Schizophrenia is primarily characterized by a disruption of the core self, which is deeply rooted in bodily experience—the bodily self. In individuals with schizophrenia, this sense of the bodily self is significantly altered, reflecting changes in both exteroceptive (external sensory) and interoceptive (internal bodily) processing. This presentation will explore how disturbances in multisensory integration and interoceptive processes contribute to altered body representations, shaping various symptom dimensions across the schizophrenia spectrum. Particular attention will be given to the roles of respiration, excitation/inhibition (E/I) imbalance, and multisensory disruptions, as well as their reciprocal interactions. By examining these factors, we aim to offer novel insights into the mechanisms underlying bodily self-disturbances in schizophrenia and discuss potential avenues for targeted therapeutic interventions