJECTIVE: Disruption in the neural activation of the prefrontal cortex (PFC) in modulating arousal was explored in children with heavy prenatal alcohol exposure (PAE), who have known neurobehavioral impairment. METHODS: During a task that elicits frustration, functional near-infrared spectroscopy (fNIRS) was used to measure PFC activation, specifically levels of oxygenated (HBO) and deoxygenated (HBR) hemoglobin, in children with PAE (n=18) relative to typically developing Controls (n=12) and a Clinical Contrast group with other neurodevelopmental or behavioral problems (n=14)...
September 2, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28841506/parkinsonian-rest-tremor-can-be-detected-accurately-based-on-neuronal-oscillations-recorded-from-the-subthalamic-nucleus
#5
J Hirschmann, J M Schoffelen, A Schnitzler, M A J van Gerven
OBJECTIVE: To investigate the possibility of tremor detection based on deep brain activity. METHODS: We re-analyzed recordings of local field potentials (LFPs) from the subthalamic nucleus in 10 PD patients (12 body sides) with spontaneously fluctuating rest tremor. Power in several frequency bands was estimated and used as input to Hidden Markov Models (HMMs) which classified short data segments as either tremor-free rest or rest tremor. HMMs were compared to direct threshold application to individual power features...
August 9, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28838815/standardized-computer-based-organized-reporting-of-eeg-score-second-version
#6
REVIEW
Sándor Beniczky, Harald Aurlien, Jan C Brøgger, Lawrence J Hirsch, Donald L Schomer, Eugen Trinka, Ronit M Pressler, Richard Wennberg, Gerhard H Visser, Monika Eisermann, Beate Diehl, Ronald P Lesser, Peter W Kaplan, Sylvie Nguyen The Tich, Jong Woo Lee, Antonio Martins-da-Silva, Hermann Stefan, Miri Neufeld, Guido Rubboli, Martin Fabricius, Elena Gardella, Daniella Terney, Pirgit Meritam, Tom Eichele, Eishi Asano, Fieke Cox, Walter van Emde Boas, Ruta Mameniskiene, Petr Marusic, Jana Zárubová, Friedhelm C Schmitt, Ingmar Rosén, Anders Fuglsang-Frederiksen, Akio Ikeda, David B MacDonald, Kiyohito Terada, Yoshikazu Ugawa, Dong Zhou, Susan T Herman
Standardized terminology for computer-based assessment and reporting of EEG has been previously developed in Europe. The International Federation of Clinical Neurophysiology established a taskforce in 2013 to develop this further, and to reach international consensus. This work resulted in the second, revised version of SCORE (Standardized Computer-based Organized Reporting of EEG), which is presented in this paper. The revised terminology was implemented in a software package (SCORE EEG), which was tested in clinical practice on 12,160 EEG recordings...
August 9, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28837907/electroencephalogram-dynamics-in-children-during-different-levels-of-anaesthetic-depth
#7
S Koch, A M Stegherr, R Mörgeli, S Kramer, E Toubekis, G Lichtner, F von Dincklage, C Spies
OBJECTIVE: Anaesthesia-induced dynamics in EEG are dependent on age and level of anaesthesia, but distinct characterisation in children is incomplete. Here we analyse EEG dynamics in children related to age and level of anaesthesia. METHODS: Frontal EEG recordings were obtained from 93 children (0-19years) during routine clinical anaesthesia. EEG segments were selected at four different levels of anaesthesia: emergence, light anaesthesia, deep anaesthesia, and very deep anaesthesia...
August 9, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28863361/evaluating-brain-computer-interface-performance-using-color-in-the-p300-checkerboard-speller
#8
D B Ryan, G Townsend, N A Gates, K Colwell, E W Sellers
OBJECTIVE: Current Brain-Computer Interface (BCI) systems typically flash an array of items from grey to white (GW). The objective of this study was to evaluate BCI performance using uniquely colored stimuli. METHODS: In addition to the GW stimuli, the current study tested two types of color stimuli (grey to color [GC] and color intensification [CI]). The main hypotheses were that in a checkboard paradigm, unique color stimuli will: (1) increase BCI performance over the standard GW paradigm; (2) elicit larger event-related potentials (ERPs); and, (3) improve offline performance with an electrode selection algorithm (i...
August 8, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28837908/motor-unit-remodelling-in-multifocal-motor-neuropathy-the-importance-of-axonal-loss
#9
Nidhi Garg, James Howells, Con Yiannikas, Steve Vucic, Arun V Krishnan, Judith Spies, Hugh Bostock, Emily K Mathey, John D Pollard, Susanna B Park, Matthew C Kiernan
OBJECTIVE: To estimate the degree of axonal loss in patients diagnosed with multifocal motor neuropathy (MMN) using a novel assessment of motor unit numbers and size. METHODS: Automated motor unit number estimation using a compound muscle action potential (CMAP) scan was undertaken in median nerves with conduction block. Results were compared with 30 age-matched healthy controls. RESULTS: Compared with healthy controls, MMN patients had fewer motor units (MMN: 33±11vs HC: 93±36 [mean±SD]; p<0...
August 7, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28863360/idiopathic-intracranial-hypertension-ocular-vestibular-evoked-myogenic-potentials-as-a-new-evaluation-tool
#10
LETTER
Robert Gürkov, Luis Wittwer, Guillaume Speierer, René Müri, Georgios Mantokoudis, Roger Kalla
No abstract text is available yet for this article.
August 5, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28826818/new-recommendations-of-the-ifcn-from-scalp-eeg-to-electrical-brain-imaging
#11
EDITORIAL
Louis Maillard, Georgia Ramantani
No abstract text is available yet for this article.
August 5, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28826017/a-smoking-related-background-helps-moderate-smokers-to-focus-an-event-related-potential-study-using-a-go-nogo-task
#12
Sandrine Detandt, Ariane Bazan, Elisa Schröder, Giulia Olyff, Hendrik Kajosch, Paul Verbanck, Salvatore Campanella
OBJECTIVE: Cognitive impairment is a major component in addiction. However, research has been inconclusive as to whether this is also the case for smokers. The present study aims at providing electrophysiological clue for altered inhibitory control in smokers and at investigating whether reduced inhibition was more pronounced during exposure to a smoking cue. METHODS: ERPs were recorded during a visual Go-NoGo task performed by 18 smokers and 23 controls, in which either a frequent Go signal (letter "M") or a rare No-Go signal ("letter W") were superimposed on three different long-lasting background contexts: black-neutral, smoking-related and non smoking-related...
August 5, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28829980/cortical-involvement-in-myopathies-insights-from-transcranial-magnetic-stimulation
#13
Raffaele Nardone, Viviana Versace, Luca Sebastianelli, Francesco Brigo, Stefan Golaszewski, Monica Christova, Eugen Gallasch, Leopold Saltuari, Eugen Trinka
OBJECTIVE: There is increasing evidence that an involvement of central nervous system (CNS) can occur in several myopathies. Transcranial magnetic stimulation (TMS) may represent a valuable tool for investigating important neurophysiological and pathophysiological aspects of cortical involvement in neuromuscular disorders. In this review paper we aimed to perform a systematic search of the studies employing TMS techniques in subjects suffering from myopathies. METHODS: A literature search was conducted using PubMed and Embase...
August 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28826019/stretch-reflex-threshold-modulation-during-active-elbow-movements-in-post-stroke-survivors-with-spasticity
#14
Nicolas A Turpin, Anatol G Feldman, Mindy F Levin
OBJECTIVES: Voluntary movements post-stroke are affected by abnormal muscle activation due to exaggerated stretch reflexes (SRs). We examined the ability of post-stroke subjects to regulate SRs in spastic muscles. METHODS: Elbow flexor and extensor EMGs and joint angle were recorded in 13 subjects with chronic post-stroke spasticity. Muscles were either stretched passively (relaxed arm) or actively (antagonist contraction) at different velocities. Velocity-dependent SR thresholds were defined as angles where stretched muscle EMG exceeded 3SDs of baseline...
August 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28829982/pre-movement-planning-processes-in-people-with-congenital-mirror-movements
#15
E A Franz, Y Fu
OBJECTIVE: Pre-movement processes were investigated in people with Congenital mirrormovement (CMM), a rare disorder in which bilateral movement (mirroring) occurs in the upper distal extremities (primarily the hands and fingers) during intended unilateral movements. Abnormal density of ipsilateral corticospinal projections is an established hallmark of CMM. This study tested whether the Lateralised Readiness Potential (LRP), which reflects movement planning and readiness, is also abnormal in people with CMM...
August 2, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28838816/reply-to-axonal-hyperexcitability-due-to-schwann-cell-involvement-in-chronic-progressive-external-ophthalmoplegia
#16
LETTER
Antoine Guéguen, Claude Jardel, Marc Polivka, S Veronica Tan, Françoise Gray, Catherine Vignal, Anne Lombès, Olivier Gout, Hugh Bostock
No abstract text is available yet for this article.
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28826021/eeg-arousal-regulation-as-predictor-of-treatment-response-in-patients-suffering-from-obsessive-compulsive-disorder
#17
Anna-Lena Dohrmann, Katarina Stengler, Ina Jahn, Sebastian Olbrich
OBJECTIVES: Aim of this study was to analyze whether electroencephalogram (EEG)-based CNS-arousal markers differ for patients suffering from obsessive compulsive disorder (OCD) that either respond or do not respond to cognitive behavioral therapy (CBT), selective serotonin reuptake inhibitors (SSRIs) or their combination. Further the study aimed to identify specific response-predictors for the different therapy approaches. METHODS: CNS-arousal from 51 unmedicated patients during fifteen-minute resting state was assessed using VIGALL (Vigilance Algorithm Leipzig)...
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28826016/fine-motor-skills-predict-performance-in-the-jebsen-taylor-hand-function-test-after-stroke
#18
Kathrin Allgöwer, Joachim Hermsdörfer
OBJECTIVE: To determine factors characterizing the differences in fine motor performance between stroke patients and controls. To confirm the relevance of the factors by analyzing their predictive power with regard to the Jebsen Taylor Hand Function Test (JTHFT), a common clinical test of fine motor control. METHODS: Twenty-two people with slight paresis in an early chronic phase following stroke and twenty-two healthy controls were examined. Performance on the JTHFT, Nine-Hole Peg Test and 2-point discrimination was evaluated...
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28818554/reply-to-prolongation-of-terminal-latency-of-the-phrenic-nerve-in-amyotrophic-lateral-sclerosis-is-it-clinically-useful-and-what-are-the-mechanisms
#19
LETTER
Jin-Sung Park, Donghwi Park
No abstract text is available yet for this article.
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28811105/axonal-hyperexcitability-due-to-schwann-cell-involvement-in-chronic-progressive-external-ophthalmoplegia
#20
LETTER
Josef Finsterer, Sinda Zarrouk-Mahjoub
No abstract text is available yet for this article.
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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