keyword
MENU ▼
Read by QxMD icon Read
search

Transcranial electric stimulation

keyword
https://www.readbyqxmd.com/read/29784588/brain-stimulation-patterns-emulating-endogenous-thalamocortical-input-to-parvalbumin-expressing-interneurons-reduce-nociception-in-mice
#1
Yeowool Huh, Dahee Jung, Taeyoon Seo, Sukkyu Sun, Su Hyun Kim, Hyewhon Rhim, Sooyoung Chung, Chong-Hyun Kim, Youngwoo Kwon, Marom Bikson, Yong-An Chung, Jeansok J Kim, Jeiwon Cho
BACKGROUND: The bursting pattern of thalamocortical (TC) pathway dampens nociception. Whether brain stimulation mimicking endogenous patterns can engage similar sensory gating processes in the cortex and reduce nociceptive behaviors remains uninvestigated. OBJECTIVE: We investigated the role of cortical parvalbumin expressing (PV) interneurons within the TC circuit in gating nociception and their selective response to TC burst patterns. We then tested if transcranial magnetic stimulation (TMS) patterned on endogenous nociceptive TC bursting modulate nociceptive behaviors...
May 18, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29770647/neuromodulation-for-tinnitus-treatment-an-overview-of-invasive-and-non-invasive-techniques
#2
REVIEW
Nicole Peter, Tobias Kleinjung
Tinnitus is defined as a perception of sound without any external sound source. Chronic tinnitus is a frequent condition that can affect the quality of life. So far, no causal cure for tinnitus has been documented, and most pharmacologic and psychosomatic treatment modalities aim to diminish tinnitus' impact on the quality of life. Neuromodulation, a novel therapeutic modality, which aims at alternating nerve activity through a targeted delivery of a stimulus, has emerged as a potential option in tinnitus treatment...
March 12, 2018: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/29766458/cerebellar-stimulation-evoked-prefrontal-electrical-synchrony-is-modulated-by-gaba
#3
Xiaoming Du, Laura M Rowland, Ann Summerfelt, Fow-Sen Choa, George F Wittenberg, Krista Wisner, Andrea Wijtenburg, Joshua Chiappelli, Peter Kochunov, L Elliot Hong
Cerebellar-prefrontal connectivity has been recognized as important for behaviors ranging from motor coordination to cognition. Many of these behaviors are known to involve excitatory or inhibitory modulations from the prefrontal cortex. We used cerebellar transcranial magnetic stimulation (TMS) with simultaneous electroencephalography (EEG) to probe cerebellar-evoked electrical activity in prefrontal cortical areas and used magnetic resonance spectroscopy (MRS) measures of prefrontal GABA and glutamate levels to determine if they are correlated with those potentials...
May 15, 2018: Cerebellum
https://www.readbyqxmd.com/read/29763453/anisotropic-conductivity-tensor-imaging-for-transcranial-direct-current-stimulation-tdcs-using-magnetic-resonance-diffusion-tensor-imaging-mr-dti
#4
Mun Bae Lee, Hyung Joong Kim, Eung Je Woo, Oh In Kwon
Transcranial direct current stimulation (tDCS) is a widely used non-invasive brain stimulation technique by applying low-frequency weak direct current via electrodes attached on the head. The tDCS using a fixed current between 1 and 2 mA has relied on computational modelings to achieve optimal stimulation effects. Recently, by measuring the tDCS current induced magnetic field using an MRI scanner, the internal current pathway has been successfully recovered. However, up to now, there is no technique to visualize electrical properties including the electrical anisotropic conductivity, effective extracellular ion-concentration, and electric field using only the tDCS current in-vivo...
2018: PloS One
https://www.readbyqxmd.com/read/29761991/-study-of-neuronal-spike-frequency-adaptation-with-transcranial-magneto-acoustical-stimulation
#5
Yi Yuan, Na Pang, Yudong Chen, Hongbao Sun, Xiaoli Li
Transcranial magneto-acoustical stimulation (TMAS), utilizing focused ultrasound and a magnetostatic field to generate an electric current in tissue fluid to regulate the activities of neurons, has high spatial resolution and penetration depth. The neuronal spike-frequency adaptation plays an important role in the treatment of neural information. In this paper, we study the effects of ultrasonic intensity, magnetostatic field intensity and ultrasonic frequency on the neuronal spike-frequency adaptation based on the Ermentrout neuron model...
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/29759942/tms-evoked-n100-reflects-local-gaba-and-glutamate-balance
#6
Xiaoming Du, Laura M Rowland, Ann Summerfelt, Andrea Wijtenburg, Joshua Chiappelli, Krista Wisner, Peter Kochunov, Fow-Sen Choa, L Elliot Hong
BACKGROUND: Animal studies suggest that synchronized electrical activities in the brain are regulated by the primary inhibitory and excitatory neurotransmitters gamma-aminobutyric acid (GABA) and glutamate, respectively. Identifying direct evidence that this same basic chemical-electrical neuroscience principle operates in the human brains is critical for translation of neuroscience to pathological research. OBJECTIVE/HYPOTHESIS: We hypothesize that the background neurochemical concentrations may affect the cortical excitability probed by transcranial magnetic stimulation (TMS)...
May 4, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29755590/wide-pulse-high-frequency-low-intensity-neuromuscular-electrical-stimulation-has-potential-for-targeted-strengthening-of-an-intrinsic-foot-muscle-a-feasibility-study
#7
Darren C James, Matthew C Solan, Katya N Mileva
Background: Strengthening the intrinsic foot muscles is a poorly understood and largely overlooked area. In this study, we explore the feasibility of strengthening m . abductor hallucis (AH) with a specific paradigm of neuromuscular electrical stimulation; one which is low-intensity in nature and designed to interleave physiologically-relevant low frequency stimulation with high-frequencies to enhance effective current delivery to spinal motoneurones, and enable a proportion of force produced by the target muscle to be generated from a central origin...
2018: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29754449/transcranial-alternating-current-stimulation-modulates-auditory-temporal-resolution-in-elderly-people
#8
Alina Baltus, Johannes Vosskuhl, Cindy Boetzel, Christoph Siegfried Herrmann
Recent research provides evidence for a functional role of brain oscillations for perception. For example, auditory temporal resolution seems to be linked to individual gamma frequency of auditory cortex. Individual gamma frequency not only correlates with performance in between-channel gap detection tasks but can be modulated via auditory transcranial alternating current stimulation. Modulation of individual gamma frequency is accompanied by an improvement in gap detection performance. Aging changes electrophysiological frequency components and sensory processing mechanisms...
May 13, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29741803/modulating-emotional-experience-using-electrical-stimulation-of-the-medial-prefrontal-cortex-a-preliminary-tdcs-fmri-study
#9
Rany Abend, Roy Sar-El, Tal Gonen, Itamar Jalon, Sharon Vaisvaser, Yair Bar-Haim, Talma Hendler
OBJECTIVES: Implicit regulation of emotions involves medial-prefrontal cortex (mPFC) regions exerting regulatory control over limbic structures. Diminished regulation relates to aberrant mPFC functionality and psychopathology. Establishing means of modulating mPFC functionality could benefit research on emotion and its dysregulation. Here, we tested the capacity of transcranial direct current stimulation (tDCS) targeting mPFC to modulate subjective emotional states by facilitating implicit emotion regulation...
May 9, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29740054/novel-bifunctional-cap-for-simultaneous-electroencephalography-and-transcranial-electrical-stimulation
#10
Sophia Wunder, Alexander Hunold, Patrique Fiedler, Falk Schlegelmilch, Klaus Schellhorn, Jens Haueisen
Neuromodulation induced by transcranial electric stimulation (TES) exhibited promising potential for clinical practice. However, the underlying mechanisms remain subject of research. The combination of TES and electroencephalography (EEG) offers great potential for investigating these mechanisms and brain function in general, especially when performed simultaneously. In conventional applications, the combination of EEG and TES suffers from limitations on the electrode level (gel for electrode-skin interface) and the usability level (preparation time, reproducibility of positioning)...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29738385/safe-intraoperative-neurophysiologic-monitoring-during-posterior-spinal-fusion-in-a-patient-with-cochlear-implants
#11
Godwin Abiola, Bryan Kevin Ward, Stephen Bowditch, Eva Katharina Ritzl, John Patrick Carey
OBJECTIVE: Cochlear implants are generally considered a contraindication for any procedure requiring electrical stimulation near the implant. We present a case of a patient undergoing intraoperative transcranial electrical motor-evoked potential monitoring with a cochlear implant without adverse outcomes. PATIENT: A 12-year-old girl with a history of VACTERL presented with worsening congenital kyphosis and bilateral severe-to-profound hearing loss. Since age 7 the patient used a cochlear implant in the right ear and hearing aid in the left ear...
June 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29736128/mechanism-of-repetitive-transcranial-magnetic-stimulation-for-depression
#12
REVIEW
Zhengwu Peng, Cuihong Zhou, Shanshan Xue, Jie Bai, Shoufen Yu, Xiaosa Li, Huaning Wang, Qingrong Tan
Depressive disorder is one of the most common mental health problems currently. However, the mechanism-based treatments for this disorder remain elusive. Repetitive transcranial magnetic stimulation (rTMS), a non-invasive procedure that could stimulate electrical activity by a pulsed magnetic field in the brain, is considered to be an effective treatment for depression. Here, we review the main findings from both clinical and basic research on rTMS for depression, including its antidepressant efficacy, basic principles, as well as its ability to regulate neural circuits, neurotransmitters and brain networks, neurogenesis in hippocampus, and synaptic, and molecular pathways...
April 25, 2018: Shanghai Archives of Psychiatry
https://www.readbyqxmd.com/read/29734883/is-transcranial-direct-current-stimulation-an-effective-modality-in-reducing-food-craving-a-systematic-review-and-meta-analysis
#13
Seyed-Ali Mostafavi, Ali Khaleghi, Mohammad Reza Mohammadi, Shahin Akhondzadeh
Non-invasive electrical stimulation of the brain has recently been extensively investigated to regulate food craving. However, the existing literature is controversial and there are some important questions which need to be addressed about clinical and technical factors contributing to efficacy of this method. A systematic search was performed in reliable scientific databases, and 15 eligible studies were identified. The pooled standardized mean differences for the effects of transcranial direct current stimulation (tDCS) on Visual Analogue Scale, energy intake and food craving questionnaire were -0...
May 7, 2018: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29729595/decrease-of-motor-cortex-excitability-following-exposure-to-a-20-hz-magnetic-field-as-generated-by-a-rotating-permanent-magnet
#14
Eugen Gallasch, Dietmar Rafolt, Magdalena Postruznik, Shane Fresnoza, Monica Christova
OBJECTIVES: Rotation of a static magnet over the motor cortex (MC) generates a transcranial alternating magnetic field (tAMF), and a linked alternating electrical field. The aim of this transcranial magnetic stimulation (TMS) study is to investigate whether such fields are able to influence MC excitability, and whether there are parallels to tACS induced effects. METHODS: Fourteen healthy volunteers received 20 Hz tAMF stimulation over the MC, over the vertex, and 20 Hz tACS over the MC, each with a duration of 15 min...
April 19, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29727454/differential-polarization-of-cortical-pyramidal-neuron-dendrites-through-weak-extracellular-fields
#15
Florian Aspart, Michiel W H Remme, Klaus Obermayer
The rise of transcranial current stimulation (tCS) techniques have sparked an increasing interest in the effects of weak extracellular electric fields on neural activity. These fields modulate ongoing neural activity through polarization of the neuronal membrane. While the somatic polarization has been investigated experimentally, the frequency-dependent polarization of the dendritic trees in the presence of alternating (AC) fields has received little attention yet. Using a biophysically detailed model with experimentally constrained active conductances, we analyze the subthreshold response of cortical pyramidal cells to weak AC fields, as induced during tCS...
May 4, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29704875/frequency-dependent-top-down-modulation-of-temporal-summation-by-anodal-transcranial-direct-current-stimulation-of-the-primary-motor-cortex-in-healthy-adults
#16
S Hughes, M Ali, P Sharma, N Insan, P H Strutton
BACKGROUND: Transcranial direct-current stimulation (tDCS) applied over the primary motor cortex has been shown to be effective in the treatment of a number of chronic pain conditions. However, there is a lack of understanding of the top-down analgesic mechanisms involved. METHOD: In this study, we investigated the effects of tDCS on the facilitation of subjective sensory and pain scores using a transcutaneous electrically-evoked measure of temporal summation. In this randomised, blinded, cross-over study healthy subjects received a single stimulus given at 0...
April 28, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29699821/atlas-of-optimal-coil-orientation-and-position-for-tms-a-computational-study
#17
Jose Gomez-Tames, Atsushi Hamasaka, Ilkka Laakso, Akimasa Hirata, Yoshikazu Ugawa
BACKGROUND: Transcranial magnetic stimulation (TMS) activates target brain structures in a non-invasive manner. The optimal orientation of the TMS coil for the motor cortex is well known and can be estimated using motor evoked potentials. However, there are no easily measurable responses for activation of other cortical areas and the optimal orientation for these areas is currently unknown. OBJECTIVE: This study investigated the electric field strength, optimal coil orientation, and relative locations to optimally stimulate the target cortex based on computed electric field distributions...
April 17, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29686816/evaluation-of-the-prognostic-value-of-multimodal-intraoperative-monitoring-in-posterior-fossa-surgery-patients-with-cerebellopontine-angle-tumors
#18
Mohsen Dalvandi, Ali Nazemi Rafie, Alireza Kamali, Alireza Jamshidifard
The aim of this study was to compare the outcomes of four intraoperative monitoring approaches in order to compare their prognostic value in surgical complications of the facial nerve. This quasi-experimental study was conducted on 25 patients with Cerebellopontine Angle (CPA) tumors, who were hospitalized in the Valiasr Hospital, affiliated to the Arak University of Medical Sciences, Arak, Iran. The degree of the facial nerve paralysis was assessed based on the House-Brackmann (HB) facial nerve grading system...
January 12, 2018: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29684047/effect-of-hypnotic-suggestion-on-knee-extensor-neuromuscular-properties-in-resting-and-fatigued-states
#19
Naiandra Dittrich, Daniel Agostino, Roberta Antonini Philippe, Luiz Guilherme A Guglielmo, Nicolas Place
PURPOSE: The aim of this study was to investigate whether hypnotic suggestions can alter knee extensor neuromuscular function at rest and during exercise. METHODS: Thirteen healthy volunteers (8 men and 5 women, 27 ± 3 years old) took part in this counterbalanced, crossover study including two experimental (hypnosis and control) sessions. Knee extensor neuromuscular function was tested before and after hypnosis suggestion by using a combination of voluntary contraction, transcutaneous femoral nerve electrical stimulation and transcranial magnetic stimulation (TMS)...
2018: PloS One
https://www.readbyqxmd.com/read/29682434/hypomania-risk-in-noninvasive-brain-stimulation
#20
REVIEW
Abhishek Gupta, Mahwish Adnan
Noninvasive brain stimulation, using electromagnetic waves (repetitive transcranial magnetic stimulation (rTMS)) and direct electrical current (transcranial direct current stimulation (tDCS)), is a new frontier in treating psychiatric maladies. While still being developed as viable treatment options, both options have had numerously reported side-effects, with hypomania being a significant concern during investigations. While there has been a relatively rare incidence of hypomania among rTMS/tDCS trials, it still posits an important issue regarding the safety of both treatment modalities...
February 19, 2018: Curēus
keyword
keyword
98885
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"