“…Understanding well-being level of individuals is a challenging problem due to being dependent to self-reporting which is a subjective criteria (Diener, 1984). To objectively assess well-being, several neuroimaging studies have been performed to understand the neural correlates of well-being and it was reported that anterior cingulate cortex (ACC), orbitofrontal cortex (OFC), posterior cingulate cortex (PCC), superior temporal gyrus (STG) and thalamus was strongly associated to well-being and these regions are sub-components of default mode network (DMN) (see review (King, 2019)). This finding makes resting state functional connectivity (rsFC) based studies using fMRI (Kong, Liu, et al, 2015; Kong, Wang, et al, 2015; Kong, Wang, et al, 2016; Kong, Xue, et al, 2016; Luo et al, 2014; Luo et al, 2016; Luo et al, 2017; W. Sato et al, 2019) and fNIRS (F. Goldbeck et al, 2018) important to understand the underlying neural mechanisms of well-being.…”