Peripersonal Space Representation in Upper Limb Segmental Exclusion

Segmental exclusion syndrome often occurs after limb trauma and manifests as a neglect-like behavior of peripheral origin, sometimes associated with Complex Regional Pain Syndrome (CRPS). The study explores whether the lack of limb use affects the representation of peripersonal space (PPS)-the space immediately surrounding the body where interactions with objects occur. The study is monocentric, observational, with a matched control group. Participants will undergo: Clinical assessment (questionnaires on pain, anxiety, body perception, and kinesiophobia). A Virtual Reality (VR) test (approx. 40 minutes). In VR, participants will judge whether a cylinder presented at different distances and angles is reachable without moving (Perceived Reachable Distance - DMA-p). This will be compared to their Real Reachable Distance (DMA-r). The goal is to measure the error of judgment to assess PPS representation and check for correlations with body schema disturbances or functional impairment