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Tdcs depression

Aline Iannone, Antonio Pedro de Mello Cruz, Joaquim Pereira Brasil-Neto, Raphael Boechat-Barros
Transcranial magnetic stimulation (TMS) has recently been investigated as a possible adjuvant treatment for many neuropsychiatric disorders, and has already been approved for the treatment of drug-resistant depression in the United States and in Brazil, among other countries. Although its use in other neuropsychiatric disorders is still largely experimental, many physicians have been using it as an off-label add-on therapy for various disorders. More recently, another technique, transcranial direct current stimulation (tDCS), has also become available as a much cheaper and portable alternative to TMS, although its mechanisms of action are different from those of TMS...
October 2016: Arquivos de Neuro-psiquiatria
Sean Brennan, Declan M McLoughlin, Redmond O'Connell, John Bogue, Stephanie O'Connor, Caroline McHugh, Mark Glennon
INTRODUCTION: Transcranial direct current stimulation (tDCS) can enhance a range of neuropsychological functions but its efficacy in addressing clinically significant emotion recognition deficits associated with depression is largely untested. METHOD: A randomized crossover placebo controlled study was used to investigate the effects of tDCS over the left dorsolateral prefrontal cortex (L-DLPFC) on a range of neuropsychological variables associated with depression as well as neural activity in the associated brain region...
September 23, 2016: Journal of Clinical and Experimental Neuropsychology
Marion Psomiades, Clara Fonteneau, Marie-Françoise Suaud-Chagny, Frédéric Haesebaert, Jérôme Brunelin
Repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) are noninvasive brain stimulation techniques currently used as therapeutic tools in various psychiatric conditions. Applied over the dorsolateral prefrontal cortex (DLPFC), they showed their efficacy in reducing drug-resistant symptoms in patients with major depression and in patients with schizophrenia with predominantly negative symptoms. The DLPFC is a brain structure involved in the expression of these symptoms as well as in other dysfunctional functions observed in theses conditions such as emotional processes...
2016: Santé Mentale Au Québec
Alvaro Sanchez, Marie-Anne Vanderhasselt, Chris Baeken, Rudi De Raedt
The aim of this study was to increase insight in the neural substrates of attention processes involved in emotion regulation. The effects of right dorsolateral prefrontal cortex (i.e., DLPFC) stimulation on attentional processing of emotional information were evaluated. A novel attention task allowing a straightforward measurement of attentional engagement toward, and attentional disengagement away from emotional faces was used. A sample of healthy participants received 20 minutes of active and sham anodal transcranial direct current stimulation (i...
August 5, 2016: Cognitive, Affective & Behavioral Neuroscience
Roumen V Milev, Peter Giacobbe, Sidney H Kennedy, Daniel M Blumberger, Zafiris J Daskalakis, Jonathan Downar, Mandana Modirrousta, Simon Patry, Fidel Vila-Rodriguez, Raymond W Lam, Glenda M MacQueen, Sagar V Parikh, Arun V Ravindran
BACKGROUND: The Canadian Network for Mood and Anxiety Treatments (CANMAT) conducted a revision of the 2009 guidelines by updating the evidence and recommendations. The scope of the 2016 guidelines remains the management of major depressive disorder (MDD) in adults, with a target audience of psychiatrists and other mental health professionals. METHODS: Using the question-answer format, we conducted a systematic literature search focusing on systematic reviews and meta-analyses...
September 2016: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
Hsiang-Chin Lu, Wei-Jen Chang, Wei-Pang Chang, Bai-Chuang Shyu
Cathodal transcranial direct-current stimulation (tDCS) induces suppressive effects on drug-resistant seizures. To perform effective actions, the stimulation parameters (e.g., orientation, field strength, and stimulation duration) need to be examined in mice brain slice preparations. Testing and arranging the orientation of the electrode relative to the position of the mice brain slice are feasible. The present method preserves the thalamocingulate pathway to evaluate the effect of DCS on anterior cingulate cortex seizure-like activities...
2016: Journal of Visualized Experiments: JoVE
Yan Sun, Jonathan O Lipton, Lara M Boyle, Joseph R Madsen, Marti C Goldenberg, Alvaro Pascual-Leone, Mustafa Sahin, Alexander Rotenberg
OBJECTIVE: To obtain insights into mechanisms mediating changes in cortical excitability induced by cathodal transcranial direct current stimulation (tDCS). METHODS: Neocortical slices were exposed to direct current stimulation (DCS) delivered through Ag/AgCl electrodes over a range of current orientations, magnitudes, and durations. DCS-induced cortical plasticity and its receptor dependency were measured as the change in layer II/III field excitatory postsynaptic potentials by a multielectrode array, both with and without neurotransmitter receptor blockers or allosteric modulators...
August 2016: Annals of Neurology
André Russowsky Brunoni, Gabriel Tortella, Isabela Martins Benseñor, Paulo Andrade Lotufo, André Ferrer Carvalho, Felipe Fregni
BACKGROUND: Cognitive dysfunction treatment remains an unmet clinical need in major depressive disorder (MDD). Transcranial direct current stimulation (tDCS) may improve cognitive symptoms in MDD. Our aim was to investigate the cognitive effects of tDCS in the Sertraline vs. Electric Current Therapy for Treating Depression Clinical Study (SELECT-TDCS). We also explored whether tDCS could have mood-independent cognitive effects. METHODS: One hundred twenty MDD patients aged from 18 to 65 years received 12 sessions of active/sham tDCS (2mA for 30min) and real/placebo 50mg/d sertraline over 6 weeks in a factorial trial...
September 15, 2016: Journal of Affective Disorders
Wen-Hsuan Hou, Tzu-Ya Wang, Jiunn-Horng Kang
OBJECTIVES: The effects of non-invasive brain stimulation (NBS), including repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (TDCS), in treating FM remain inconclusive. The aim of this study was to investigate present evidence of using NBS as an add-on treatment in treating FM. METHODS: We conducted a database search of the Medline, Embase, PsycINFO and Cochrane Library electronic databases, from inception to July 2015, to analyse randomized controlled trials of NBS in treating FM...
August 2016: Rheumatology
Ulrich Palm, Daniel Keeser, Alkomiet Hasan, Michael J Kupka, Janusch Blautzik, Nina Sarubin, Filipa Kaymakanova, Ina Unger, Peter Falkai, Thomas Meindl, Birgit Ertl-Wagner, Frank Padberg
Negative symptoms are highly relevant in the long-term course of schizophrenia and are an important target domain for the development of novel interventions. Recently, transcranial direct current stimulation (tDCS) of the prefrontal cortex has been investigated as a treatment option in schizophrenia. In this proof-of-concept study, 20 schizophrenia patients with predominantly negative symptoms were randomized to either 10 sessions of add-on active (2 mA, 20min) or sham tDCS (anode: left DLPFC/F3; cathode: right supraorbital/F4)...
September 2016: Schizophrenia Bulletin
André R Brunoni, Adriano H Moffa, Felipe Fregni, Ulrich Palm, Frank Padberg, Daniel M Blumberger, Zafiris J Daskalakis, Djamila Bennabi, Emmanuel Haffen, Angelo Alonzo, Colleen K Loo
BACKGROUND: Transcranial direct current stimulation (tDCS) is a non-pharmacological intervention for depression. It has mixed results, possibly caused by study heterogeneity. AIMS: To assess tDCS efficacy and to explore individual response predictors. METHOD: Systematic review and individual patient data meta-analysis. RESULTS: Data were gathered from six randomised sham-controlled trials, enrolling 289 patients. Active tDCS was significantly superior to sham for response (34% v...
June 2016: British Journal of Psychiatry: the Journal of Mental Science
Simone Rossi, Emiliano Santarnecchi, Gaetano Valenza, Monica Ulivelli
Neuromodulation refers to invasive, minimally invasive or non-invasive techniques to stimulate discrete cortical or subcortical brain regions with therapeutic purposes in otherwise intractable patients: for example, thousands of advanced Parkinsonian patients, as well as patients with tremor or dystonia, benefited by deep brain stimulation (DBS) procedures (neural targets: basal ganglia nuclei). A new era for DBS is currently opening for patients with drug-resistant depression, obsessive-compulsive disorders, severe epilepsy, migraine and chronic pain (neural targets: basal ganglia and other subcortical nuclei or associative fibres)...
May 13, 2016: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
Elzbieta Jankowska, Dominik Kaczmarek, Francesco Bolzoni, Ingela Hammar
The effects of trans-spinal direct current (DC) stimulation (tsDCS) on specific neuronal populations are difficult to elucidate, as it affects a variety of neuronal networks. However, facilitatory and depressive effects on neurons processing information from the skin and from muscles can be evaluated separately when weak (0.2-0.3 μA) DC is applied within restricted areas of the rat spinal cord. The effects of such local DC application were recently demonstrated to persist for at least 1 h, and to include changes in the excitability of afferent fibres and their synaptic actions...
May 2016: European Journal of Neuroscience
Julia Tschirdewahn, Philippe Vignaud, Ariane Pfeiffer, Jana Nolden, Frank Padberg, Ulrich Palm
No abstract text is available yet for this article.
November 19, 2015: MMW Fortschritte der Medizin
Adelaide Austin, Gabriela M Jiga-Boy, Sara Rea, Simon A Newstead, Sian Roderick, Nick J Davis, R Marc Clement, Frédéric Boy
Negative emotional responses to the daily life stresses have cumulative effects which, in turn, impose wide-ranging negative constraints on emotional well being and neurocognitive performance (Kalueff and Nutt, 2007; Nadler et al., 2010; Charles et al., 2013). Crucial cognitive functions such as memory and problem solving, as well more short term emotional responses (e.g., anticipation of- and response to- monetary rewards or losses) are influenced by mood. The negative impact of these behavioral responses is felt at the individual level, but it also imposes major economic burden on modern healthcare systems...
2016: Frontiers in Psychology
Nesrin Helvaci Yilmaz, Burcu Polat, Lutfu Hanoglu
INTRODUCTION: Pharmacotherapy and thalamic stimulation are the most accepted methods used for the treatment of essential tremor (ET). Transcranial direct current stimulation (tDCS) is a noninvasive method for brain stimulation, especially to treat pain, cerebrovascular disease, and depression. tDCS applied to the cerebellar region has been shown to exhibit a modulating effect on the excitability of Purkinje cells and to cause primary motor cortex inhibition through the regulation of synaptic dentato-thalamo-cortical excitability...
March 2016: Neurologist
Tim Kunze, Alexander Hunold, Jens Haueisen, Viktor Jirsa, Andreas Spiegler
Transcranial direct current stimulation (tDCS) is a noninvasive technique for affecting brain dynamics with promising application in the clinical therapy of neurological and psychiatric disorders such as Parkinson's disease, Alzheimer's disease, depression, and schizophrenia. Resting state dynamics increasingly play a role in the assessment of connectivity-based pathologies such as Alzheimer's and schizophrenia. We systematically applied tDCS in a large-scale network model of 74 cerebral areas, investigating the spatiotemporal changes in dynamic states as a function of structural connectivity changes...
October 15, 2016: NeuroImage
Katharine Dunlop, Colleen A Hanlon, Jonathan Downar
Major depressive disorder (MDD) and substance use disorders (SUDs) are prevalent, disabling, and challenging illnesses for which new treatment options are needed, particularly in comorbid cases. Neuroimaging studies of the functional architecture of the brain suggest common neural substrates underlying MDD and SUDs. Intrinsic brain activity is organized into a set of functional networks, of which two are particularly relevant to psychiatry. The salience network (SN) is crucial for cognitive control and response inhibition, and deficits in SN function are implicated across a wide variety of psychiatric disorders, including MDD and SUDs...
February 5, 2016: Annals of the New York Academy of Sciences
Ulrich Palm, Alkomiet Hasan, Wolfgang Strube, Frank Padberg
Transcranial direct current stimulation (tDCS) has been investigated for the treatment of major depressive disorders in recent years. Here, we review the implications of current research for the clinical use of tDCS in the treatment of major depressive disorder. Meta-analyses, randomized, placebo-controlled clinical trials, open-label trials, case reports and review articles were identified through a systematic search of the literature database of the National Institutes of Health (USA). Available articles were evaluated with regard to their clinical relevance...
February 3, 2016: European Archives of Psychiatry and Clinical Neuroscience
Mario Bogdanov, Lars Schwabe
UNLABELLED: Stress is known to impair working memory performance. This disruptive effect of stress on working memory has been linked to a decrease in the activity of the dorsolateral prefrontal cortex (dlPFC). In the present experiment, we tested whether transcranial direct current stimulation (tDCS) of the dlPFC can prevent stress-induced working memory impairments. We tested 120 healthy participants in a 2 d, sham-controlled, double-blind between-subjects design. Participants completed a test of their individual baseline working memory capacity on day 1...
January 27, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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