Xenomelia: A Social Neuroscience View of Altered Bodily Self-Consciousness

Xenomelia, or 'foreign limb syndrome,' involves a person's persistent non-acceptance of a limb and desire for its amputation or paralysis. Originally viewed as a psychological disorder, recent emphasis on brain mechanisms has shifted focus to neural circuits. This article critiques both purely psychological and purely neurological accounts, arguing that neither fully explains the condition. The authors propose a 'xenomelia spectrum disorder' model that integrates social context, brain plasticity, and individual history shaped by culture. This approach respects the neuroanatomy of body awareness while acknowledging how lived experience and cultural background influence symptoms, advancing research on the unity of body and self.

Study at a glance

Abstract

Xenomelia, the “foreign limb syndrome,” is characterized by the non-acceptance of one or more of one’s own extremities and the resulting desire for elective limb amputation or paralysis. Formerly labeled “body integrity identity disorder” (BIID), the condition was originally considered a psychological or psychiatric disorder, but a brain-centered Zeitgeist and a rapidly growing interest in the neural underpinnings of bodily self-consciousness has shifted the focus toward dysfunctional central nervous system circuits. The present article outlays both mind-based and brain-based views highlighting their shortcomings. We propose that full insight into what should be conceived a “xenomelia spectrum disorder” will require interpretation of individual symptomatology in a social context. A proper social neuroscience of xenomelia respects the functional neuroanatomy of corporeal awareness, but also acknowledges the brain’s plasticity in response to an individual’s history, which is lived against a cultural background. This integrated view of xenomelia will promote the subfield of consciousness research concerned with the unity of body and self.