نتایج جستجو برای: anodal electrical stimulation

تعداد نتایج: 421731  

2017
Marie C. Verhage Eric O. Avila Maarten A. Frens Opher Donchin Jos N. van der Geest

Background: Transcranial Direct Current Stimulation (tDCS) is a form of non-invasive electrical stimulation that changes neuronal excitability in a polarity and site-specific manner. In cognitive tasks related to prefrontal and cerebellar learning, cortical tDCS arguably facilitates learning, but the few studies investigating cerebellar tDCS, however, are inconsistent. Objective: We investigate...

Journal: :Journal of cognitive neuroscience 2009
Carlo Cerruti Gottfried Schlaug

The remote associates test (RAT) is a complex verbal task with associations to both creative thought and general intelligence. RAT problems require not only lateral associations and the internal production of many words but a convergent focus on a single answer. Complex problem-solving of this sort may thus require both substantial verbal processing and strong executive function capacities. Pre...

Fatemeh Keshvari, Hamed Ekhtiari, Hamid-Reza Pouretemad,

Introduction: Working memory plays a critical role in cognitive processes which are central to our daily life. Neuroimaging studies have shown that one of the most important areas corresponding to the working memory is the dorsolateral prefrontal cortex (DLFPC). This study was aimed to assess whether bilateral modulation of the DLPFC using a noninvasive brain stimulation, namely transcranial di...

Journal: :Virtual Reality 2021

Abstract The subjective presence experience in virtual reality (VR) is associated with distinct brain activation patterns. Particularly, the dorsolateral prefrontal cortex (DLPFC) seems to play a central role. We investigated effects of electric stimulation (transcranial direct current, tDCS) on as well activity and connectivity. Thirty-eight participants received either anodal ( N = 18) or cat...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2013
Robert Lindenberg Laura Nachtigall Marcus Meinzer Mira Maria Sieg Agnes Flöel

Bihemispheric transcranial direct current stimulation (tDCS) is thought to upregulate excitability of the primary motor cortex (M1) using anodal stimulation while concurrently downregulating contralateral M1 using cathodal stimulation. This "dual" tDCS method enhances motor learning in healthy subjects and facilitates motor recovery after stroke. However, its impact on motor system activity and...

2017
Toshinari Kazuta Kotaro Takeda Rieko Osu Satoshi Tanaka Ayako Oishi Kunitsugu Kondo Meigen Liu

OBJECTIVE The aim of this study was to investigate whether anodal transcranial direct current stimulation over the left temporoparietal area improved audioverbal memory performance in stroke patients. DESIGN Twelve stroke patients with audioverbal memory impairment participated in a single-masked, crossover, and sham-controlled experiment. The anodal or sham transcranial direct current stimul...

2017
Adam B. Weinberger Adam E. Green Evangelia G. Chrysikou

Creative cognition is frequently described as involving two primary processes, idea generation and idea selection. A growing body of research has used transcranial direct current stimulation (tDCS) to examine the neural mechanisms implicated in each of these processes. This literature has yielded a diverse set of findings that vary depending on the location and type (anodal, cathodal, or both) ...

2017
Giulia Prete Anita D'Anselmo Luca Tommasi Alfredo Brancucci

The aim of the present study was to test whether transcranial electrical stimulation can modulate illusory perception in the auditory domain. In two separate experiments we applied transcranial Direct Current Stimulation (anodal/cathodal tDCS, 2 mA; N = 60) and high-frequency transcranial Random Noise Stimulation (hf-tRNS, 1.5 mA, offset 0; N = 45) on the temporal cortex during the presentation...

2017
Soichiro Koyama Kei Nakagawa Satoshi Tanaka

Transcranial magnetic stimulation (TMS) over the opercular somatosensory region (OP), which includes the secondary somatosensory cortex and the insular cortex, suppresses pain sensation. However, whether transcranial direct current stimulation (tDCS) over the OP has a similar effect on pain sensation remains unknown. We examined whether pain sensation would be suppressed by tDCS over the OP. Ou...

Journal: :Circulation research 1999
R Ranjan G F Tomaselli E Marbán

-Anodal stimulation by external pacemakers has been explained on the basis of bidomain models of cardiac tissue. Bidomain models predict that anodal stimuli will hyperpolarize the underlying tissue while adjacent regions become depolarized (virtual cathodes), initiating excitation. We investigated the contribution of active cellular properties to anode-break stimulation. A bidomain model was im...

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