Neural interfaces as a tool for the transformation of the "phenomenal body": from embodiment to excorporation

This paper presents an interdisciplinary analysis of the impact of neural interfaces (NIs) on the fundamental structures of human self-awareness, specifically the construct of the "phenomenal body". The core thesis of the research is that the phenomenal body – the subjectively experienced unity and ownership of bodily experience – is not a static given but is sustained by a dynamic equilibrium of proprioceptive, vestibular, and interoceptive signals that ensure ontological security and the authenticity of the "Self". The article argues that neural interfaces, by establishing a direct bypassing pathway for sensorimotor control and perception, act as a catalyst for a profound transformation of this construct. We trace the trajectory of this transformation: from embodiment – a traditional state characterized by the inseparable link between consciousness and the biological body – to excorporation – a new modality of corporeality in which an individual's sense of self migrates, expands, or is partially transferred to external, synthetic, or virtual agents.Within the framework of the paper, the mechanisms of this deconstruction are analyzed: the disruption of the proprioceptive loop, the modulation of affective homeostasis, and the redefinition of the boundaries between "self" and "non-self". The study is theoretical and philosophical in nature, drawing on the conceptual apparatus of phenomenology, neuroscience (in particular, Antonio Damasio's theory of somatosensory homeostasis), and Science and Technology Studies (STS). The conclusion discusses the ethical and existential implications of this shift, which concern issues of identity, agency, and the new configuration of human existence in the age of symbiosis with technology.