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Aphasia tdcs

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https://www.readbyqxmd.com/read/28611609/transcranial-direct-current-stimulation-in-post-stroke-chronic-aphasia-the-impact-of-baseline-severity-and-task-specificity-in-a-pilot-sample
#1
Catherine Norise, Daniela Sacchetti, Roy Hamilton
Emerging evidence suggests that transcranial direct current stimulation (tDCS) can improve aspects of language production in persons with chronic non-fluent aphasia due to left hemisphere stroke. However, to date, studies exploring factors that predict response to tDCS in this or any patient population remain sparse, as are studies that investigate the specific aspects of language performance that are most responsive to stimulation. The current study explored factors that could predict recovery of language fluency and which aspects of language fluency could be expected to improve with the identified factor(s)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28572057/transcranial-direct-current-stimulation-tdcs-to-improve-naming-ability-in-post-stroke-aphasia-a-critical-review
#2
REVIEW
Mohammed F ALHarbi, Susan Armijo-Olivo, Esther S Kim
PURPOSE: Transcranial Direct Current Stimulation (tDCS) is a non-invasive neuromodulation tool that can be used to influence cortical brain activity to induce measurable behavioral changes. Although there is growing evidence that tDCS combined with behavioural language therapy could boost language recovery in patients with post-stroke aphasia, there is great variability in patient characteristics, treatment protocols, and outcome measures in these studies that poses challenges for analyzing the evidence...
May 29, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28559805/semantic-feature-training-in-combination-with-transcranial-direct-current-stimulation-tdcs-for-progressive-anomia
#3
Jinyi Hung, Ashley Bauer, Murray Grossman, Roy H Hamilton, H B Coslett, Jamie Reilly
We examined the effectiveness of a 2-week regimen of a semantic feature training in combination with transcranial direct current stimulation (tDCS) for progressive naming impairment associated with primary progressive aphasia (N = 4) or early onset Alzheimer's Disease (N = 1). Patients received a 2-week regimen (10 sessions) of anodal tDCS delivered over the left temporoparietal cortex while completing a language therapy that consisted of repeated naming and semantic feature generation. Therapy targets consisted of familiar people, household items, clothes, foods, places, hygiene implements, and activities...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28286676/cerebellar-cathodal-transcranial-direct-stimulation-and-performance-on-a-verb-generation-task-a-replication-study
#4
K Spielmann, R van der Vliet, W M E van de Sandt-Koenderman, M A Frens, G M Ribbers, R W Selles, S van Vugt, J N van der Geest, P Holland
The role of the cerebellum in cognitive processing is increasingly recognized but still poorly understood. A recent study in this field applied cerebellar Transcranial Direct Current Stimulation (c-tDCS) to the right cerebellum to investigate the role of prefrontal-cerebellar loops in language aspects of cognition. Results showed that the improvement in participants' verbal response times on a verb generation task was facilitated immediately after cathodal c-tDCS, compared to anodal or sham c-tDCS. The primary aim of the present study is to replicate these findings and additionally to investigate possible longer term effects...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/27997958/use-of-tdcs-in-aphasia-rehabilitation-a-systematic-review-of-the-behavioral-interventions-implemented-with-noninvasive-brain-stimulation-for-language-recovery
#5
Elizabeth E Galletta, Peggy Conner, Amy Vogel-Eyny, Paola Marangolo
Purpose: The purpose of this article is to review the behavioral treatments used in aphasia rehabilitation research that have been combined with transcranial direct current stimulation (tDCS). Although tDCS in aphasia treatment has shown promise, the results have not been conclusive, and their interpretation is further compounded by the heterogeneity of study characteristics. Because implementing a behavioral task during brain stimulation has been shown to be pivotal to the adjuvant effects of tDCS, we analyze the behavioral treatments that have been paired with tDCS...
December 1, 2016: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/27866120/evidence-based-guidelines-on-the-therapeutic-use-of-transcranial-direct-current-stimulation-tdcs
#6
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
#7
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/27859982/transcranial-direct-current-stimulation-effects-on-neural-processing-in-post-stroke-aphasia
#8
Robert Darkow, Andrew Martin, Anna Würtz, Agnes Flöel, Marcus Meinzer
Non-invasive transcranial direct current stimulation (tDCS) can enhance recovery after stroke. However, fundamental knowledge about how tDCS impacts neural processing in the lesioned human brain is currently lacking. In the present study, it was investigated how tDCS modulates brain function in patients with post-stroke language impairment (aphasia). In a cross-over, randomized trial, patients named pictures of common objects during functional magnetic resonance imaging (fMRI). Concurrently, excitatory (anodal-) or sham-tDCS (1 mA, 20 min, or 30 s, respectively) was administered to the left primary motor cortex, a montage with demonstrated potential to improve aphasic language...
November 11, 2016: Human Brain Mapping
https://www.readbyqxmd.com/read/27830094/adaptive-plasticity-in-the-healthy-language-network-implications-for-language-recovery-after-stroke
#9
REVIEW
Gesa Hartwigsen
Across the last three decades, the application of noninvasive brain stimulation (NIBS) has substantially increased the current knowledge of the brain's potential to undergo rapid short-term reorganization on the systems level. A large number of studies applied transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) in the healthy brain to probe the functional relevance and interaction of specific areas for different cognitive processes. NIBS is also increasingly being used to induce adaptive plasticity in motor and cognitive networks and shape cognitive functions...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27677006/feasibly-and-tolerance-of-a-rehabilitation-program-combined-with-iterative-tdcs-stimulations-for-hemiplegic-patients-after-stoke-a-case-report-study
#10
Étienne Ojardias, Oscar Azeo, Diana Rimaud, Pascal Giraux
OBJECTIVE: Transcortical direct current stimulation (tDCS) is an emerging technique in the rehabilitation of hemiplegic patients after stroke, and has been mainly evaluated for the upper limb. The feasibility and tolerance of the use of repeated stimulations on the lower limb motor cortex require a clinical evaluation. OBSERVATIONS: A 72-year-old patient, who suffered from a first ischemic stroke in the left middle cerebral artery area, on July 2015, was admitted, 6 months post-stroke, to the PRM outpatient clinic of the university hospital of Saint-Étienne, for a motor training program combined with iterative tDCS stimulations...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27553723/direct-current-stimulation-over-the-anterior-temporal-areas-boosts-semantic-processing-in-primary-progressive-aphasia
#11
RANDOMIZED CONTROLLED TRIAL
Marc Teichmann, Constance Lesoil, Juliette Godard, Marine Vernet, Anne Bertrand, Richard Levy, Bruno Dubois, Laurie Lemoine, Dennis Q Truong, Marom Bikson, Aurélie Kas, Antoni Valero-Cabré
OBJECTIVE: Noninvasive brain stimulation in primary progressive aphasia (PPA) is a promising approach. Yet, applied to single cases or insufficiently controlled small-cohort studies, it has not clarified its therapeutic value. We here address the effectiveness of transcranial direct current stimulation (tDCS) on the semantic PPA variant (sv-PPA), applying a rigorous study design to a large, homogeneous sv-PPA cohort. METHODS: Using a double-blind, sham-controlled counterbalanced cross-over design, we applied three tDCS conditions targeting the temporal poles of 12 sv-PPA patients...
November 2016: Annals of Neurology
https://www.readbyqxmd.com/read/27522537/transcranial-direct-current-stimulation-for-the-treatment-of-primary-progressive-aphasia-an-open-label-pilot-study
#12
Felix Gervits, Sharon Ash, H Branch Coslett, Katya Rascovsky, Murray Grossman, Roy Hamilton
Primary progressive aphasia (PPA) is a neurodegenerative condition characterized by gradual deterioration of language function. We investigated whether two weeks of daily transcranial direct current stimulation (tDCS) treatment would improve language abilities in six people with a non-fluent form of PPA. tDCS was applied in an unblinded trial at an intensity of 1.5mA for 20min/day over 10days. At the time of stimulation, patients were engaged in narrating one of several children's wordless picture stories. A battery of neuropsychological assessments was administered four times: at baseline, immediately following the 2-week stimulation period, and then 6-weeks and 12-weeks following the end of stimulation...
November 2016: Brain and Language
https://www.readbyqxmd.com/read/27484456/transcranial-direct-current-stimulation-in-post-stroke-sub-acute-aphasia-study-protocol-for-a-randomized-controlled-trial
#13
Kerstin Spielmann, W Mieke E van de Sandt-Koenderman, Majanka H Heijenbrok-Kal, Gerard M Ribbers
BACKGROUND: Transcranial direct current stimulation (tDCS) is a promising new technique to optimize the effect of regular Speech and Language Therapy (SLT) in the context of aphasia rehabilitation. The present study focuses on the effect of tDCS provided during SLT in the sub-acute stage after stroke. The primary aim is to evaluate the potential effect of tDCS on language functioning, specifically on word-finding, as well as generalization effects to verbal communication. The secondary aim is to evaluate its effect on social participation and quality of life, and its cost-effectiveness...
2016: Trials
https://www.readbyqxmd.com/read/27472845/modulating-transcallosal-and-intra-hemispheric-brain-connectivity-with-tdcs-implications-for-interventions-in-aphasia
#14
Xin Zheng, Weiying Dai, David C Alsop, Gottfried Schlaug
BACKGROUND/OBJECTIVE: Transcranial direct current stimulation (tDCS) can enhance or diminish cortical excitability levels depending on the polarity of the stimulation. One application of non-invasive brain-stimulation has been to modulate a possible inter-hemispheric disinhibition after a stroke. This disinhibition model has been developed mainly for the upper extremity motor system, but it is not known whether the language/speech-motor system shows a similar inter-hemispheric interaction...
July 25, 2016: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/27314871/transcranial-direct-current-stimulation-in-post-stroke-aphasia-and-primary-progressive-aphasia-current-knowledge-and-future-clinical-applications
#15
REVIEW
Rajani Sebastian, Kyrana Tsapkini, Donna C Tippett
BACKGROUND: The application of transcranial direct current stimulation (tDCS) in chronic post stroke aphasia is documented in a substantial literature, and there is some new evidence that tDCS can augment favorable language outcomes in primary progressive aphasia. Anodal tDCS is most often applied to the left hemisphere language areas to increase cortical excitability (increase the threshold of activation) and cathodal tDCS is most often applied to the right hemisphere homotopic areas to inhibit over activation in contralesional right homologues of language areas...
June 13, 2016: NeuroRehabilitation
https://www.readbyqxmd.com/read/27232953/cerebellar-tdcs-as-a-novel-treatment-for-aphasia-evidence-from-behavioral-and-resting-state-functional-connectivity-data-in-healthy-adults
#16
Peter E Turkeltaub, Mary K Swears, Anila M D'Mello, Catherine J Stoodley
BACKGROUND: Aphasia is an acquired deficit in the ability to communicate through language. Noninvasive neuromodulation offers the potential to boost neural function and recovery, yet the optimal site of neuromodulation for aphasia has yet to be established. The right posterolateral cerebellum is involved in multiple language functions, interconnects with left-hemisphere language cortices, and is crucial for optimization of function and skill acquisition, suggesting that cerebellar neuromodulation could enhance aphasia rehabilitation...
May 24, 2016: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/27194245/grey-matter-density-predicts-the-improvement-of-naming-abilities-after-tdcs-intervention-in-agrammatic-variant-of-primary-progressive-aphasia
#17
Maria Cotelli, Rosa Manenti, Donata Paternicò, Maura Cosseddu, Michela Brambilla, Michela Petesi, Enrico Premi, Roberto Gasparotti, Orazio Zanetti, Alessandro Padovani, Barbara Borroni
Agrammatic variant primary progressive aphasia is a neurodegenerative disorder specifically characterized by language deficits. A recent study has demonstrated a beneficial effect of transcranial direct current stimulation (tDCS) in combination with language training on naming accuracy in these patients. The aim of the study was to evaluate whether the improvement of naming accuracy after tDCS during language training was related to regional grey matter (GM) density. Eighteen avPPA patients underwent a brain magnetic resonance imaging before receiving a treatment that consisted of tDCS over the left dorsolateral prefrontal cortex during individualized language training (10 daily therapy sessions, 5 days per week from Monday to Friday)...
September 2016: Brain Topography
https://www.readbyqxmd.com/read/27167887/-non-invasive-brain-stimulation-in-neurology-transcranial-direct-current-stimulation-to-enhance-cognitive-functioning
#18
REVIEW
D Antonenko, A Flöel
Transcranial direct current stimulation (tDCS) has been successfully used in neuroscientific research to modulate cognitive functions. Recent studies suggested that improvement of behavioral performance is associated with tDCS-induced modulation of neuronal activity and connectivity. Thus, tDCS may also represent a promising tool for reconstitution of cognitive functions in the context of memory decline related to Alzheimer's disease or aphasia following stroke; however, evidence from randomized sham-controlled clinical trials is still scarce...
August 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27163249/fields-or-flows-a-comparative-metaanalysis-of-transcranial-magnetic-and-direct-current-stimulation-to-treat-post-stroke-aphasia
#19
Priyanka P Shah-Basak, Rachel Wurzman, Juliann B Purcell, Felix Gervits, Roy Hamilton
PURPOSE: Aphasia-acquired loss of the ability to understand or express language-is a common and debilitating neurological consequence of stroke. Evidence suggests that transcranial magnetic (TMS) or direct current stimulation (tDCS) can significantly improve language outcomes in patients with aphasia (PWA). However, the relative efficacy between TMS and tDCS has not yet been explored. Mechanistic and methodological differences, patient inclusion/exclusion criteria and experimental designs may influence observed treatment benefits...
May 2, 2016: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/27147949/value-and-efficacy-of-transcranial-direct-current-stimulation-in-the-cognitive-rehabilitation-a-critical-review-since-2000
#20
REVIEW
Davide Cappon, Marjan Jahanshahi, Patrizia Bisiacchi
Non-invasive brain stimulation techniques, including transcranial direct current stimulation (t-DCS) have been used in the rehabilitation of cognitive function in a spectrum of neurological disorders. The present review outlines methodological communalities and differences of t-DCS procedures in neurocognitive rehabilitation. We consider the efficacy of tDCS for the management of specific cognitive deficits in four main neurological disorders by providing a critical analysis of recent studies that have used t-DCS to improve cognition in patients with Parkinson's Disease, Alzheimer's Disease, Hemi-spatial Neglect, and Aphasia...
2016: Frontiers in Neuroscience
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