A5030158764- Transcranial Magnetic Stimulation Studies
- EEG and Brain-Computer Interfaces
- Neural and Behavioral Psychology Studies
- Muscle activation and electromyography studies
- Vestibular and auditory disorders
- Functional Brain Connectivity Studies
- Neuroscience and Neural Engineering
- Motor Control and Adaptation
- Spatial Neglect and Hemispheric Dysfunction
- Circadian rhythm and melatonin
- Neurological disorders and treatments
- Attention Deficit Hyperactivity Disorder
- Sleep and Wakefulness Research
- Pain Management and Treatment
- Intraoperative Neuromonitoring and Anesthetic Effects
- Stroke Rehabilitation and Recovery
- Sensor Technology and Measurement Systems
- Electrical and Bioimpedance Tomography
- Wireless Power Transfer Systems
- Flow Measurement and Analysis
- Energy Harvesting in Wireless Networks
- Cerebrovascular and Carotid Artery Diseases
- Eating Disorders and Behaviors
- Mind wandering and attention
- Photoreceptor and optogenetics research
TU Dortmund University
2017-2025
Leibniz Research Centre for Working Environment and Human Factors
2017-2025
Technische Universität Ilmenau
2019-2023
University of Isfahan
2010-2016
Shahid Bahonar University of Kerman
2013
Tarbiat Modares University
2013
Kerman University of Medical Sciences
2010
BackgroundAccording to the neurocognitive model of addiction, development and maintenance drug addiction is associated with cognitive control deficits, as well decreased activity prefrontal regions, especially dorsolateral cortex (DLPFC). This study investigated how improving executive functions (EFs) impacts methamphetamine-use disorder, which has been less explored compared craving, but might be a central aspect for therapeutic efficacy DLPFC stimulation in addiction.MethodsWe assessed 10...
Abstract Size and duration of the neuroplastic effects tDCS depend on stimulation parameters, including intensity current. The impact parameters physiological is partially non-linear. To improve utility this intervention, it critical to gather information about neuroplasticity, while expanding parameter space efficacy. Anodal 1–3 mA current was applied for 15–30 minutes study motor cortex plasticity. Sixteen healthy right-handed non-smoking volunteers participated in 10 sessions...
Circadian rhythms have natural relative variations among humans known as chronotype. Chronotype or being a morning evening person, has specific physiological, behavioural, and also genetic manifestation. Whether how chronotype modulates human brain physiology cognition is, however, not well understood. Here we examine cortical excitability, neuroplasticity, are associated with in early late individuals. We monitor motor stimulation-induced learning cognitive functions at circadian-preferred...
BackgroundA single session of anodal tDCS induces LTP-like plasticity which lasts for about 1 h, while repetition stimulation within a time interval 30 min results in late-phase effects lasting at least 24 h with standard protocols.ObjectiveIn this pilot study, we explored if the after-effects recently developed intensified protocol are relevantly prolonged motor cortex by intervention.Methods16 healthy right-handed subjects participated study. The an (3 mA-20min) and (1 mA-15min) short (20...
Transcranial direct current stimulation (tDCS), a neuromodulatory non-invasive brain technique, has shown promising results in basic and clinical studies. The known interindividual variability of the effects, however, limits efficacy technique. Recently we reported neurophysiological effects tDCS applied over primary motor cortex at group level, based on data from twenty-nine participants who received 15min either sham, 0.5, 1.0, 1.5 or 2.0 mA anodal, cathodal tDCS. were evaluated via...
BackgroundCognitive, and motor performance are reduced in aging, especially with respect to acquisition of new knowledge, which is associated a neural plasticity decline. Animal models show reduction long-term potentiation, but not depression, higher age. Findings humans more heterogeneous, some studies showing respective deficits, others not, or mixed results, for induced by non-invasive brain stimulation. One reason these heterogeneous results might be the inclusion different age ranges...
BackgroundtDCS modulates cortical plasticity and has shown potential to improve cognitive/motor functions in healthy young humans. However, age-related alterations of brain structure might require an adaptation tDCS-parameters achieve a targeted effect older humans conclusions obtained from adults not be directly transferable adults. Thus, our study aimed systematically explore the association between induced aftereffects on motor excitability determine optimal stimulation protocols for...
Neuromodulatory effects of transcranial direct current stimulation (tDCS) in older humans have shown heterogeneous results, possibly due to sub-optimal protocols associated with limited knowledge about optimized parameters this age group. We systematically explored the association between dosage cathodal tDCS and induced after-effects on motor cortex excitability elderly.Thirty-nine healthy volunteers two groups, namely Pre-Elderly (50-65 years) Elderly (66-80 years), participated study. Ten...
Abstract Calculations of the electric field (E-field) are important for addressing variability in physical dose transcranial stimulation (tES). These calculations rely on precise knowledge individual head and brain anatomy choosing appropriate ohmic conductivities different tissue compartments. In particular, conductivity white matter to a lesser extent gray is anisotropic. Consensus importance account anisotropy E-field still lacking. Most simulation studies use isotropic conductivities,...
This study explores the impact of stress on working memory (WM) performance, and potential mitigating effects transcranial direct current stimulation (tDCS) over left dorsolateral prefrontal cortex (dlPFC) ventromedial (vmPFC). The had a mixed, randomized, single-blind, sham-controlled design, with induction as within-subject condition between-subject factors. We assessed stress-induced WM deficits using aversive video clips to induce verbal n-back task assess performance. analyzed...
Key points To explore the capability of cathodal transcranial direct current stimulation (tDCS) to induce late‐phase long‐term depression (LTD) via repeated stimulation. Conventional (1 mA for 15 min) and intensified (3 20 protocols with short (20 long (24 h) intervals were tested. Late‐phase plasticity was not induced by a single repetition Repetition reduced efficacy higher intensities. Abstract Transcranial has shown promising results in pilot studies as therapeutic intervention disorders...
The serotonergic system has an important impact on basic physiological and higher brain functions. Acute chronic enhancement of serotonin levels via selective reuptake inhibitor administration impacts neuroplasticity in humans, as shown by its effects cortical excitability alterations induced non-invasive stimulation, including transcranial direct current stimulation (tDCS). Nevertheless, the interaction between activation is not fully understood, particularly considering dose-dependent...
Professional sports performance relies critically on the interaction between brain and muscles during movement. Transcranial direct current stimulation (tDCS) is a noninvasive technique which modulates cortical excitability can be used to improve motor in athletes. The present study aimed investigate effect of bilateral anodal tDCS (2 mA, 20 min) over premotor cortex or cerebellum physiological functions peak professional gymnastics Seventeen athletes participated randomized,...
In the development of bioelectric impedance measuring systems, design a stable current source with broad bandwidth and high output is an important consideration. Howland circuit well known performance, voltage controlled which can provide as frequency bandwidth. This paper presents detailed study by considering non-ideal characteristics components. Two different forms are compared resulted relationship were evaluated simulations. The results this facilitate for measurement systems.
Abstract This study explored the efficacy of inducing stress through aversive video clips and investigated its impact on psychological processes, brain, vegetative physiology. It had a randomized, single-blinded, crossover design, where participants were exposed in separate sessions to or neutral clips. Subjective feelings assessed via questionnaires. Electroencephalography (EEG) with 62 electrodes was recorded continuously. EEG power connectivity changes based coherence analyzed. Heart rate...
One of the most critical challenges in using non-invasive brain stimulation (NIBS) techniques for treatment psychiatric and neurologic disorders is inter- intra-individual variability response to NIBS. Response variations previous findings suggest that one-size-fits-all approach does not seem appropriate option enhancing outcomes. The optimal way target apply NIBS an individual yet be determined while there a growing body evidence its feasibility effectiveness. Transcranial electrical (tES)...