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Clinical Utility of Evoked Potentials

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Atrophy of optic nerve detected by transorbital sonography in patients with demyelinating diseases of the central nervous system.

C Schroeder, A H Katsanos, I Ayzenberg, C Schwake, A Gahlen, G Tsivgoulis, K Voumvourakis, R Gold, C Krogias,

BACKGROUND AND PURPOSE:Transorbital sonography (TOS) has emerged as promising imaging method for the diagnosis and follow-up of acute optic neuritis (ON). Available studies report an increase in the optic nerve diameter (OND) and the optic nerve sheath diameter (ONSD) in the case of a first episode of ON in the ... Read more >>

Eur. J. Neurol. (European journal of neurology)
[2020, 27(4):626-632]

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Could Transcranial Direct Current Stimulation Join the Therapeutic Armamentarium in Obsessive-Compulsive Disorder?

Moussa A Chalah, Samar S Ayache,

Obsessive-compulsive disorder (OCD) is a mental disorder that can affect around 1-3% of individuals [...]. ... Read more >>

Brain Sci (Brain sciences)
[2020, 10(2):]

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Somatosensory Evoked Potentials and Neuroprognostication After Cardiac Arrest.

Brittany Lachance, Zhuoran Wang, Neeraj Badjatia, Xiaofeng Jia,

Improved understanding of post-cardiac arrest syndrome and clinical practices such as targeted temperature management have led to improved mortality in this cohort. Attention has now been placed on development of tools to aid in predicting functional outcome in comatose cardiac arrest survivors. Current practice uses a multimodal approach including physical ... Read more >>

Neurocrit Care (Neurocritical care)
[2020, :]

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Striatal and Thalamic Auditory Response During Deep Brain Stimulation for Essential Tremor: Implications for Psychosis.

Judith M Gault, John A Thompson, Keeran Maharajh, Patrick Hosokawa, Karen E Stevens, Ann Olincy, Erin I Liedtke, Alex Ojemann, Steven Ojemann, Aviva Abosch,

INTRODUCTION:The P50, a positive auditory-evoked potential occurring 50 msec after an auditory click, has been characterized extensively with electroencephalography (EEG) to detect aberrant auditory electrophysiology in disorders like schizophrenia (SZ) where 61-74% have an auditory gating deficit. The P50 response occurs in primary auditory cortex and several thalamocortical regions. In rodents, ... Read more >>

Neuromodulation (Neuromodulation : journal of the International Neuromodulation Society)
[2020, :]

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Toward Improving Diagnostic Strategies in Chronic Disorders of Consciousness: An Overview on the (Re-)Emergent Role of Neurophysiology.

Luana Billeri, Serena Filoni, Emanuele Francesco Russo, Simona Portaro, David Militi, Rocco Salvatore Calabrò, Antonino Naro,

The differential diagnosis of patients with Disorder of Consciousness (DoC), in particular in the chronic phase, is significantly difficult. Actually, about 40% of patients with unresponsive wakefulness syndrome (UWS) and the minimally conscious state (MCS) are misdiagnosed. Indeed, only advanced paraclinical approaches, including advanced EEG analyses, can allow achieving a ... Read more >>

Brain Sci (Brain sciences)
[2020, 10(1):]

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Persistent postural-perceptual dizziness: Clinical and neurophysiological study.

Ivan Adamec, Snježana Juren Meaški, Magdalena Krbot Skorić, Katharina Jažić, Luka Crnošija, Iva Milivojević, Mario Habek,

The aim of this study was to evaluate clinical and neurophysiological characteristics of Persistent postural-perceptual dizziness (PPPD) in a tertiary vertigo clinic. This was a cross-sectional study that included consecutive patients examined in the Vertigo clinic of the University Hospital Center Zagreb, Croatia. The following data were extracted from the ... Read more >>

J Clin Neurosci (Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia)
[2020, 72:26-30]

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Tailoring Subthalamic Nucleus Deep Brain Stimulation for Parkinson's Disease Using Evoked Resonant Neural Activity.

Wesley Thevathasan, Nicholas C Sinclair, Kristian J Bulluss, Hugh J McDermott,

Front Hum Neurosci (Frontiers in Human Neuroscience)
[2020, 14:71]

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Transcranial photoacoustic imaging of NMDA-evoked focal circuit dynamics in rat hippocampus.

Jeeun Kang, Shilpa Kadam, Joshua Elmore, Brennan Sullivan, Heather Valentine, Adarsha Malla, Maged Harraz, Arman Rahmim, Jin U Kang, Leslie M Loew, Michael Baumann, Anthony Grace, Albert Gjedde, Emad M Boctor, Dean F Wong,

We report the transcranial fPA neuroimaging of N-methyl-D-aspartate (NMDA) evoked neural activity in rat hippocampus. Concurrent quantitative EEG (qEEG) and microdialysis recorded real-time circuit dynamics and excitatory neurotransmitter concentrations, respectively. We hypothesized that location-specific fPA VSD contrast would identify neural activity changes in hippocampus which correlate with NMDA-evoked excitatory neurotransmission. ... Read more >>

J Neural Eng (Journal of neural engineering)
[2020, :]

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The FAST graph: A novel framework for the anatomically-guided visualization and analysis of cortico-cortical evoked potentials.

Kenneth N Taylor, Anand A Joshi, Jian Li, Jorge A Gonzalez-Martinez, Xiaofeng Wang, Richard M Leahy, Dileep R Nair, John C Mosher,

BACKGROUND:Intracerebral electroencephalography (iEEG) using stereoelectroencephalography (SEEG) methodology for epilepsy surgery gives rise to complex data sets. The neurophysiological data obtained during the in-patient period includes categorization of the evoked potentials resulting from direct electrical cortical stimulation such as cortico-cortical evoked potentials (CCEPs). These potentials are recorded by hundreds of contacts, ... Read more >>

Epilepsy Res. (Epilepsy research)
[2020, 161:106264]

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ERP markers are associated with neurodevelopmental outcomes in 1-5 month old infants in rural Africa and the UK.

Laura Katus, Luke Mason, Bosiljka Milosavljevic, Samantha McCann, Maria Rozhko, Sophie E Moore, Clare E Elwell, Sarah Lloyd-Fox, Michelle de Haan, ,

INTRODUCTION:Infants and children in low- and middle-income countries are frequently exposed to a range of poverty-related risk factors, increasing their likelihood of poor neurodevelopmental outcomes. There is a need for culturally objective markers, which can be used to study infants from birth, thereby enabling early identification and ultimately intervention during ... Read more >>

Neuroimage (NeuroImage)
[2020, 210:116591]

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Editorial: Neuromodulatory Control of Brainstem Function in Health and Disease.

Brian R Noga, Ioan Opris, Mikhail A Lebedev, Gordon S Mitchell,

Front Neurosci (Frontiers in neuroscience)
[2020, 14:86]

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Human-Induced Neurons from Presenilin 1 Mutant Patients Model Aspects of Alzheimer's Disease Pathology.

Sean Schrank, John McDaid, Clark A Briggs, Sarah Mustaly-Kalimi, Deanna Brinks, Aiden Houcek, Oded Singer, Virginie Bottero, Robert A Marr, Grace E Stutzmann,

Traditional approaches to studying Alzheimer's disease (AD) using mouse models and cell lines have advanced our understanding of AD pathogenesis. However, with the growing divide between model systems and clinical therapeutic outcomes, the limitations of these approaches are increasingly apparent. Thus, to generate more clinically relevant systems that capture pathological ... Read more >>

Int J Mol Sci (International journal of molecular sciences)
[2020, 21(3):]

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Validating the Utility of High Frequency Ocular Vestibular Evoked Myogenic Potential Testing in the Diagnosis of Superior Semicircular Canal Dehiscence.

Kenny Lin, Ryan Lahey, Rachel Beckley, Dennis Bojrab, Brent Wilkerson, Emily Johnson, Seilesh Babu, Robert S Hong,

INTRODUCTION:Ocular vestibular evoked myogenic potential (oVEMP) is a diagnostic test employed in the evaluation of superior semicircular canal dehiscence (SSCD) syndrome. Previous work showed that the presence of the n10 component of oVEMP at 4000 Hz was diagnostic of SSCD with perfect sensitivity and specificity of 1.0 in a series of ... Read more >>

Otol. Neurotol. (Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology)
[2019, 40(10):1353-1358]

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Utilizing Electrocochleography as a Microphone for Fully Implantable Cochlear Implants.

William Jason Riggs, Meghan M Hiss, Jeffrey Skidmore, Varun V Varadarajan, Jameson K Mattingly, Aaron C Moberly, Oliver F Adunka,

Current cochlear implants (CIs) are semi-implantable devices with an externally worn sound processor that hosts the microphone and sound processor. A fully implantable device, however, would ultimately be desirable as it would be of great benefit to recipients. While some prototypes have been designed and used in a few select ... Read more >>

Sci Rep (Scientific reports)
[2020, 10(1):3714]

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Utility of intraoperative electromyography in placing C7 pedicle screws.

Jonathan J Rasouli, Brooke T Kennamer, Frank M Moore, Alfred Steinberger, Kevin C Yao, Omar N Syed, Marc S Arginteanu, Yakov Gologorsky,

OBJECTIVE:The C7 vertebral body is morphometrically unique; it represents the transition from the subaxial cervical spine to the upper thoracic spine. It has larger pedicles but relatively small lateral masses compared to other levels of the subaxial cervical spine. Although the biomechanical properties of C7 pedicle screws are superior to ... Read more >>

J Neurosurg Spine (Journal of neurosurgery. Spine)
[2020, :1-9]

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The Utility of Preoperative Neuromonitoring for Adolescent Idiopathic Scoliosis.

Sohrab Virk, Jan Klamar, Allan Beebe, Debabrata Ghosh, Walter Samora,

Background:Intraoperative neuromonitoring is well established and widely used to assist in completing corrective surgery for adolescent idiopathic scoliosis (AIS) safely. The role of preoperative measurement of somatosensory evoked potentials (SSEPs) and/or transcranial magnetic stimulation (TMS) to determine if there is transpinal pathology, however, is not clear. We sought to determine ... Read more >>

Int J Spine Surg (International Journal of Spine Surgery)
[2019, 13(4):317-320]

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The Use of Intraoperative Neurophysiological Monitoring in Spine Surgery.

Anastasios Charalampidis, Fan Jiang, Jamie R F Wilson, Jetan H Badhiwala, Darrel S Brodke, Michael G Fehlings,

Study Design:Narrative review. Objective:To summarize relevant studies regarding the utilization of intraoperative neurophysiological monitoring (IONM) techniques in spine surgery implemented in recent years. Methods:A literature search of the Medline database was performed. Relevant studies from all evidence levels have been included. Titles, abstracts, and reference lists of key articles were ... Read more >>

Global Spine J (Global spine journal)
[2020, 10(1 Suppl):104S-114S]

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Case for a new corticosteroid treatment trial in optic neuritis: review of updated evidence.

Axel Petzold, Tasanee Braithwaite, Bob W van Oosten, Lisanne Balk, Elena H Martinez-Lapiscina, Russell Wheeler, Nils Wiegerinck, Christiaan Waters, Gordon T Plant,

J. Neurol. Neurosurg. Psychiatry (Journal of neurology, neurosurgery, and psychiatry)
[2020, 91(1):9-14]

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Indexing Executive Functions with Test Scores, Parent Ratings and ERPs: How Do the Measures Relate in Children versus Adolescents with ADHD?

Linda Angelica Häger, Geir Øgrim, Maria Danielsen, Eva Billstedt, Christopher Gillberg, Jakob Åsberg Johnels,

Objective:Rating scales and neuropsychological tests including continuous performance tests (CPTs) are widely used to assess executive functions (EFs). Event-related potentials (ERPs) are also used to index certain EFs such as action preparation and inhibition. In this descriptive study, we examined the associations between results on an EF rating scale, a ... Read more >>

Neuropsychiatr Dis Treat (Neuropsychiatric disease and treatment)
[2020, 16:465-477]

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Pharmacological characterization of the novel and selective α7 nicotinic acetylcholine receptor positive allosteric modulator BNC375.

Xiaohai Wang, Christopher Daley, Vanita Gakhar, Henry Lange, Joshua D Vardigan, Michelle Pearson, Xiaoping Zhou, Lee Warren, Corin O Miller, Michelle Belden, Andrew J Harvey, Anton A Grishin, Carolyn J Coles, Susan M O'Connor, Fiona Thomson, Joseph L Duffy, Ian M Bell, Jason M Uslaner,

Treatments for cognitive deficits associated with CNS disorders such as Alzheimer's disease (AD) and schizophrenia remain significant unmet medical needs that incur substantial pressure on the healthcare system. The α7 nicotinic acetylcholine receptor (nAChR) has garnered substantial attention as a target for cognitive deficits based on receptor localization, robust preclinical ... Read more >>

J. Pharmacol. Exp. Ther. (The Journal of pharmacology and experimental therapeutics)
[2020, :]

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Motor Evoked Potentials in Hereditary Spastic Paraplegia-A Systematic Review.

Sue-Faye Siow, Ruaridh Cameron Smail, Karl Ng, Kishore R Kumar, Carolyn M Sue,

Background: Hereditary Spastic Paraplegia (HSP) is a slowly progressive neurodegenerative disorder with no disease modifying treatment. Potential therapeutic approaches are emerging and large-scale clinical drug trials for patients with HSP are imminent. A sensitive biomarker to measure the drug efficacy in these trials is required. Motor evoked potentials (MEPs) are ... Read more >>

Front Neurol (Frontiers in Neurology)
[2019, 10:967]

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Electrophysiological Mechanisms Underlying Time-Dependent Assessments in Moral Decision-Making.

Jin Ho Yun, Jing Zhang, Eun-Ju Lee,

Human decision-making that involves moral dilemmas is a complex process, as individuals try to adhere to their moral values while their actual decisions can be influenced by several situational constraints. When facing a moral conflict that can bring a gain or loss for a decision-maker but a corresponding loss or ... Read more >>

Front Neurosci (Frontiers in Neuroscience)
[2019, 13:1021]

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Effects of priming intermittent theta burst stimulation on upper limb motor recovery after stroke: study protocol for a proof-of-concept randomised controlled trial.

Jack Jiaqi Zhang, Kenneth N K Fong,

INTRODUCTION:Intermittent theta burst stimulation (iTBS), a form of repetitive transcranial magnetic stimulation (rTMS), delivered to the ipsilesional primary motor cortex (M1), appears to enhance the brain's response to rehabilitative training in patients with stroke. However, its clinical utility is highly subject to variability in different protocols. New evidence has reported ... Read more >>

BMJ Open (BMJ open)
[2020, 10(3):e035348]

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Neurophysiological Correlates of Concussion: Deep Learning for Clinical Assessment.

Rober Boshra, Kyle I Ruiter, Carol DeMatteo, James P Reilly, John F Connolly,

Concussion has been shown to leave the afflicted with significant cognitive and neurobehavioural deficits. The persistence of these deficits and their link to neurophysiological indices of cognition, as measured by event-related potentials (ERP) using electroencephalography (EEG), remains restricted to population level analyses that limit their utility in the clinical setting. ... Read more >>

Sci Rep (Scientific reports)
[2019, 9(1):17341]

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The Prognostic Value of Somatosensory Evoked Potentials in Children After Cardiac Arrest: The SEPIA Study.

William M McDevitt, Tracey A Rowberry, Paul Davies, Peter R Bill, Lesley M Notghi, Kevin P Morris, Barnaby R Scholefield,

PURPOSE:Absent cortical somatosensory evoked potentials (SSEPs) reliably predict poor neurologic outcome in adults after cardiac arrest (CA). However, there is less evidence to support this in children. In addition, targeted temperature management, test timing, and a lack of blinding may affect test accuracy. METHODS:A single-center, prospective cohort study of pediatric ... Read more >>

J Clin Neurophysiol (Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society)
[2019, :]

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