We investigate how human brain represents the self using psychological and neuroimaging (fMRI, EEG), non-invasive brain stimulation (tDCS) techniques. We are specifically interested in neural mechanisms underlying corporeal self-consciousness, which is required to recognize that our own body (e.g. face, limbs) is our own. It is known that self-consciousness dramatically develops in school child age. To reveal how neuronal dynamics occur in this period, we are trying to scan the brains of elementary school children using fMRI.