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Comparison of online vs offline effects of HD-tDCS induced modulation of cortical sensorimotor networks using a combined fNIRS-EEG setup


Muthalib M, Dutta A, Besson P, Rothwell, Tomas Ward, Perrey S

Publication Type: 
Refereed Conference Meeting Proceeding
High-definition transcranial direct current stimulation (HD- tDCS) targeting the primary sensorimotor cortex (SMC) can produce comparable “Offline” excitability changes to conventional tDCS in a polarity specific manner (1). However, it is not clear how HD-tDCS modifies “Online” neuronal activity and haemodynamics within the modulated cortical sensorimotor network at rest and during a motor task. In this proof-of-principle case study, we first setup a HD-tDCS-neuroimaging (electrophysiological-EEG and haemodynamic-fNIRS) platform to target the SMC and simultaneously measure bilateral cortical sensorimotor network activation. Then we tested the system on one healthy subject to compare the “Online” and “Offline” effects of anodal HD-tDCS on fNIRS and EEG components.
Conference Name: 
Neuroscience Conference 2014
Neuroscience Conference 2014
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Conference Location: 
United States of America
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