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Transcranial direct current stimulation

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https://www.readbyqxmd.com/read/28539894/modulation-of-brain-activity-with-noninvasive-transcranial-direct-current-stimulation-tdcs-clinical-applications-and-safety-concerns
#1
REVIEW
Haichao Zhao, Lei Qiao, Dongqiong Fan, Shuyue Zhang, Ofir Turel, Yonghui Li, Jun Li, Gui Xue, Antao Chen, Qinghua He
Transcranial direct current stimulation (tDCS) is a widely-used tool to induce neuroplasticity and modulate cortical function by applying weak direct current over the scalp. In this review, we first introduce the underlying mechanism of action, the brief history from discovery to clinical scientific research, electrode positioning and montages, and parameter setup of tDCS. Then, we review tDCS application in clinical samples including people with drug addiction, major depression disorder, Alzheimer's disease, as well as in children...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28539880/transcranial-direct-current-stimulation-and-sports-performance
#2
Dylan J Edwards, Mar Cortes, Susan Wortman-Jutt, David Putrino, Marom Bikson, Gary Thickbroom, Alvaro Pascual-Leone
No abstract text is available yet for this article.
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28536512/transcranial-direct-current-stimulation-of-the-temporoparietal-junction-and-inferior-frontal-cortex-improves-imitation-inhibition-and-perspective-taking-with-no-effect-on-the-autism-spectrum-quotient-score
#3
Satoshi Nobusako, Yuki Nishi, Yuki Nishi, Takashi Shuto, Daiki Asano, Michihiro Osumi, Shu Morioka
Lesions to brain regions such as the temporoparietal junction (TPJ) and inferior frontal cortex (IFC) are thought to cause autism-spectrum disorder (ASD). Previous studies indicated that transcranial direct current stimulation (tDCS) of the right TPJ improves social cognitive functions such as imitation-inhibition and perspective-taking. Although previous work shows that tDCS of the right IFC improves imitation-inhibition, its effects on perspective-taking have yet to be determined. In addition, the role of the TPJ and IFC in determining the Autism-Spectrum Quotient (AQ), which is a measure of autism spectrum traits, is still unclear...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28530336/-noninvasive-brain-stimulation-in-neuropsychiatric-disorders
#4
REVIEW
Doron Todder, Nimrod Grisaru, Zeev Kaplan
Noninvasive brain stimulation is a growing field of treatment for many neuropsychiatric problems. In this review, several of the more common brain stimulation devices are presented. Specifically, we will review Transcranial Magnetic Stimulation (TMS), Transcranial Direct Current Stimulation (tDCS), Alternating Current Stimulation (ACS), Infrared Stimulation, Electroencephalography Neurofeedback (EEG-NF) and functional Magnetic Resonance Imagining Neurofeedback (fMRI-NF). We will outline some of the properties of these devices including the mechanism, side effect profile, using sham for research and major future developments...
December 2016: Harefuah
https://www.readbyqxmd.com/read/28530154/determining-electrode-placement-for-transcranial-direct-current-stimulation-a-comparison-of-eeg-versus-tms-guided-methods
#5
Tonya L Rich, Jeremiah S Menk, Kyle D Rudser, Mo Chen, Gregg D Meekins, Edgar Peña, Timothy Feyma, Kay Bawroski, Christina Bush, Bernadette T Gillick
Transcranial direct current stimulation (tDCS) is increasingly researched as an adjuvant to motor rehabilitation for children with hemiparesis. The optimal method for the primary motor cortex (M1) somatotopic localization for tDCS electrode placement has not been established. The objective, therefore, was to determine the location of the M1 derived using the 10/20 electroencephalography (EEG) system and transcranial magnetic stimulation (TMS) in children with hemiparesis (CWH) and a comparison group of typically developing children (TDC)...
May 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28523976/the-application-of-tdcs-for-the-treatment-of-psychiatric-diseases
#6
Min-Fang Kuo, Po-See Chen, Michael A Nitsche
Neuroplasticity represents the dynamic structural and functional reorganization of the central nervous system, including its connectivity, due to environmental and internal demands. It is recognized as a major physiological basis for adaption of cognition and behaviour, and, thus, of utmost importance for normal brain function. Cognitive dysfunctions are major symptoms in psychiatric disorders, which are often associated with pathological alteration of neuroplasticity. Transcranial direct current stimulation (tDCS), a recently developed non-invasive brain stimulation technique, is able to induce and modulate cortical plasticity in humans via the application of relatively weak current through the scalp of the head...
April 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28523223/transcranial-direct-current-stimulation-may-modulate-extinction-memory-in-posttraumatic-stress-disorder
#7
Mascha Van't Wout, Sharon M Longo, Madhavi K Reddy, Noah S Philip, Marguerite T Bowker, Benjamin D Greenberg
BACKGROUND: Abnormalities in fear extinction and recall are core components of posttraumatic stress disorder (PTSD). Data from animal and human studies point to a role of the ventromedial prefrontal cortex (vmPFC) in extinction learning and subsequent retention of extinction memories. Given the increasing interest in developing noninvasive brain stimulation protocols for psychopathology treatment, we piloted whether transcranial direct current stimulation (tDCS) during extinction learning, vs...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28516033/the-impact-of-large-structural-brain-changes-in-chronic-stroke-patients-on-the-electric-field-caused-by-transcranial-brain-stimulation
#8
Sena Minjoli, Guilherme B Saturnino, Jakob Udby Blicher, Charlotte J Stagg, Hartwig R Siebner, André Antunes, Axel Thielscher
Transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (TDCS) are two types of non-invasive transcranial brain stimulation (TBS). They are useful tools for stroke research and may be potential adjunct therapies for functional recovery. However, stroke often causes large cerebral lesions, which are commonly accompanied by a secondary enlargement of the ventricles and atrophy. These structural alterations substantially change the conductivity distribution inside the head, which may have potentially important consequences for both brain stimulation methods...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28514807/can-transcranial-direct-current-stimulation-modulate-psychophysiological-response-in-sedentary-men-during-vigorous-aerobic-exercise
#9
Alexandre Hideki Okano, Daniel Gomes Silva Machado, Leônidas Oliveira Neto, Luiz Fernando Farias-Junior, Pedro Moraes Dutra Agrícola, Ademir Arruda, André Igor Fonteles, Li Min Li, Eduardo B Fontes, Hassan Mohamed Elsangedy, Alexandre Moreira
This study evaluated whether transcranial direct current stimulation (tDCS) could change physiological and psychological responses during vigorous exercise with a constant load. 13 sedentary males (23.0±4.2 years; 25.6±4.2 kg/m²) took part in this randomized, crossed-over, sham-controlled, and double-blinded study. Participants underwent 2 sessions with anodal or sham tDCS (2 mA, 20 min) applied before exercise over the left temporal cortex targeting the left insular cortex. The exercise was performed at vigorous intensity (%HRmax 81...
May 17, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28512443/transcranial-direct-current-stimulation-for-post-concussion-syndrome-study-protocol-for-a-randomized-crossover-trial
#10
Robson Luis Oliveira de Amorim, André Russowsky Brunoni, Mirian Akiko Furutani de Oliveira, Ana Luiza Costa Zaninotto, Marcia Mitie Nagumo, Vinícius Monteiro de Paula Guirado, Iuri Santana Neville, Gláucia Rosana Guerra Benute, Mara Cristina Souza de Lucia, Wellingson Silva Paiva, Almir Ferreira de Andrade, Manoel Jacobsen Teixeira
BACKGROUND: Mild traumatic brain injury (MTBI) represents 70-80% of all treated brain injuries. A considerable proportion of MTBI patients experience post-concussion symptoms for a prolonged period after MTBI, and these symptoms are diagnosed as persistent post-concussion syndrome (PPCS). PPCS is defined as a range of physical, cognitive, and emotional symptoms. However, memory and executive dysfunction seems to be one of the most debilitating symptoms. Recently, non-invasive brain stimulation has been studied as a potential treatment method for traumatic brain injury (TBI) patients...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28509625/direct-current-stimulation-does-little-to-improve-the-outcome-of-working-memory-training-in-older-adults
#11
Jonna Nilsson, Alexander V Lebedev, Anders Rydström, Martin Lövdén
The promise of transcranial direct-current stimulation (tDCS) as a modulator of cognition has appealed to researchers, media, and the general public. Researchers have suggested that tDCS may increase effects of cognitive training. In this study of 123 older adults, we examined the interactive effects of 20 sessions of anodal tDCS over the left prefrontal cortex (vs. sham tDCS) and simultaneous working memory training (vs. control training) on change in cognitive abilities. Stimulation did not modulate gains from pre- to posttest on latent factors of either trained or untrained tasks in a statistically significant manner...
May 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28506002/transcranial-direct-current-stimulation-combined-with-visuo-motor-training-as-treatment-for-chronic-stroke-patients
#12
Elena L Pavlova, Påvel Lindberg, Amirah Khan, Sigurd Ruschkowski, Michael A Nitsche, Jörgen Borg
BACKGROUND: Recent studies exploring the combined effect of motor learning and transcranial direct current stimulation (tDCS) for stroke rehabilitation have shown partially conflicting results. OBJECTIVE: To test the efficacy of an optimized hand training approach combined with tDCS in stroke patients. METHODS: In the present pilot study we investigated motor effects of four-week training with a visuomotor grip force tracking task combined with tDCS in 11 chronic stroke patients...
May 9, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28505987/improved-grasp-function-with-transcranial-direct-current-stimulation-in-chronic-spinal-cord-injury
#13
Mar Cortes, Ana Heloisa Medeiros, Aasta Gandhi, Peter Lee, Hermano Igo Krebs, Gary Thickbroom, Dylan Edwards
BACKGROUND: Recovering hand function has important implications for improving independence of patients with tetraplegia after traumatic spinal cord injury (SCI). Transcranial direct current stimulation (tDCS) is a noninvasive rehabilitation technique that has potential to improve motor function. OBJECTIVE: To investigate the effects of one session of 1 mA, 2 mA, and sham anodal tDCS (a-tDCS) in the upper extremity (hand) motor performance (grasp and lease) in patients with chronic cervical SCI...
May 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28505986/combined-transcranial-direct-current-stimulation-and-robotic-upper-limb-therapy-improves-upper-limb-function-in-an-adult-with-cerebral-palsy
#14
Kathleen M Friel, Peter Lee, Lindsey V Soles, Ana R P Smorenburg, Hsing-Ching Kuo, Dylan J Edwards
BACKGROUND: Robotic therapy can improve upper limb function in hemiparesis. Excitatory transcranial direct current stimulation (tDCS) can prime brain motor circuits before therapy. OBJECTIVE: We tested safety and efficacy of tDCS plus robotic therapy in an adult with unilateral spastic cerebral palsy (USCP). METHODS: In each of 36 sessions, anodal tDCS (2 mA, 20 min) was applied over the motor map of the affected hand. Immediately after tDCS, the participant completed robotic therapy, using the shoulder, elbow, and wrist (MIT Manus)...
May 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28505499/clinical-predictors-of-acute-response-to-transcranial-direct-current-stimulation-tdcs-in-major-depression
#15
Giordano D'Urso, Bernardo Dell'Osso, Rodolfo Rossi, Andre Russowsky Brunoni, Marco Bortolomasi, Roberta Ferrucci, Alberto Priori, Andrea de Bartolomeis, Alfredo Carlo Altamura
BACKGROUND: Transcranial direct current stimulation (tDCS) is a promising neuromodulation intervention for poor-responding or refractory depressed patients. However, little is known about predictors of response to this therapy. The present study aimed to analyze clinical predictors of response to tDCS in depressed patients. METHODS: Clinical data from 3 independent tDCS trials on 171 depressed patients (including unipolar and bipolar depression), were pooled and analyzed to assess predictors of response...
May 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28503139/a-pilot-study-on-the-effects-of-transcranial-direct-current-stimulation-on-brain-rhythms-and-entropy-during-self-paced-finger-movement-using-the-epoc-helmet
#16
Florian C A A Bodranghien, Margot Langlois Mahe, Serge Clément, Mario U Manto
Transcranial direct current stimulation (tDCS) of the cerebellum is emerging as a novel non-invasive tool to modulate the activity of the cerebellar circuitry. In a single blinded study, we applied anodal tDCS (atDCS) of the cerebellum to assess its effects on brain entropy and brain rhythms during self-paced sequential finger movements in a group of healthy volunteers. Although wearable electroencephalogram (EEG) systems cannot compete with traditional clinical/laboratory set-ups in terms of accuracy and channel density, they have now reached a sufficient maturity to envision daily life applications...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28502585/frontoparietal-neurostimulation-modulates-working-memory-training-benefits-and-oscillatory-synchronization
#17
Kevin T Jones, Dwight J Peterson, Kara J Blacker, Marian E Berryhill
There is considerable interest in maintaining working memory (WM) because it is essential to accomplish most cognitive tasks, and it is correlated with fluid intelligence and ecologically valid measures of daily living. Toward this end, WM training protocols aim to improve WM capacity and extend improvements to unpracticed domains, yet success is limited. One emerging approach is to couple WM training with transcranial direct current stimulation (tDCS). This pairing of WM training with tDCS in longitudinal designs promotes behavioral improvement and evidence of transfer of performance gains to untrained WM tasks...
May 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28496402/cortico-striatal-thalamic-loop-circuits-of-the-orbitofrontal-cortex-promising-therapeutic-targets-in-psychiatric-illness
#18
REVIEW
Peter Fettes, Laura Schulze, Jonathan Downar
Corticostriatal circuits through the orbitofrontal cortex (OFC) play key roles in complex human behaviors such as evaluation, affect regulation and reward-based decision-making. Importantly, the medial and lateral OFC (mOFC and lOFC) circuits have functionally and anatomically distinct connectivity profiles which differentially contribute to the various aspects of goal-directed behavior. OFC corticostriatal circuits have been consistently implicated across a wide range of psychiatric disorders, including major depressive disorder (MDD), obsessive compulsive disorder (OCD), and substance use disorders (SUDs)...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28491480/new-treatment-strategies-of-depression-based-on-mechanisms-related-to-neuroplasticity
#19
REVIEW
Yu-Jhen Huang, Hsien-Yuan Lane, Chieh-Hsin Lin
Major depressive disorder is a severe and complex mental disorder. Impaired neurotransmission and disrupted signalling pathways may influence neuroplasticity, which is involved in the brain dysfunction in depression. Traditional neurobiological theories of depression, such as monoamine hypothesis, cannot fully explain the whole picture of depressive disorders. In this review, we discussed new treatment directions of depression, including modulation of glutamatergic system and noninvasive brain stimulation. Dysfunction of glutamatergic neurotransmission plays an important role in the pathophysiology of depression...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28491018/transcranial-stimulation-of-the-orbitofrontal-cortex-affects-decisions-about-magnocellular-optimized-stimuli
#20
Anna Bognár, Gergő Csete, Margit Németh, Péter Csibri, Tamás Z Kincses, Gyula Sáry
Visual categorization plays an important role in fast and efficient information processing; still the neuronal basis of fast categorization has not been established yet. There are two main hypotheses known; both agree that primary, global impressions are based on the information acquired through the magnocellular pathway (MC). It is unclear whether this information is available through the MC that provides information (also) for the ventral pathway or through top-down mechanisms by connections between the dorsal pathway and the ventral pathway via the frontal cortex...
2017: Frontiers in Neuroscience
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