Han Yuan1, Raquel Phillips1, Kymberly D. Young1, Vadim Zotev1, Masaya Misaki1, Jerzy Bodurka1, 2
1Laureate Institute for Brain Research, Tulsa, OK, United States; 2College of Engineering, University of Oklahoma, Norman, OK, United States
We investigated possibility of brain plasticity effects in depressed subjects subjected to the real-time fMRI neurofeedback (rtfMRI-nf) training of amygdala activity during happy autobiographic memory recall. We compared the resting-state default-mode network (DMN) functional connectivity before and after rtfMRI-nf. Significant difference of DMN connectivity was found in the subjects after neurofeedback: increased in the medial prefrontal cortex and the posterior cingulate cortex, but decreased in the right medial temporal gyrus. The within-group, correlation analysis found positive correlation between the difference of DMN connectivity and the happiness/memory scores during the neurofeedback. Our results demonstrate sustainable changes within DMN induced by rtfMRI-nf.