Abstract
Transcranial Direct Current Stimulation (tDCS) is a non-invasive cortical stimulation technology. It uses weak direct currents to modulate the cortical activity below the motor threshold. To better understand the effects of tDCS-induced activation during motor performance, primary motor cortex (M1) activation changes were measures by fNIRS before and after applying tDCS on left M1 with a finger tapping task in eight healthy subjects. This study finds that the effect of tDCS depends on the current polarity. Anodal stimulation excites certain cortical regions and cathodal stimulation produces opposite effect. The finding in this research suggests that the combined use of fNIRS and tDCS can be a useful tool to understand the effect of tDCS. tDCS combined fNIRS can provide insights into changes in activity induced by tDCS, which may find future use guidance on motor rehabilitation.
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Lei, T., Ma, D., Jiang, F. (2016). Mapping the Cortical Activation Changes Induced by Transcranial Direct Current Stimulation: A fNIRS-tDCS Study. In: Qi, E. (eds) Proceedings of the 6th International Asia Conference on Industrial Engineering and Management Innovation. Atlantis Press, Paris. https://doi.org/10.2991/978-94-6239-145-1_34
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DOI: https://doi.org/10.2991/978-94-6239-145-1_34
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