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https://www.readbyqxmd.com/read/28632467/effects-of-a-single-session-of-transcranial-direct-current-stimulation-on-upper-limb-movements-in-children-with-cerebral-palsy-a-randomized-sham-controlled-study
#1
Renata Calhes Franco Moura, Cibele Santos, Luanda Collange Grecco, Giorgio Albertini, Veronica Cimolin, Manuela Galli, Claudia Oliveira
INTRODUCTION: Motor impairment in children with spastic hemiparetic cerebral palsy (CP) is generally more prominent in the affected upper limb, leading to limitations in hand function stemming from deficiencies in motor coordination and selective motor control as well as muscle weakness, slower execution of movements and deficient integration of sensory-motor information. OBJECTIVE: Determine the effect of a single session of anodal transcranial direct current stimulation (tDCS) combined with functional training on the spatiotemporal variables of upper arm movements in children with spastic hemiparesis...
February 25, 2017: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/28623732/safety-and-acceptability-of-transcranial-direct-current-stimulation-for-the-acute-treatment-of-major-depressive-episodes-analysis-of-individual-patient-data
#2
Adriano H Moffa, André R Brunoni, 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-invasive brain stimulation modality that has been increasingly used for major depressive disorder (MDD) treatment. Although studies in healthy volunteers showed that the technique is well-tolerated, tDCS safety and acceptability have not been sufficiently explored in patients with MDD. METHODS: We collected individual patient data from 6 randomized clinical trials that had been previously identified in a systematic review and meta-analysis...
June 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28623718/transcranial-direct-current-stimulation-tdcs-reveals-a-dissociation-between-snarc-and-marc-effects-implication-for-the-polarity-correspondence-account
#3
Elisa Di Rosa, Lara Bardi, Carlo Umiltà, Fabio Masina, Margherita Forgione, Daniela Mapelli
The concept of stimulus response compatibility (SRC) refers to the existence of a privileged association between a specific stimulus feature and a specific response feature. Two examples of SRC are the Spatial Numerical Association of Response Codes (SNARC) and the Markedness Association of Response Codes (MARC) effects. According to the polarity correspondence principle, these two SRC effects occur because of a match between the most salient dimensions of stimulus and response. Specifically, the SNARC effect would be caused by a match between right-sided responses and large numbers, while a match between right-sided responses and even numbers would give rise to the MARC effect...
May 25, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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
#4
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/28611529/non-invasive-stimulation-techniques-to-relieve-abdominal-pelvic-pain-is-more-always-better
#5
COMMENT
Marie-Philippe Harvey, Alain Watier, Émilie Dufort Rouleau, Guillaume Léonard
Chronic abdominal and pelvic pain is a common condition that has significant impact on quality of life, and causes billions of dollars in direct and indirect costs. Emerging data suggest that transcranial direct current stimulation (tDCS), alone or in combination with transcutaneous electrical nerve stimulation (TENS), could be a promising therapeutic avenue to reduce chronic pain. The encouraging results coming from these studies prompted us to try combining TENS and tDCS in 4 of our patients who suffered from chronic abdominal/pelvic pain and to compare the effect with 5 other patients who received TENS alone...
May 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28610848/modulating-phonemic-fluency-performance-in-healthy-subjects-with-transcranial-magnetic-stimulation-over-the-left-or-right-lateral-frontal-cortex
#6
Daniela Smirni, Patrizia Turriziani, Giuseppa Renata Mangano, Martina Bracco, Massimiliano Oliveri, Lisa Cipolotti
A growing body of evidence have suggested that non-invasive brain stimulation techniques, such as transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS), can improve the performance of aphasic patients in language tasks. For example, application of inhibitory rTMS or tDCs over the right frontal lobe of dysphasic patients resulted in improved naming abilities. Several studies have also reported that in healthy controls (HC) tDCS application over the left prefrontal cortex (PFC) improve performance in naming and semantic fluency tasks...
June 10, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28607219/transcranial-direct-current-stimulation-versus-user-training-on-improving-online-myoelectric-control-for-amputees
#7
Lizhi Pan, Dingguo Zhang, Ning Jiang, Xinjun Sheng, Xiangyang Zhu
OBJECTIVE: Transcranial direct current stimulation (tDCS) and user training (UT) are two types of methods to improve myoelectric control performance for amputees. In this study, we compared the independent effect between tDCS and UT, and investigated the combined effect of tDCS and UT. APPROACH: An online paradigm of simultaneous and proportional control (SPC) based on electromyography (EMG) was adopted. The proposed experiments were conducted on six naïve unilateral trans-radial amputees...
June 13, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28605527/effect-of-transcranial-direct-current-stimulation-of-the-motor-cortex-on-visceral-pain-in-patients-with-hepatocellular-carcinoma
#8
Nagwa Mostafa Ibrahim, Khaled Mohamed Abdelhameed, Shereen Mamdouh Mohamed Kamal, Eman Mohamed Hussein Khedr, Hassan Ibrahim Mohamed Kotb
Objective. : Hepatocellular carcinoma (HCC) is frequently associated with visceral pain. Transcranial direct current stimulation (tDCS) has been proven to reduce chronic pain; however, its effectiveness in malignant visceral pain is unknown. This study aimed to investigate the effects of tDCS in patients with visceral pain due to HCC. Design. : This is a randomized, sham-controlled, double-blind, prospective study. Forty patients with visceral pain due to HCC were enrolled and randomly assigned into two groups: a real and a sham group; tDCS was applied over the primary motor area (M1) for 10 consecutive days (2 mA, 30 minutes)...
June 12, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28602998/the-right-hemisphere-is-independent-from-the-left-hemisphere-in-allocating-visuospatial-attention
#9
Arianna Zuanazzi, Luigi Cattaneo
The capacity to allocate visuospatial attention is traditionally considered right-lateralized according to the effects of unilateral cerebral lesions. Contralateral hemi-spatial neglect occurs much more frequently after lesions of the right hemisphere, which has therefore been dubbed as 'dominant'. This pattern of symptoms is supported by functional models that postulate either independence or reciprocal influences between the two hemispheres. Here we specifically explored the dependency of the right hemisphere (RH) from the left hemisphere (LH) in spatial attention...
June 9, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28593094/anodal-transcranial-direct-current-stimulation-tdcs-increases-isometric-strength-of-shoulder-rotators-muscles-in-handball-players
#10
Fuad Ahmad Hazime, Ronaldo Alves da Cunha, Renato Rozenblit Soliaman, Ana Clara Bezerra Romancini, Alberto de Castro Pochini, Benno Ejnisman, Abrahão Fontes Baptista
BACKGROUND: Weakness of the rotator cuff muscles can lead to imbalances in the strength of shoulder external and internal rotators, change the biomechanics of the glenohumeral joint and predispose an athlete to injury. Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that has demonstrated promising results in a variety of health conditions. However few studies addressed its potential approach in the realm of athletics. HYPOTHESIS/PURPOSE: The purpose of this study was to investigate if transcranial direct current stimulation (tDCS) technique increases the isometric muscle strength of shoulder external and internal rotators in handball athletes...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28592857/effects-of-transcranial-direct-current-stimulation-on-temperature-and-pain-perception
#11
Laura Mordillo-Mateos, Michele Dileone, Vanesa Soto-León, Angela Brocalero-Camacho, Yolanda A Pérez-Borrego, Ana Onate-Figuerez, Juan Aguilar, Antonio Oliviero
Transcranial direct current stimulation modifies cortical excitability and in consequence some cerebral functions. In the present study we aimed to elucidate whether tDCS could affect temperature and pain perceptions in healthy subjects testing different stimulation parameters. A total of 20 healthy subjects were studied by means of quantitative sensory testing. Two different experiments were performed. First, we studied the effects of 15 minutes 2 mA anodal transcranial direct current stimulation applied over left M1 and parietal cortex in two separated sessions...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28592845/relaxing-learned-constraints-through-cathodal-tdcs-on-the-left-dorsolateral-prefrontal-cortex
#12
Caroline Di Bernardi Luft, Ioanna Zioga, Michael J Banissy, Joydeep Bhattacharya
We solve problems by applying previously learned rules. The dorsolateral prefrontal cortex (DLPFC) plays a pivotal role in automating this process of rule induction. Despite its usual efficiency, this process fails when we encounter new problems in which past experience leads to a mental rut. Learned rules could therefore act as constraints which need to be removed in order to change the problem representation for producing the solution. We investigated the possibility of suppressing the DLPFC by transcranial direct current stimulation (tDCS) to facilitate such representational change...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28588467/literature-review-on-the-effects-of-tdcs-coupled-with-robotic-therapy-in-post-stroke-upper-limb-rehabilitation
#13
REVIEW
Davide Simonetti, Loredana Zollo, Stefano Milighetti, Sandra Miccinilli, Marco Bravi, Federico Ranieri, Giovanni Magrone, Eugenio Guglielmelli, Vincenzo Di Lazzaro, Silvia Sterzi
Today neurological diseases such as stroke represent one of the leading cause of long-term disability. Many research efforts have been focused on designing new and effective rehabilitation strategies. In particular, robotic treatment for upper limb stroke rehabilitation has received significant attention due to its ability to provide high-intensity and repetitive movement therapy with less effort than traditional methods. In addition, the development of non-invasive brain stimulation techniques such as transcranial Direct Current Stimulation (tDCS) has also demonstrated the capability of modulating brain excitability thus increasing motor performance...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28588441/tempering-proactive-cognitive-control-by-transcranial-direct-current-stimulation-of-the-right-but-not-the-left-lateral-prefrontal-cortex
#14
Carlos J Gómez-Ariza, María C Martín, Julia Morales
Behavioral and neuroimaging data support the distinction of two different modes of cognitive control: proactive, which involves the active and sustained maintenance of task-relevant information to bias behavior in accordance with internal goals; and reactive, which entails the detection and resolution of interference at the time it occurs. Both control modes may be flexibly deployed depending on a variety of conditions (i.e., age, brain alterations, motivational factors, prior experience). Critically, and in line with specific predictions derived from the dual mechanisms of control account (Braver, 2012), findings from neuroimaging studies indicate that the same lateral prefrontal regions (i...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28587498/surface-eeg-transcranial-direct-current-stimulation-tdcs-closed-loop-system
#15
Jorge Leite, Leon Morales-Quezada, Sandra Carvalho, Aurore Thibaut, Deniz Doruk, Chiun-Fan Chen, Steven C Schachter, Alexander Rotenberg, Felipe Fregni
Conventional transcranial direct current stimulation (tDCS) protocols rely on applying electrical current at a fixed intensity and duration without using surrogate markers to direct the interventions. This has led to some mixed results; especially because tDCS induced effects may vary depending on the ongoing level of brain activity. Therefore, the objective of this preliminary study was to assess the feasibility of an EEG-triggered tDCS system based on EEG online analysis of its frequency bands. Six healthy volunteers were randomized to participate in a double-blind sham-controlled crossover design to receive a single session of 10[Formula: see text]min 2[Formula: see text]mA cathodal and sham tDCS...
April 11, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28583011/cognitive-training-and-noninvasive-brain-stimulation-for-cognition-in-parkinson-s-disease-a-meta-analysis
#16
Blake J Lawrence, Natalie Gasson, Romola S Bucks, Lakkhina Troeung, Andrea M Loftus
BACKGROUND: Many people with Parkinson's disease (PD) experience cognitive decline. It is not known whether cognitive training or noninvasive brain stimulation are effective at alleviating cognitive deficits in PD. OBJECTIVE: To examine cognitive training and non-invasive brain stimulation interventions for cognition in PD. METHODS: An extensive search was conducted of published and unpublished studies in online databases. Studies were selected if they were controlled trials examining standard (not individualized) or tailored (individualized) cognitive training, repetitive transcranial magnetic stimulation (rTMS), or transcranial direct current stimulation (tDCS) in PD, with outcomes measured by standardized neuropsychological tests...
June 1, 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28577024/voluntary-movement-reverses-the-effect-of-cathodal-transcranial-direct-current-stimulation-tdcs-on-corticomotor-excitability
#17
Esra Erkoc Ataoglu, Hale Batur Caglayan, Bülent Cengiz
Motor cortex activity level is a critical part of the effect of transcranial direct current stimulation (tDCS) on corticomotor excitability. Based on homeostatic plasticity, the state of the stimulated cortical area influences the direction of neuroplastic changes induced by stimuli. Owing to homeostatic plasticity, cathodal tDCS (c-tDCS) would likely have a pronounced inhibitory effect on corticomotor excitability during a motor task, compared with the resting state. To test this hypothesis, we detected motor evoked potential (MEP) amplitude changes before and during c-tDCS with voluntary movement...
June 2, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28572072/the-critical-role-of-cognitive-based-trait-differences-in-transcranial-direct-current-stimulation-tdcs-suppression-of-food-craving-and-eating-in-frank-obesity
#18
Mary Katherine Ray, Maria D Sylvester, Lauren Osborn, Joel Helms, Bulent Turan, Emilee E Burgess, Mary M Boggiano
Obesity remains a major public health concern and novel treatments are needed. Transcranial direct current stimulation (tDCS) is a neuromodulation technique shown to reduce food craving and consumption, especially when targeting the dorsolateral prefrontal cortex (DLPFC) with a right anode/left cathode electrode montage. Despite the implications to treat frank (non-bingeeating) obesity, no study has tested the right anode/left cathode montage in this population. Additionally, most tDCS appetite studies have not controlled for differences in traits under DLPFC control that may influence how well one responds to tDCS...
May 29, 2017: Appetite
https://www.readbyqxmd.com/read/28572060/multifocal-tdcs-targeting-the-resting-state-motor-network-increases-cortical-excitability-beyond-traditional-tdcs-targeting-unilateral-motor-cortex
#19
D B Fischer, P J Fried, G Ruffini, O Ripolles, R Salvador, J Banus, W T Ketchabaw, E Santarnecchi, A Pascual-Leone, M D Fox
Scientists and clinicians have traditionally targeted single brain regions with stimulation to modulate brain function and disease. However, brain regions do not operate in isolation, but interact with other regions through networks. As such, stimulation of one region may impact and be impacted by other regions in its network. Here we test whether the effects of brain stimulation can be enhanced by simultaneously targeting a region and its network, identified with resting state functional connectivity MRI. Fifteen healthy participants received two types of transcranial direct current stimulation (tDCS): a traditional two-electrode montage targeting a single brain region (left primary motor cortex [M1]) and a novel eight-electrode montage targeting this region and its associated resting state network...
May 29, 2017: NeuroImage
https://www.readbyqxmd.com/read/28572057/transcranial-direct-current-stimulation-tdcs-to-improve-naming-ability-in-post-stroke-aphasia-a-critical-review
#20
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
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