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Transcranial stimulation

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https://www.readbyqxmd.com/read/29785673/the-impact-of-transcranial-direct-current-stimulation-tdcs-on-bipolar-depression-mania-and-euthymia-a-systematic-review-of-preliminary-data
#1
Clément Dondé, Nicholas H Neufeld, Pierre A Geoffroy
The neurobiological basis of bipolar disorders (BD) has received increased attention and several brain regions and brain circuits have been correlated with clinical symptoms. These brain regions and circuits may represent targets for neuromodulation techniques such as transcranial Direct Current Stimulation (tDCS). We systematically reviewed the literature to explore the risks and benefits of tDCS in BD and examined all mood states. Following the PRISMA guidelines, a systematic literature search using several databases was performed from April 2002 to June 2017...
May 21, 2018: Psychiatric Quarterly
https://www.readbyqxmd.com/read/29784589/tolerability-and-blinding-of-4x1-high-definition-transcranial-direct-current-stimulation-hd-tdcs-at-two-and-three-milliamps
#2
Jaclyn Reckow, Annalise Rahman-Filipiak, Sarah Garcia, Stephen Schlaefflin, Oliver Calhoun, Alexandre F DaSilva, Marom Bikson, Benjamin M Hampstead
BACKGROUND: Transcranial direct current stimulation (tDCS) is an in-demand form of neuromodulation generally regarded as safe and well tolerated. However, few studies have examined the safety, tolerability, or blinding of High Definition (HD-) tDCS, especially in older adults and at stimulation intensities of 2 milliamps (mA) or greater. OBJECTIVE: We examined the rates of serious adverse events and common side effects to establish safety and tolerability, respectively, in HD-tDCS...
May 4, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29784588/brain-stimulation-patterns-emulating-endogenous-thalamocortical-input-to-parvalbumin-expressing-interneurons-reduce-nociception-in-mice
#3
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/29784557/case-series-investigating-the-cortical-silent-period-after-burns-using-transcranial-magnetic-stimulation
#4
Tessa Garside, Fiona M Wood, Ann-Maree Vallence
OBJECTIVE: The study aimed to investigate intracortical inhibition following a burn injury, and to establish transcranial magnetic stimulation (TMS) as a useful and sensitive tool to investigate the cortical response to a burn injury. METHODS: Thirteen burn injured patients and 12 uninjured subjects underwent TMS to measure the cortical silent period (cSP), a marker of intracortical inhibition. RESULTS: In burn injury patients, cSP was similar in the burn-injured and less-injured arm (133 and 132ms respectively; p=0...
May 18, 2018: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29783893/the-effects-of-transcranial-direct-current-stimulation-tdcs-combined-with-group-exercise-treatment-in-subjects-with-chronic-low-back-pain-a-pilot-randomized-control-trial
#5
Sofia Straudi, Sergio Buja, Andrea Baroni, Claudia Pavarelli, Giulia Pranovi, Felipe Fregni, Nino Basaglia
OBJECTIVE: To test the efficacy of transcranial direct current stimulation (tDCS) in addition to group exercise on non-specific chronic low back pain. DESIGN: Double-blinded randomized control trial. SUBJECTS: Patients with non-specific chronic low back pain. METHODS: A total of 35 subjects were recruited and allocated to real- or sham-tDCS followed by a group exercise protocol. Each patient underwent five sessions of brain stimulation followed by 10 sessions of group exercise...
May 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29782510/individual-differences-in-learning-correlate-with-modulation-of-brain-activity-induced-by-transcranial-direct-current-stimulation
#6
Brian Falcone, Atsushi Wada, Raja Parasuraman, Daniel E Callan
Transcranial direct current stimulation (tDCS) has been shown to enhance cognitive performance on a variety of tasks. It is hypothesized that tDCS enhances performance by affecting task related cortical excitability changes in networks underlying or connected to the site of stimulation facilitating long term potentiation. However, many recent studies have called into question the reliability and efficacy of tDCS to induce modulatory changes in brain activity. In this study, our goal is to investigate the individual differences in tDCS induced modulatory effects on brain activity related to the degree of enhancement in performance, providing insight into this lack of reliability...
2018: PloS One
https://www.readbyqxmd.com/read/29780572/cognitive-training-and-transcranial-direct-current-stimulation-for-mild-cognitive-impairment-in-parkinson-s-disease-a-randomized-controlled-trial
#7
Blake J Lawrence, Natalie Gasson, Andrew R Johnson, Leon Booth, Andrea M Loftus
This study examined whether standard cognitive training, tailored cognitive training, transcranial direct current stimulation (tDCS), standard cognitive training + tDCS, or tailored cognitive training + tDCS improved cognitive function and functional outcomes in participants with PD and mild cognitive impairment (PD-MCI). Forty-two participants with PD-MCI were randomized to one of six groups: (1) standard cognitive training, (2) tailored cognitive training, (3) tDCS, (4) standard cognitive training + tDCS, (5) tailored cognitive training + tDCS, or (6) a control group...
2018: Parkinson's Disease
https://www.readbyqxmd.com/read/29779818/fighting-obesity-non-pharmacological-interventions
#8
María Fernanda Higuera-Hernández, Elena Reyes-Cuapio, Marissa Gutiérrez-Mendoza, Nuno Barbosa Rocha, André Barciela Veras, Henning Budde, Johanna Jesse, Jaime Zaldívar-Rae, Carlos Blanco-Centurión, Sérgio Machado, Eric Murillo-Rodríguez
The abnormal or excessive fat accumulation that impairs health is one of the criteria that fulfills obesity. According to epidemiological data, obesity has become a worldwide public health problem that in turn would trigger additional pathologies such as cardiorespiratory dysfunctions, cancer, gastrointestinal disturbances, depression, sleep disorders, just to mention a few. Then, the search for a therapeutical intervention aimed to prevent and manage obesity has been the focus of study during the last years...
June 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29776859/increased-short-interval-intracortical-inhibition-in-un-medicated-patients-with-schizophrenia
#9
Martin Schecklmann, Carmen Weidler, Peter Eichhammer, Göran Hajak, Berthold Langguth
BACKGROUND: Schizophrenia is associated with changes in inhibitory and facilitatory brain networks which can be assessed by motor cortex excitability. OBJECTIVE: Here, we investigate differences between large cross-sectional samples of un-medicated and medicated patients with schizophrenia and healthy controls in single- and double-pulse transcranial magnetic stimulation parameters. METHODS: We measured right abductor digiti minimi muscle activity in 71 un-medicated, 43 medicated patients and 131 healthy controls...
May 4, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29776789/transdiagnostic-effects-of-ventromedial-prefrontal-cortex-transcranial-magnetic-stimulation-on-cue-reactivity
#10
Tonisha E Kearney-Ramos, Logan T Dowdle, Daniel H Lench, Oliver J Mithoefer, William H Devries, Mark S George, Raymond F Anton, Colleen A Hanlon
BACKGROUND: Elevated frontal and striatal reactivity to drug cues is a transdiagnostic hallmark of substance use disorders. The goal of these experiments was to determine if it is possible to decrease frontal and striatal reactivity to drug cues in both cocaine users and heavy alcohol users through continuous theta burst stimulation (cTBS) to the left ventromedial prefrontal cortex (VMPFC). METHODS: Two single-blinded, within-subject, active sham-controlled experiments were performed wherein neural reactivity to drug/alcohol cues versus neutral cues was evaluated immediately before and after receiving real or sham cTBS (110% resting motor threshold, 3600 pulses, Fp1 location; N = 49: 25 cocaine users [experiment 1], 24 alcohol users [experiment 2]; 196 total functional magnetic resonance imaging scans)...
April 10, 2018: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29776355/can-deep-transcranial-magnetic-stimulation-dtms-be-used-to-treat-substance-use-disorders-sud-a-systematic-review
#11
Karina Karolina Kedzior, Imke Gerkensmeier, Maria Schuchinsky
BACKGROUND: Deep transcranial magnetic stimulation (DTMS) is a non-invasive method of stimulating widespread cortical areas and, presumably, deeper neural networks. The current study assessed the effects of DTMS in the treatment of substance use disorders (SUD) using a systematic review. METHODS: Electronic literature search (PsycInfo, Medline until April 2017) identified k = 9 studies (k = 4 randomized-controlled trials, RCTs, with inactive sham and k = 5 open-label studies)...
May 18, 2018: BMC Psychiatry
https://www.readbyqxmd.com/read/29775218/unilateral-movement-preparation-causes-task-specific-modulation-of-tms-responses-in-the-passive-opposite-limb
#12
Lilian Chye, Stephan Riek, Aymar de Rugy, Richard G Carson, Timothy J Carroll
Corticospinal excitability is modulated for muscles on both sides of the body during unilateral movement preparation. For the effector, there is a progressive increase in excitability, and a shift in direction of muscle twitches evoked by transcranial magnetic stimulation (TMS) toward the impending movement. By contrast, the directional characteristics of excitability changes in the opposite (passive) limb have not been fully characterized. Here we assessed how preparation of voluntary forces towards four spatially distinct visual targets with the left wrist alters muscle twitches and motor evoked potentials (MEPs) elicited by TMS of left motor cortex...
May 18, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29775149/added-value-of-multiple-versus-single-sessions-of-repetitive-transcranial-magnetic-stimulation-in-predicting-motor-cortex-stimulation-efficacy-for-refractory-neuropathic-pain
#13
Benjamin Pommier, Charles Quesada, Camille Fauchon, Christophe Nuti, François Vassal, Roland Peyron
OBJECTIVE Selection criteria for offering patients motor cortex stimulation (MCS) for refractory neuropathic pain are a critical topic of research. A single session of repetitive transcranial magnetic stimulation (rTMS) has been advocated for selecting MCS candidates, but it has a low negative predictive value. Here the authors investigated whether multiple rTMS sessions would more accurately predict MCS efficacy. METHODS Patients included in this longitudinal study could access MCS after at least four rTMS sessions performed 3-4 weeks apart...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29774621/increase-of-frontal-cerebral-blood-volume-during-transcranial-magnetic-stimulation-in-depression-is-related-to-treatment-effectiveness-a-pilot-study-with-near-infrared-spectroscopy
#14
Toshikazu Shinba, Nobutoshi Kariya, Saori Matsuda, Hanae Matsuda, Yusuke Obara
AIM: Alterations of cerebral blood flow have been reported in studies of depression treated by transcranial magnetic stimulation (TMS). However, the relationship between these changes in activity during stimulation and the effectiveness of TMS is not known. The aim of this study was to determine whether changes in frontal cerebral blood volume measured as frontal hemoglobin concentration (fHbC) during TMS are correlated with clinical outcomes of treatment. METHODS: Fifteen drug-resistant patients with depression underwent a standard treatment regimen of TMS to the left dorsolateral prefrontal cortex...
May 18, 2018: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/29773908/non-predictive-online-spatial-coding-in-the-posterior-parietal-cortex-when-aiming-ahead-for-catching
#15
Sinéad A Reid, Joost C Dessing
Catching movements must be aimed ahead of the moving ball, which may require predictions of when and where to catch. Here, using repetitive Transcranial Magnetic Stimulation we show for the first time that the Superior Parietal Occipital Cortex (SPOC) displays non-predictive online spatial coding at the moment the interception movements were already aimed at the predicted final target position. The ability to aim ahead for catching must thus arise downstream within the parietofrontal network for reaching.
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773509/the-role-of-the-inferior-frontal-gyrus-in-vicarious-social-touch-a-transcranial-direct-current-stimulation-tdcs-study
#16
Leehe Peled-Avron, Laura Glasner, Hila Z Gvirts, Simone G Shamay-Tsoory
The neural mechanisms facilitating the experience of vicarious social touch are largely unknown. The right inferior frontal gyrus (rIFG) has been suggested as part of a simulation observation-execution neural network that plays a key role in the perception of tactile stimuli. Considering that vicarious social touch involves vicarious sharing of emotions, we hypothesized that emotional empathy, i.e., the ability to feel what another individual is feeling, modulates the neural responses to vicarious touch. To examine the role of the rIFG in vicarious touch and its modulation by levels of emotional empathy, we used anodal transcranial direct current stimulation (tDCS) on forty participants who observed photos depicting social touch, nonsocial touch or no touch during tDCS or sham stimulation...
April 30, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29770647/neuromodulation-for-tinnitus-treatment-an-overview-of-invasive-and-non-invasive-techniques
#17
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/29770150/effect-of-cathodal-transcranial-direct-current-stimulation-on-a-child-with-involuntary-movement-after-hypoxic-encephalopathy
#18
Mayumi Nagai, Naofumi Tanaka, Yutaka Oouchida, Shin-Ichi Izumi
The aim of the study was to investigate the effect of cathodal transcranial direct current stimulation to the supplementary motor area to inhibit involuntary movements of a child. An 8-year-old boy who developed hypoxic encephalopathy after asphyxia at the age of 2 had difficulty in remaining standing without support because of involuntary movements. He was instructed to remain standing with his plastic ankle-foot orthosis for 10 s at three time points by leaning forward with his forearms on a desk. He received cathodal or sham transcranial direct current stimulation to the supplementary motor area at 1 mA for 10 min...
2018: Case Reports in Medicine
https://www.readbyqxmd.com/read/29770146/effects-of-20-hz-repetitive-transcranial-magnetic-stimulation-on-disorders-of-consciousness-a-resting-state-electroencephalography-study
#19
Fangping He, Min Wu, Fanxia Meng, Yangfan Hu, Jian Gao, Zhongqin Chen, Wangxiao Bao, Kehong Liu, Benyan Luo, Gang Pan
Repetitive transcranial magnetic stimulation (rTMS) has been proposed as an experimental approach for the treatment of disorders of consciousness (DOC). To date, there has been little research into the use of rTMS in DOC and the therapeutic effects have been variously documented. This study aimed to examine the effects of 20 Hz rTMS on the electroencephalography (EEG) reactivity and clinical response in patients with DOC and to explore the neuromodulatory effects of high-frequency rTMS. In this randomized, sham-controlled, crossover study, real or sham 20 Hz rTMS was applied to the left primary motor cortex (M1) of patients with DOC for 5 consecutive days...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/29767351/evaluating-the-methods-used-for-measuring-cerebral-blood-flow-at-rest-and-during-exercise-in-humans
#20
REVIEW
Michael M Tymko, Philip N Ainslie, Kurt J Smith
The first accounts of measuring cerebral blood flow (CBF) in humans were made by Angelo Mosso in ~1880, who recorded brain pulsations in patients with skull defects. In 1890, Charles Roy and Charles Sherrington determined in animals that brain pulsations-assessed via a similar method used by Mosso-were altered during a variety of stimuli including sensory nerve stimulation, asphyxia, and pharmacological interventions. Between 1880 and 1944, measurements for CBF were typically relied on skull abnormalities in humans...
May 16, 2018: European Journal of Applied Physiology
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