Continental philosophy
In contemporary metaphysics, the matter of personal identity is referred to as the "diachronic problem" of personal identity. The "synchronic problem" concerns the question of what features and traits characterize a person at a given time. Analytic philosophy and continental philosophy both inquire about the nature of identity. Continental philosophy deals with conceptually maintaining identity when confronted by different philosophic propositions, postulates, and presuppositions about the world and its nature.