PhronesisWe apply the Displacement Framework to Depersonalization-Derealization Disorder (DPDR), formalizing it as a formally unique psychiatric condition: not a conventional wrong attractor with elevated D(ξ) but a failure to access S°_self — the experiential ground state — at all. The self ground state is defined across five dimensions: felt continuity of self-experience, embodied presence, perceptual immediacy, emotional resonance, and temporal continuity.
The critical property of S°_self is transparency — in the healthy state, the self is not an object of observation but the subject doing the observing; it disappears into experience. DPDR is displacement from first-person subject position into a third-person observer position: the self becomes an object of observation. The wrong attractor W_DPDR is the observer stance — maintained by three interlocking mechanisms: meta-cognitive amplification (checking one's own unreality deepens it), the anxiety-disconnection loop (distress activates the prefrontal-limbic inhibition that maintains disconnection), and avoidance reinforcement.
The neurobiological substrate involves limbic hypoactivation, anomalous prefrontal cortex inhibition of emotional processing (Hunter et al.), and insula hypofunction producing interoceptive disconnection; 5-HT2A receptor involvement explains cannabis and psychedelic triggers. The compulsive reality-checking behavior is formalized as a self-reinforcing wrong-attractor maintenance mechanism: the attempt to escape W_DPDR can only be performed from within it, deepening the basin with each pass.
Nine formal propositions are derived including the return paradox (P7): the path back to S°_self requires not trying to reach it — effortful re-embodiment is an observer-stance activity. The philosophical dimension is addressed: DPDR as phenomenological data revealing the normally-invisible construction of felt reality.