Effects of Transcranial Electrical Stimulation on Cognition

Alterations of cortical excitability, oscillatory as well as non-oscillatory, are physiological derivates of cognitive processes, such as perception, working memory, learning, and long-term memory formation. Since noninvasive electrical brain stimulation is capable of inducing alterations in the hum...

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Bibliographic Details
Published inClinical EEG and neuroscience Vol. 43; no. 3; pp. 192 - 199
Main Authors Kuo, Min-Fang, Nitsche, Michael A.
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.07.2012
SAGE PUBLICATIONS, INC
Subjects
Action Potentials - physiology
Action Potentials - radiation effects
Brain
Brain - physiology
Brain - radiation effects
Brain research
Cognition & reasoning
Cognition - physiology
Cognition - radiation effects
Electrodes
Evoked Potentials - physiology
Evoked Potentials - radiation effects
Humans
Medical imaging
Memory
Nerve Net - physiology
Nerve Net - radiation effects
Neuronal Plasticity - physiology
Neuronal Plasticity - radiation effects
Noise
Studies
Tomography
Transcranial Magnetic Stimulation - methods
Visual task performance
brain stimulation
memory
tDCS
tRNS
tACS
learning
neuroplasticity
perception
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Summary:Alterations of cortical excitability, oscillatory as well as non-oscillatory, are physiological derivates of cognitive processes, such as perception, working memory, learning, and long-term memory formation. Since noninvasive electrical brain stimulation is capable of inducing alterations in the human brain, these stimulation approaches might be attractive tools to modulate cognition. Transcranial direct current stimulation (tDCS) alters spontaneous cortical activity, while transcranial alternating current stimulation (tACS) and transcranial random noise stimulation (tRNS) are presumed to induce or interfere with oscillations of cortical networks. Via these mechanisms, the respective stimulation techniques have indeed been shown to modulate cognitive processes in a multitude of studies conducted during the last years. In this review, we will gather knowledge about the potential of noninvasive electrical brain stimulation to study and modify cognitive processes in healthy humans and discuss directions of future research.
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ISSN:1550-0594
2169-5202
DOI:10.1177/1550059412444975