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TDCS COGNITION

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https://www.readbyqxmd.com/read/29044248/task-demands-tdcs-intensity-and-the-comt-val-158-met-polymorphism-impact-tdcs-linked-working-memory-training-gains
#1
Jaclyn A Stephens, Kevin T Jones, Marian E Berryhill
Working memory (WM) training paired with transcranial direct current stimulation (tDCS) can improve executive function in older adults. The unclear mechanism of tDCS likely depends on tDCS intensity, and task relevant genetic factors (e.g., for WM: COMT val(158)met, DAT, BDNF val(66)met). Higher tDCS intensity does not always lead to greater cognitive gains, and genetic polymorphisms may modulate tDCS-linked WM improvements. To evaluate these factors, 137 healthy older adults provided DNA samples and received Visual and Spatial WM training paired with tDCS (sham, 1, 1...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29043928/using-transcranial-direct-current-stimulation-to-treat-symptoms-in-mild-cognitive-impairment-and-alzheimer-s-disease
#2
Celina S Liu, Allison Rau, Damien Gallagher, Tarek K Rajji, Krista L Lanctôt, Nathan Herrmann
Transcranial direct current stimulation (tDCS) has recently been investigated as a potential nonpharmacological treatment for individuals with mild cognitive impairment (MCI) and Alzheimer's disease (AD). A comprehensive literature search was performed on tDCS studies published until March 2017 using MEDLINE, Embase and PsychINFO databases. 12 articles with a total of 202 MCI or AD participants were included. Although ten of the 12 studies demonstrated positive findings with tDCS, two studies reported no effect on cognition...
October 18, 2017: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/29033856/possible-facilitative-effects-of-repeated-anodal-transcranial-direct-current-stimulation-on-functional-outcome-1-month-later-in-schizophrenia-an-open-trial
#3
Zui Narita, Takuma Inagawa, Kazuki Sueyoshi, Crystal Lin, Tomiki Sumiyoshi
Recent research on neuromodulation techniques, such as transcranial direct current stimulation (tDCS), for the treatment of schizophrenia has mainly focused on psychotic symptoms. We aimed to determine whether repetitive tDCS is efficacious in improving determinants of outcome, such as cognitive function, daily living skills, and depressive mood in patients with schizophrenia. Twenty-eight patients underwent tDCS (2 mA × 20 min) two times per day for 5 consecutive days. The anodal electrode was placed over the left dorsolateral prefrontal cortex while the cathodal electrode was placed over the right supraorbital region...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29033331/transcranial-direct-current-stimulation-facilitates-associative-learning-and-alters-functional-connectivity-in-the-primate-brain
#4
Matthew R Krause, Theodoros P Zanos, Bennett A Csorba, Praveen K Pilly, Jaehoon Choe, Matthew E Phillips, Abhishek Datta, Christopher C Pack
There has been growing interest in transcranial direct current stimulation (tDCS), a non-invasive technique purported to modulate neural activity via weak, externally applied electric fields. Although some promising preliminary data have been reported for applications ranging from stroke rehabilitation to cognitive enhancement, little is known about how tDCS affects the human brain, and some studies have concluded that it may have no effect at all. Here, we describe a macaque model of tDCS that allows us to simultaneously examine the effects of tDCS on brain activity and behavior...
October 11, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29031604/sex-mediates-the-effects-of-high-definition-transcranial-direct-current-stimulation-on-mind-reading
#5
A K Martin, J Huang, A Hunold, M Meinzer
Sex differences in social cognitive ability are well established, including measures of Theory of Mind (ToM). The aim of this study was to investigate if sex mediates the effects of high definition transcranial direct current stimulation (HD-tDCS) administered to a key hub of the social brain (i.e., the dorsomedial prefrontal cortex, dmPFC) on the Reading the Mind in the Eyes Test (RMET). 40 healthy young adults (18-35 years) were randomly allocated to receive either anodal or cathodal HD-tDCS in sham HD-tDCS controlled, double blind designs...
October 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/29021765/enhancing-neuroplasticity-to-augment-cognitive-remediation-in-schizophrenia
#6
REVIEW
Carol Jahshan, Yuri Rassovsky, Michael F Green
There is a burgeoning need for innovative treatment strategies to improve the cognitive deficits in schizophrenia. Cognitive remediation (CR) is effective at the group level, but the variability in treatment response is large. Given that CR may depend on intact neuroplasticity to produce cognitive gains, it is reasonable to combine it with strategies that harness patients' neuroplastic potential. In this review, we discuss two non-pharmacological approaches that can enhance neuroplasticity and possibly augment the effects of CR in schizophrenia: physical exercise and transcranial direct current stimulation (tDCS)...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29021526/anodal-tdcs-applied-during-multitasking-training-leads-to-transferable-performance-gains
#7
Hannah L Filmer, Maxwell Lyons, Jason B Mattingley, Paul E Dux
Cognitive training can lead to performance improvements that are specific to the tasks trained. Recent research has suggested that transcranial direct current stimulation (tDCS) applied during training of a simple response-selection paradigm can broaden performance benefits to an untrained task. Here we assessed the impact of combined tDCS and training on multitasking, stimulus-response mapping specificity, response-inhibition, and spatial attention performance in a cohort of healthy adults. Participants trained over four days with concurrent tDCS - anodal, cathodal, or sham - applied to the left prefrontal cortex...
October 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29020472/effect-of-transcranial-direct-current-stimulation-combined-with-cognitive-training-on-cognitive-functioning-in-older-adults-with-hiv-a-pilot-study
#8
Pariya L Fazeli, Adam J Woods, Caitlin N Pope, David E Vance, Karlene K Ball
The objective of this study was to examine combination speed of processing (SOP) cognitive remediation therapy (CRT) and transcranial direct stimulation (tDCS) as neurorehabilitation in older HIV+ adults. Thirty-three HIV+ adults aged 50+ completed neurocognitive testing and were randomized to either active (n = 17) or sham (n = 16) tDCS. Both conditions received 10 1-hour sessions of SOP CRT, with either active or sham tDCS for the first 20 minutes. Participants then completed a posttest assessment...
October 11, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/29017911/combination-of-a-short-cognitive-training-and-tdcs-to-enhance-visuospatial-skills-a-comparison-between-online-and-offline-neuromodulation
#9
Viola Oldrati, Barbara Colombo, Alessandro Antonietti
Visuospatial skills can be enhanced thanks to specific intervention programs, but the additional benefits of neuromodulation on these skills have not been fully investigated yet, although transcranial direct current stimulation (tDCS) has demonstrated to boost the effects of cognitive trainings. When combining cognitive intervention with neuromodulation, the time-window of tDCS application in relation to task execution has to be taken into account since it has been shown to affect stimulation outcomes. The aim of the present experiment was to investigate the influence of tDCS in enhancing the effects of a training for visuospatial skills...
October 7, 2017: Brain Research
https://www.readbyqxmd.com/read/28984619/the-therapeutic-use-of-non-invasive-brain-stimulation-in-multiple-sclerosis-a-review
#10
Rosa Iodice, Fiore Manganelli, Raffaele Dubbioso
BACKGROUND: Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system and a leading cause of disability in young adults. Many disabling symptoms in MS, such as spasticity, pain, depression and cognitive deficits are not fully controlled by drug treatment. Non-invasive brain stimulation (NIBS) techniques can be used as tools for modulating altered cortical excitability and plasticity MS patients, providing an improvement in disabling symptoms affecting such patients...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28971466/the-effects-of-anodal-transcranial-direct-current-stimulation-on-working-memory
#11
Marianna Katsoulaki, Alexandros Kastrinis, Maria Tsekoura
The aim of this paper was to review the effects of anodal transcranial direct current stimulation (tdcs) on working memory in healthy population. Ten studies were identified involving 319 subjects. Working memory performance was measured using cognitive tasks such as the n-back task, digit span forward or digit span backwards test, Sternberg WM task, the Pacet Auditory Serial Addition Task (PASAT) and the Pacet Auditory Serial Subtraction Task (PASST), verbal and visuospatial tasks and the Operation Span (OSpan) task...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28961738/cognitive-rehabilitation-in-parkinson-s-disease-is-it-feasible
#12
Roberta Biundo, Luca Weis, Eleonora Fiorenzato, Antonini Angelo
Parkinson's disease (PD) is a common neurodegenerative disorder, characterized by motor and non-motor symptoms. Dementia is one of the most relevant non-motor symptoms considering its functional affect on PD patients' activities of daily living and family members' wellbeing. Cognitive abnormalities in PD are heterogeneous and reliable biomarkers to detect patients at risk for dementia early on remain to be identified. Pharmacological treatments specifically for PD dementia and mild cognitive impairment are lacking, and alternative approaches have recently been implemented, including cognitive rehabilitation...
September 18, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28960573/autism-relevant-traits-interact-with-temporoparietal-junction-stimulation-effects-on-social-cognition-a-high-definition-transcranial-direct-current-stimulation-and-electroencephalography-study
#13
Peter H Donaldson, Melissa Kirkovski, Nicole J Rinehart, Peter G Enticott
The temporoparietal junction (TPJ) is implicated in mental and emotional state attribution, processes associated with autism-relevant traits. Transcranial direct current stimulation (tDCS) to the TPJ can influence social-cognitive performance. However, associations with electrophysiology and autism-relevant traits remain relatively unexamined. This study had two aims: first, exploring links between Autism-Spectrum Quotient (AQ) scores and social-cognitive performance; second, examining interactions between AQ scores and high-definition-tDCS (HD-tDCS) applied to the right TPJ in terms of mental/emotional state attribution and neurophysiological outcomes...
September 27, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28953851/is-there-potential-for-repetitive-transcranial-magnetic-stimulation-rtms-as-a-treatment-of-ocd
#14
Rashid Zaman, Trevor W Robbins
Obsessive-Compulsive Disorder (OCD) is a common and highly debilitating psychiatric disorder. Amongst OCD sufferers are a significant number (40-60%) of so-called non-responders who do not fully respond to commonly available treatments, which include medications (Selective Serotonin Reuptake Inhibitors-SSRIs) and cognitive behavior therapy (CBT). Modern 'neuromodulatory' techniques such as Deep Brain Stimulation (DBS), repetitive Transcranial Magnetic Stimulation (rTMS) and transcranial Direct Current Stimulation (tDCS) potentially offer alternative forms of treatment for OCD patients who either do not respond to, or are unable or unwilling to take SSRIs and undergo CBT...
September 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/28946572/anodal-transcranial-direct-current-stimulation-over-the-right-hemisphere-improves-auditory-comprehension-in-a-case-of-dementia
#15
Vanessa Costa
BACKGROUND: Noninvasive transcranial stimulation methods have been increasingly employed in order to improve cognitive performance in neurological patients. In previous studies with both stroke patients and healthy subjects, noninvasive stimulation of temporal-parietal regions and their homologue produced an improvement in linguistic tasks. OBJECTIVE: The aim of the current study was to evaluate if anodal transcranial direct current stimulation (tDCS) over Brodmann areas 39/40 (angular and supramarginal gyri) could promote the recovery of linguistic functions, in particular comprehension and naming, in a single patient affected by dementia...
September 16, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28938852/transcranial-direct-current-stimulation-improves-executive-dysfunctions-in-adhd-implications-for-inhibitory-control-interference-control-working-memory-and-cognitive-flexibility
#16
Vahid Nejati, Mohammad Ali Salehinejad, Michael A Nitsche, Asal Najian, Amir-Homayoun Javadi
OBJECTIVE: This study examined effects of transcranial direct current stimulation (tDCS) over the dorsolateral prefrontal cortex (DLPFC) and orbitofrontal cortex (OFC) on major executive functions (EFs), including response inhibition, executive control, working memory (WM), and cognitive flexibility/task switching in ADHD. METHOD: ADHD children received (a) left anodal/right cathodal DLPFC tDCS and (b) sham stimulation in Experiment 1 and (a) left anodal DLPFC/right cathodal OFC tDCS, (b) left cathodal DLPFC/right anodal OFC tDCS, and (c) sham stimulation in Experiment 2...
September 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28937310/remotely-supervised-transcranial-direct-current-stimulation-for-the-treatment-of-fatigue-in-multiple-sclerosis-results-from-a-randomized-sham-controlled-trial
#17
Leigh E Charvet, Bryan Dobbs, Michael T Shaw, Marom Bikson, Abhishek Datta, Lauren B Krupp
BACKGROUND: Fatigue is a common and debilitating feature of multiple sclerosis (MS) that remains without reliably effective treatment. Transcranial direct current stimulation (tDCS) is a promising option for fatigue reduction. We developed a telerehabilitation protocol that delivers tDCS to participants at home using specially designed equipment and real-time supervision (remotely supervised transcranial direct current stimulation (RS-tDCS)). OBJECTIVE: To evaluate whether tDCS can reduce fatigue in individuals with MS...
September 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28934620/clinical-utility-and-tolerability-of-transcranial-direct-current-stimulation-in-mild-cognitive-impairment
#18
Venkatachalam Murugaraja, V Shivakumar, Palanimuthu T Sivakumar, Preeti Sinha, Ganesan Venkatasubramanian
BACKGROUND: Neuromodulatory interventions like transcranial direct current stimulation (tDCS) is emerging as a potential therapeutic strategy to promote cognitive function in healthy and pathological aging. There is need for more studies evaluating the utility and tolerability of tDCS in Mild cognitive impairment (MCI). Since MCI is considered as the prodromal stage of dementia, it has emerged as the most important target for intervention in dementia. OBJECTIVE AND METHOD: This study investigated the feasibility, tolerability and clinical utility of tDCS in patients with MCI...
September 8, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/28917591/increased-left-prefrontal-brain-perfusion-after-mri-compatible-tdcs-attenuates-momentary-ruminative-self-referential-thoughts
#19
Chris Baeken, Jonathan Remue, Marie-Anne Vanderhasselt, Andre R Brunoni, Sara De Witte, Romain Duprat, Ernst H W Koster, Rudi De Raedt, Guo-Rong Wu
BACKGROUND: Transcranial direct current stimulation (tDCS) is a non-invasive electrical stimulation technique, assumed to influence cognition and emotional processing. OBJECTIVE: However, it is unclear how tDCS influences spontaneous cognitive processes such as momentary self-referential thoughts on the neuronal level. METHODS: Forty healthy female volunteers participated in a single session sham-controlled crossover tDCS study while being in the MRI scanner...
September 6, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28913915/home-use-remotely-supervised-and-remotely-controlled-transcranial-direct-current-stimulation-a-systematic-review-of-the-available-evidence
#20
REVIEW
Ulrich Palm, Ulrike Kumpf, Nora Behler, Linda Wulf, Beatrice Kirsch, Jana Wörsching, Daniel Keeser, Alkomiet Hasan, Frank Padberg
OBJECTIVES: Transcranial direct current stimulation (tDCS) is gaining growing importance in the treatment of neurological and psychiatric disorders and is currently investigated for home-based and remotely supervised applications. METHODS: Here, we systematically review the available evidence from a database search (PubMed, ICTRP, clinicaltrials.gov) from January 2000 to May 2017. RESULTS: We detected 22 original research papers, trial protocols or trial registrations dealing with tDCS as an add-on intervention to cognitive or physiotherapeutic intervention...
September 15, 2017: Neuromodulation: Journal of the International Neuromodulation Society
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