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Showing 1-18 of 18 trials
NCT05286645
To investigate the intervention effect of high definition transcranial direct current stimulation (HD-tDCS) on somatic symptoms in patients with depressive disorder and its underlying neural mechanism by MRI.
NCT03655769
Cathodal Transcranial direct current stimulation (tDCS) was administered to the right parietal region in order to determine if this stimulation could disrupt awareness of the conditioned stimulus (CS) - unconditioned stimulus (US) relationship in a classical conditioning experiment.
NCT06878326
Background: Transcranial Direct Current Stimulation (tDCS) is a form of non-invasive brain stimulation that has aroused increased interests in the past decade. Not only that it is transient with little side-effects, and can be well-tolerated by children, it is also affordable and readily accessible, making it an appealing treatment option for autism spectrum disorder (ASD). Objective: (1) To evaluate the therapeutic effects of tDCS on improving cognitive function in patients with ASD, (2) to better understand the neural mechanisms underlying the neuromodulation effects of tDCS in patients with ASD, and (3) to determine whether resting-state functional connectivity measures can predict the therapeutic effects of active tDCS in individuals with ASD. Methods: To assess the therapeutic effects and neural mechanisms of tDCS, 90 adolescents with ASD (age 12-22 years) will receive three stimulation conditions: cathodal tDCS of the left DLPFC, anodal tDCS of the left DLPFC and sham-tDCS with at least a week apart each time. During the active tDCS or sham-tDCS condition, the participants will be administered a computerized test battery (Cambridge Neuropsychological Test Automated Battery, CANTAB®) to evaluate their cognitive function. EEG before and after the tDCS to evaluate the tDCS-induced alteration in their neural activity and functional connectivity. Hypothesis: Drawing together the different evidence linking ASD with cortical hyper-excitability and disordered neural connectivity, as reviewed previously, the investigators hypothesize that, relative to a sham-tDCS condition, active cathodal (inhibitory) and anodal (excitatory) tDCS over the left DLPRC will induce stimulation-linked facilitation of learning and resultant improvement of cognitive functioning in patients with ASD. In addition to the therapeutic effects of tDCS, enhanced neural connectivity, as indexed by altered level EEG theta coherence in patients with ASD, will mediate the beneficial effects of tDCS, relative to sham tDCS, on improvements in cognitive function. Moreover, resting-state functional connectivity will moderate the beneficial effects of active tDCS on cognitive function, relative to sham tDCS, such that participants with greater pre-treatment resting state functional connectively will evidence greater/less response to tDCS, relative to participants receiving sham tDCS.
NCT04599764
To investigate the clinical effect neural mechanism of high-definition transcranial direct current stimulation combined with cognitive training on early AD
NCT06290492
To investigate the intervention effect of transcranial direct current stimulation (tDCS) on subjective and objective insomnia symptoms and daytime function of chronic insomnia patients.
NCT05293431
Background: By the end of 2020, the coronavirus disease (COVID-19) pandemic resulted in over 84 million cases and nearly 2 million deaths. Continued confinement and restriction are expected to negatively affect mental health, however, some individuals are likely to show much less negative impact than others. The characterization and neurobiological determinants of brain resilience vs vulnerability during the pandemic should generate critical knowledge and open future avenues for individually tailored interventions. Objectives: 1. Identify the individual psychobiological determinants of resilience during COVID-19 pandemic. 2. Conduct a non-invasive brain stimulation intervention to modulate the expression of resilience brain networks. Methods: Barcelona Brain Health Initiative participants will be included, encompassing multiple assessments before and during the COVID-19 pandemic. Machine learning techniques will be applied to define brain networks signature of resilience. Subsequently transcranial alternating stimulation will be used during a controlled trial intervention to promote the expression of brain resilience networks. Expected results: The present project should provide critical new knowledge on brain mechanisms underlying resilience and first evidences of the feasibility and impact of modulating brain resilience networks in terms of its effects on mental health of participants.
NCT05841329
The goal of this clinical trial is to examine whether transcranial direct current stimulation(tDCS) can enhance the effect of virtual reality exposure therapy(VRET) in acrophobia in college students with significant fear of heights. The main question it aims to answer are: • the enhancement of tDCS on the effect of VRET Participants will randomly allocated to tDCS active stimulated group and sham stimulated group and receive VRET.
NCT02210403
The purpose of this study is to determine whether tDCS in combination with motor training can improve hand and arm function in stroke patients.
NCT04819061
Parkinson's disease (PD) is a progressive and disabling neurodegenerative disease, clinically characterized by motor and non-motor symptoms. The potential of the "Transcranial direct current stimulation" (tDCS) for symptomatic improvement in these patients has been demonstrated, but the factors associated with the best therapeutic response are not known. The electroencephalogram (EEG) is considered as a diagnostic and prognostic biomarker of PD, and has been used in recent studies associated with machine-learning methods to identify predictors of responses in neurological and psychiatric conditions. Using connectivity-based prediction and machine-learning, the investigators intend to identify and compare characteristics related to baseline resting EEG between PD responders and non-responders to tDCS treatment. The recruited participants will be randomized to treatment with active tDCS associated with dual-task motor therapy or motor therapy with visual cues. A resting-state electroencephalography (EEG) will be recorded prior to the start of the treatment. The investigators will determine clinical improvement labels used for machine learning classification, in baseline and posttreatment assessments and will use three different methods to categorize the data into two classes (low or high improvement): Support Vector Machine (SVM), Linear Discriminant Analysis (LDA) and Extreme Learning Machine (ELM). The functional label will be based on the Timed Up and Go Test recorded at baseline and posttreament of tDCS treatment.
NCT04226417
The aim of the present study is to investigate the effect of home based dual tDCS combined with exercise on upper and lower limb motor functions in chronic ischemic stroke patients.
NCT03446378
In this study, it is wondered whether cortical excitability level could predict/direct the use of transcranial direct current stimulation combined with physical therapy on upper limb rehabilitation of post stroke patients. Furthermore, the study aims to correlate the motor recovery with cortical excitability level. For this purpose, after basal evaluation, patients will be classified according motor function evaluated by Fugl Meyer in following categories: (ii) moderate: more than 19 points on Fulg Meyer (ii) severe: less than 19 points on Fulg Meyer.
NCT04117256
Randomized controlled trial, in parallel with cross-control design. Two groups of healthy subjects will be randomly selected to transcranial stimulation group or suboccipital stimulation group. Each group receive in a randomized order a real direct current session and a sham session. The study is based on the hypothesis that the application of direct current sitmulation applied at the suboccipital level produce higher modifications on endogenous pain modulation system than transcranial stimulation.
NCT03680664
Ideal interventions for the older aged population would be those that are easily accessible and associated with minimal burden on family members, the healthcare system and the individuals themselves. Mindfulness-Based Stress Reduction (MBSR) therapy and Transcranial Direct Current Stimulation (tDCS) are two interventions that may be effective in targeting cognitive deficits in individuals with anxiety, depression, and/or cognitive complaints. MBSR has been shown to decrease symptoms of depression and improve cognition and tDCS has been shown to improve cognition in the older aged population. The effectiveness of these two interventions combined to elicit changes in cognition has yet to be demonstrated. Therefore, the overall aim of the current research is to evaluate the efficacy of a combination of MBSR and tDCS to improve cognitive function in individuals with cognitive complaints and symptoms of anxiety and/or depression. This will be a randomized pilot study. Sixteen individuals (separated into 2 groups of 8) will be randomized to receive a combination MBSR + active tDCS or MBSR + sham tDCS over 8 weeks. Participants will visit the Centre for Addiction and Mental Health (CAMH) once per week for in-class group sessions and will complete the intervention daily at home for the duration of the study. Participants will be aged 60 and older with cognitive complaints, with symptoms of anxiety and/or depression. Participants will be trained to self-administer tDCS and given guidelines for the completion of daily MBSR activities at home. It is hypothesized that the combination of active tDCS + MBSR will enhance cognition compared to the combination of sham tDCS + MBSR.
NCT03845920
The current study would examine whether increases in endogenous dopaminergic activity via tyrosine and the (presumed) excitation of these by anodal tDCS of the dlPFC could causally be related to cognitive flexibility as measured by task switching and reversal learning. Additionally, the study will test whether the Val158Met-polymorphism in the catechol- O-methyltransferase (COMT) gene could also predict the effect of TYR supplementation, as this gene is involved in DA degradation in the prefrontal cortex.
NCT03548545
This is a parallel randomized, double-blinded, sham-controlled clinical trial in which a total of 72 drug-naïve MDD subjects (36 per arm) are randomized to one of two groups: Cognitive-Behavior Therapy (CBT) combined with either active or sham tDCS. The primary outcome is mood improvement, as measured by the Montgomery-Asberg Depression Rating Scale (MADRS). The secondary outcome is to test whether tDCS combined with CBT can engage the proposed mechanistic target, of restoring the prefrontal imbalance and connectivity, by changes over EEG.
NCT03184740
Technological advances and non-invasive techniques to modulate brain function have been developed, including transcranial Direct Current Stimulation (tDCS). Basically, electrodes are placed on the brain regions to stimulate or inhibit it. Subsequently, a continuous electrical current (0.4-2 mA) is imposed, for a period of 3-20 minutes, to modify cortical excitability. Few are the research groups that work on the topic of primary dysmenorrhea and the use of tDCS as the focus of study. Preliminary studies associated the use of tDCS with pain reduction, but the outcomes of physical and behavioral function needs further investigation.
NCT02958423
The purpose of the study is to compare the analgesic effect of 2 mA anodal direct current stimulation on the right primary motor cortex (M1) (tDCS) with a similar stimulation on the spine (D10) (tsDCS) in healthy volunteers (HV) followed by a pilot study in patients suffering of endometriosis-related chronic pelvic pain (CPP)
NCT02395874
To study the effect of combined tDCS plus speech therapy compared to sham-tDCS plus speech therapy in subacute stroke patients suffering from moderate or severe aphasia. The patients will be randomized by a computer-generated lot. Assessment will be performed at study onset, after six weeks at the end of the specific intervention and 4 months after stroke onset for follow-up.