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https://www.readbyqxmd.com/read/28064113/cognitive-control-dysfunction-in-emotion-dysregulation-and-psychopathology-of-major-depression-md-evidence-from-transcranial-brain-stimulation-of-the-dorsolateral-prefrontal-cortex-dlpfc
#1
Mohammad Ali Salehinejad, Elham Ghanavai, Reza Rostami, Vahid Nejati
BACKGROUND: Previous studies showed that MD is associated with a variety of cognitive deficits and executive dysfunctions which can persist even in remitted states. However, the role of cognitive impairments in MD psychopathology and treatment is not fully understood. This article aims to discuss how executive functions central components (e.g., Working memory and attention) mediate MD psychopathology considering the role of dorsolateral prefrontal cortex (dLPFC) and present findings of a brain stimulation experiment to support this notion...
December 31, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28039551/single-session-transcranial-direct-current-stimulation-induces-enduring-enhancement-of-visual-processing-speed-in-patients-with-major-depression
#2
Nadine Gögler, Lina Willacker, Johanna Funk, Wolfgang Strube, Simon Langgartner, Natan Napiórkowski, Alkomiet Hasan, Kathrin Finke
Attentional deficits are considered key cognitive symptoms in major depressive disorder (MDD) arising from abnormal activation patterns within dorsolateral prefrontal cortex (dlPFC) alertness networks. Altering these activity patterns with transcranial direct current stimulation (tDCS) might thus ameliorate alertness-dependent cognitive deficits in MDD patients. In a double-blind, randomized, sham-controlled study, we investigated the effect of a single session of anodal tDCS (2 mA) applied to the left dlPFC on different parameters of visual attention based on Bundesen's theory of visual attention (Psychol Rev 97(4):523-547, 1990) in a group of 20 patients with MDD and a control group of 20 healthy participants...
December 30, 2016: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28029427/predicting-tdcs-treatment-outcomes-of-patients-with-major-depressive-disorder-using-automated-eeg-classification
#3
Alaa M Al-Kaysi, Ahmed Al-Ani, Colleen K Loo, Tamara Y Powell, Donel M Martin, Michael Breakspear, Tjeerd W Boonstra
BACKGROUND: Transcranial direct current stimulation (tDCS) is a promising treatment for major depressive disorder (MDD). Standard tDCS treatment involves numerous sessions running over a few weeks. However, not all participants respond to this type of treatment. This study aims to investigate the feasibility of identifying MDD patients that respond to tDCS treatment based on resting-state electroencephalography (EEG) recorded prior to treatment commencing. METHODS: We used machine learning to predict improvement in mood and cognition during tDCS treatment from baseline EEG power spectra...
October 24, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27965597/transcranial-direct-current-stimulation-effects-on-athletes-cognitive-performance-an-exploratory-proof-of-concept-trial
#4
Davimar M M Borducchi, July Silveira Gomes, Henrique Akiba, Quirino Cordeiro, José Henrique M Borducchi, Lívia Stocco Sanches Valentin, Gabrielle M Borducchi, Álvaro Machado Dias
Among the 2016 Olympic and Paralympic Games' unforgettable moments, one could not overlook performances by Phelps and Bolt, which challenge old premises about the maximum extension of individual supremacism in ultracompetitive modalities and the doping scandals. Different media channels resonated these two trends, with an unseen rise on discussions about traits and practices that may set ultrahigh performance athletes apart from the more ordinary ones. Yet, some key issues remain undebated. This paper aims to add to this debate, with a proof of concept trial, which investigates whether transcranial direct current stimulation (tDCS) may serve as an aid for professional athletes...
2016: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/27931886/neurobiological-after-effects-of-non-invasive-brain-stimulation
#5
REVIEW
G Cirillo, G Di Pino, F Capone, F Ranieri, L Florio, V Todisco, G Tedeschi, K Funke, V Di Lazzaro
BACKGROUND: In recent years, many studies have evaluated the effects of noninvasive brain stimulation (NIBS) techniques for the treatment of several neurological and psychiatric disorders. Positive results led to approval of NIBS for some of these conditions by the Food and Drug Administration in the USA. The therapeutic effects of NIBS have been related to bi-directional changes in cortical excitability with the direction of change depending on the choice of stimulation protocol. Although after-effects are mostly short lived, complex neurobiological mechanisms related to changes in synaptic excitability bear the potential to further induce therapy-relevant lasting changes...
November 17, 2016: Brain Stimulation
https://www.readbyqxmd.com/read/27925214/acute-and-chronic-effects-of-noradrenergic-enhancement-on-transcranial-direct-current-stimulation-induced-neuroplasticity-in-humans
#6
Hsiao-I Kuo, Walter Paulus, Giorgi Batsikadze, Asif Jamil, Min-Fang Kuo, Michael A Nitsche
KEY POINTS: Chronic administration of the selective noradrenaline reuptake inhibitor (NRI) reboxetine (RBX) increased and prolonged the long-term potentiation-like plasticity induced by anodal transcranial direct current stimulation (tDCS) for over 24 h. Chronic administration of RBX converted cathodal tDCS-induced long-term depression-like plasticity into facilitation for 120 min. Chronic noradrenergic activity enhancement on plasticity of the human brain might partially explain the delayed therapeutic impact of selective NRIs in depression and other neuropsychiatric diseases...
November 7, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27916405/treatment-emergent-mania-hypomania-during-antidepressant-treatment-with-transcranial-direct-current-stimulation-tdcs-a-systematic-review-and-meta-analysis
#7
André R Brunoni, Adriano H Moffa, Bernardo Sampaio-Júnior, Verònica Gálvez, Colleen K Loo
BACKGROUND: Treatment-emergent mania/hypomania (TEM) is a possible adverse effect of pharmacological and non-pharmacological antidepressant treatments. OBJECTIVE: We performed a systematic review and meta-analysis to evaluate the risk of TEM in depressed patients during randomized, sham-controlled trials (RCTs). DATA SOURCES: Medline database, from the first date available to August 12, 2016. RESULTS: From 283 references, 10 RCTs were identified...
November 14, 2016: Brain Stimulation
https://www.readbyqxmd.com/read/27901245/transcranial-direct-current-stimulation-for-treatment-resistant-obsessive-compulsive-disorder-report-on-two-cases-and-proposal-for-a-randomized-sham-controlled-trial
#8
Renata de Melo Felipe da Silva, André Russowsky Brunoni, Eurípedes Constantino Miguel, Roseli Gedanke Shavitt
CONTEXT AND OBJECTIVE: Neuromodulation techniques for treating obsessive-compulsive disorder (OCD) have expanded through greater understanding of the brain circuits involved in this disorder. Transcranial direct current stimulation (tDCS), a non-invasive technique, has been studied as an alternative for treatment-resistant OCD. We describe the design of a clinical trial using tDCS for OCD and report on the outcomes from two patients with primary OCD who were resistant to cognitive-behavioral therapy and to selective serotonin reuptake inhibitors, and who received tDCS in an open manner during the training phase for the study procedures...
September 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27891626/does-trans-spinal-and-local-dc-polarization-affect-presynaptic-inhibition-and-post-activation-depression
#9
D Kaczmarek, J Ristikankare, E Jankowska
KEY POINTS: Trans-spinal polarization was recently introduced as a means to improve deficient spinal functions. However, only a few attempts have been made to examine the mechanisms underlying DC actions. We have now examined the effects of DC on two spinal modulatory systems, presynaptic inhibition and post-activation depression, considering whether they might weaken exaggerated spinal reflexes and enhance excessively weakened ones. Direct current effects were evoked by using local intraspinal DC application (0...
November 28, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27885309/transcranial-direct-current-stimulation-use-in-the-treatment-of-neuropsychiatric-disorders-a-brief-review
#10
Sarah M Szymkowicz, Molly E McLaren, Uma Suryadevara, Adam J Woods
Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that has grown in popularity over the past two decades as an alternative treatment option for various neuropsychiatric disorders. tDCS modulates cortical excitability through the application of a weak direct current to the scalp via electrodes placed over cortical regions of interest. It has been shown to be a promising and relatively safe treatment tool with few adverse events. In this article, we will briefly review the efficacy of tDCS in depression, bipolar disorder, schizophrenia, and obsessive-compulsive disorder...
November 2016: Psychiatric Annals
https://www.readbyqxmd.com/read/27866120/evidence-based-guidelines-on-the-therapeutic-use-of-transcranial-direct-current-stimulation-tdcs
#11
REVIEW
Jean-Pascal Lefaucheur, Andrea Antal, Samar S Ayache, David H Benninger, Jérôme Brunelin, Filippo Cogiamanian, Maria Cotelli, Dirk De Ridder, Roberta Ferrucci, Berthold Langguth, Paola Marangolo, Veit Mylius, Michael A Nitsche, Frank Padberg, Ulrich Palm, Emmanuel Poulet, Alberto Priori, Simone Rossi, Martin Schecklmann, Sven Vanneste, Ulf Ziemann, Luis Garcia-Larrea, Walter Paulus
A group of European experts was commissioned by the European Chapter of the International Federation of Clinical Neurophysiology to gather knowledge about the state of the art of the therapeutic use of transcranial direct current stimulation (tDCS) from studies published up until September 2016, regarding pain, Parkinson's disease, other movement disorders, motor stroke, poststroke aphasia, multiple sclerosis, epilepsy, consciousness disorders, Alzheimer's disease, tinnitus, depression, schizophrenia, and craving/addiction...
January 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27865707/a-comprehensive-database-of-published-tdcs-clinical-trials-2005-2016
#12
REVIEW
Jean-Pascal Lefaucheur
Transcranial direct current stimulation (tDCS) is a technique of noninvasive cortical stimulation allowing significant modification of brain functions. Clinical application of this technique was reported for the first time in March 2005. This paper presents a detailed list of the 340 articles (excluding single case reports) which have assessed the clinical effect of tDCS in patients, at least when delivered to cortical targets. The reviewed conditions were: pain syndromes, Parkinson's disease, dystonia, cerebral palsy, post-stroke limb motor impairment, post-stroke neglect, post-stroke dysphagia, post-stroke aphasia, primary progressive aphasia, multiple sclerosis, epilepsy, consciousness disorders, Alzheimer's disease and other types of dementia, tinnitus, depression, auditory hallucinations and negative symptoms of schizophrenia, addiction and craving, autism, and attention disorders...
December 2016: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/27815324/transcranial-direct-current-stimulation-for-the-treatment-of-post-stroke-depression-results-from-a-randomised-sham-controlled-double-blinded-trial
#13
Leandro C L Valiengo, Alessandra C Goulart, Janaina F de Oliveira, Isabela M Benseñor, Paulo A Lotufo, Andre R Brunoni
BACKGROUND: Post-stroke depression is a disabling condition occurring in about one-third of patients with stroke. Pharmacological treatments have limited efficacy and important side effects. Recently, transcranial direct current stimulation (tDCS) has shown efficacy in treating depression. This study aimed to assess the efficacy and safety of tDCS for post-stroke depression. METHODS: 48 antidepressant-free patients with post-stroke depression were randomised into two groups (active and sham tDCS)...
November 4, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/27759809/transcranial-magnetic-stimulation-and-transcranial-direct-current-stimulation-appear-to-be-safe-neuromodulatory-techniques-useful-in-the-treatment-of-anxiety-disorders-and-other-neuropsychiatric-disorders
#14
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
https://www.readbyqxmd.com/read/27756567/study-design-and-methodology-for-a-multicentre-randomised-controlled-trial-of-transcranial-direct-current-stimulation-as-a-treatment-for-unipolar-and-bipolar-depression
#15
Angelo Alonzo, Scott Aaronson, Marom Bikson, Mustafa Husain, Sarah Lisanby, Donel Martin, Shawn M McClintock, William M McDonald, John O'Reardon, Zeinab Esmailpoor, Colleen Loo
Transcranial Direct Current Stimulation (tDCS) is a new, non-invasive neuromodulation approach for treating depression that has shown promising efficacy. The aim of this trial was to conduct the first international, multicentre randomised controlled trial of tDCS as a treatment for unipolar and bipolar depression. The study recruited 120 participants across 6 sites in the USA and Australia. Participants received active or sham tDCS (2.5mA, 20 sessions of 30min duration over 4weeks), followed by a 4-week open label active treatment phase and a 4-week taper phase...
October 15, 2016: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/27662113/anodal-transcranial-direct-current-stimulation-of-the-left-dorsolateral-prefrontal-cortex-enhances-emotion-recognition-in-depressed-patients-and-controls
#16
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
https://www.readbyqxmd.com/read/27570958/-does-prefrontal-noninvasive-brain-stimulation-alleviating-symptoms-in-depression-and-schizophrenia-impact-mood-and-emotion-processing
#17
REVIEW
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...
December 0: Santé Mentale Au Québec
https://www.readbyqxmd.com/read/27495805/effects-of-tdcs-over-the-right-dlpfc-on-attentional-disengagement-from-positive-and-negative-faces-an-eye-tracking-study
#18
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...
December 2016: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/27486154/canadian-network-for-mood-and-anxiety-treatments-canmat-2016-clinical-guidelines-for-the-management-of-adults-with-major-depressive-disorder-section-4-neurostimulation-treatments
#19
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
https://www.readbyqxmd.com/read/27341682/direct-current-stimulation-and-multi-electrode-array-recording-of-seizure-like-activity-in-mice-brain-slice-preparation
#20
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
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