Bodily illusions in health and disease: Physiological and clinical perspectives and the concept of a cortical 'body matrix'

► We propose that multisensory and homeostatic brain areas maintain a 'body matrix'. ► This dynamic representation integrates peripersonal and body-centred spatial data. ► It plays an important role in maintaining homeostatic control over the body. ► Its disruption can have deleterious and beneficial effects in clinical populations.