EEG effective connectivity neurofeedback training increases sound-induced visual illusion K Yun, S Shimojo |
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Computation and Neural Systems, California Institute of Technology, CA, United States
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| EEG neurofeedback has been applied to modulate specific frequency amplitude in certain regions of the brain. Conventional EEG neurofeedback training has been targeting specific frequency range to modulate its amplitude. The purpose of the study was to test whether we can modulate effective connectivity (i.e., direction of information flow using partial directed coherence) between brain regions using neurofeedback training. We found that effective connectivity from auditory to visual cortex (A->V) increased after the A->V training and decreased after the negative A->V training. We also confirmed that effective connectivity neurofeedback training (A->V) increases sound-induced visual illusion. We suggest that not only the amplitude of specific brain regions, but also the connectivity of them can be modulated using neurofeedback training. |
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