Abstract
It appears that the breakdown of the metaphysical identity of the subject, could draw consequences as the absence of a "human nature" a "humanitas". Hence issues rethink how What is the subject? or what can you say about him? O Where is this guy ?, all resignified and problematized through the prism of neuroscience. Thus, scientific progress and the emergence of new neurochemical concepts have triggered a process of reconfiguration of subjectivity, a redesign of the human. Hermeneutics of self and intersubjectivity are based on a dialogue of knowledge, in an ethics of otherness and a politics of difference. Here we try to explain the instinctual and neurochemical flow that constitutes us and that is just hug the body, the whole body, original and principial instance that appears to us as the world.

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