Abstract

While there is still a limited understanding of the Selfhood phenomenon, an emerging consensus is that the experiential Selfhood refers to a sense of the undergoing experience in its implicit first-person mode of givenness that is immediately and tacitly given as “mine”. It is also evident that there are phenomenological disruptions within self-consciousness ranging from normal everyday short-lived dissociative episodes to pathological, intense and prolonged forms of dissociative experience classified as depersonalization disorder (DD). In the present study we explored the neurophenomenology of Selfhood (using the recently introduced neurophysiological three-dimensional construct model of experiential Selfhood, Fingelkurts et al., 2020) in a newly diagnosed and untreated 29-year-old female who suffers from DD. According to the triad model of Selfhood, three major components of Selfhood (phenomenal first-person agency – “Self”, embodiment – “Me”, and reflection/narration – “I”) are related to three operational modules (OMs) of the self-referential brain network (reliably estimated by electroencephalogram operational synchrony analysis). We have found that subject with DD exhibited a strong enhancement of functional integrity of the brain Self-module, a moderate decrease in the functional integrity of Me-module, and a pronounced decrease in the functional integrity of I-module, – all of which were associated with severity of specific DD symptoms.