Five Clinical Clusters, Engine-Verified: MDD, GAD, NPD, cPTSD, BPD

Five Presentations, Five Geometries

Five diagnostic categories walk into every clinical practice: major depressive disorder, generalized anxiety, narcissistic personality, complex post-traumatic stress, and borderline personality. Clinicians know these presentations by their phenomenology — the affective flatness of depression, the cognitive churn of anxiety, the explosive dysregulation of personality disorder. What do they look like structurally? Not as symptom lists, but as geometric configurations in a system that knows nothing about diagnostic manuals or ICD codes?

The Icosa engine takes raw capacity and domain values and computes three independent outputs: a capacity pattern, a domain pattern, and a formation. It doesn’t receive clinical labels. It runs math on the numbers and names what it finds.

Feed it the canonical structural profile for each of these five presentations — profiles built from clinical theory about what depression, anxiety, narcissism, complex trauma, and emotional instability do to the human system — and the engine’s output converges with clinical expectation. Not because someone programmed it to match a diagnosis code. Because the structural substrate that produces these clinical pictures is geometrically real, and the engine is reading geometry.

MDD: The Total Shutdown

The mdd_severe persona enters the engine with every capacity pulled under: Open at -2.0, Focus at -0.8, Bond at -2.0, Voice at -2.3. Every domain follows: Physical at -2.662, Emotional at -2.7, Mental at -1.737, Relational at -2.0, Spiritual at -1.962.

The engine names this: capacity pattern Total Shutdown, domain pattern Nullified, formation Contracted. Coherence lands at 13 — deep in the Severe band. 24 traps active, 15 basins including Receptive Closure, Bond Rupture, Action Inhibition, Affective Shutdown, and System Collapse.

What’s clinically striking is the uniformity. Every capacity under, every domain negative, every structural indicator pointing in the same direction. Depression at this level isn’t a mood problem — it’s a total structural event. The trap list reads like a clinical inventory: Rumination, Emotional Numbing, Cognitive Paralysis, Somatic Freeze, Identity Dissolution, Emotional Shutdown, Relational Withdrawal. Those aren’t symptoms the engine was told to find. They’re structural consequences of a grid where every capacity has dropped below its functioning threshold.

When all four capacities go under simultaneously, the system loses the ability to self-correct, because every pathway that could initiate repair is itself compromised. That’s the structural picture of treatment-resistant depression, visible in the geometry before anyone runs a PHQ-9.

GAD: The Fixating Loop

Anxiety doesn’t shut the system down. It locks it into overdrive in one direction. The gad_cognitive persona shows Open at -1.1 (under), Focus at 1.7 (over), Bond at 0.0 (centered), Voice at -0.5 (centered). Domain values cluster near zero everywhere except Mental, which spikes to 1.475.

The engine computes: capacity pattern Fixating, domain pattern Storming, formation Holding. Coherence is 63, in the Strained band. 6 traps active — Rumination, Emotional Numbing, Relational Withdrawal, Emotional Rumination, Identity Rigidity, Decisional Impulsivity — with 3 basins: Vigilance Lock, Guarded Scanning, Detached Surveillance.

A mind that can’t stop watching. Focus over means the scanning function won’t turn off. Open under means new information can’t get in — the system monitors but doesn’t receive. Mental running hot while everything else stays flat produces cognitive worry without somatic expression, without emotional processing, without relational engagement. You’re thinking about the threat but can’t do anything about it. The formation name, Holding, captures this: the system is gripping a position it can’t release.

Where depression activates 24 traps, anxiety activates only 6 — but those 6 create a self-reinforcing loop. Rumination feeds Identity Rigidity feeds Decisional Impulsivity feeds Rumination. The basins confirm it: Vigilance Lock and Guarded Scanning keep the system in exactly the configuration that produces the anxiety. The geometry isn’t describing the presentation. It’s showing you why it persists.

NPD: The Fanatical Surge

Narcissistic rage is structurally unrecognizable next to either. The npd_rage persona has Open at -1.0 (centered), Focus at 0.5 (centered), Bond at 1.0 (over), Voice at 2.5 (over). Domain values are nearly uniform — Physical, Emotional, Mental, and Spiritual all at 0.925 — with only Relational pulled to -0.475.

The engine produces: capacity pattern Fanatical, domain pattern (none), formation Activated. Coherence is 52, Strained band. 5 traps: Vocal Compulsion, Somatic Explosion, Emotional Explosion, Decisional Impulsivity, Zealous Burnout. 2 basins: Output Escalation and Discharge Loop.

Voice at 2.5 is the highest single capacity value across all five clusters — a system built to project, assert, and dominate. Bond over alongside Voice means the projecting happens at people, relational in its targeting even though the Relational domain is the only negative value. The domain pattern is empty because four of five domains are essentially equal; the engine can’t name a skew that isn’t there. What it sees is maximum output (Voice over) aimed through connection (Bond over) with limited receptivity (Open centered, not over).

The basins — Output Escalation and Discharge Loop — describe a system that escalates its own output and cycles through discharge without resolution. Not collapse. A system running hot with a clear directional vector: outward, loud, relentless.

C-PTSD: The Vacant Paradox

Complex trauma doesn’t produce the uniform shutdown of depression or the focused lockup of anxiety. The cptsd_full persona shows Open at 0.3 (centered), Focus at -1.6 (under), Bond at -1.2 (under), Voice at -0.8 (under). Three capacities under, one centered. That asymmetry is the entire clinical picture.

Domain values show multi-domain suppression: Physical at -1.85, Emotional at -0.7, Mental at -1.775, Relational at -1.55, Spiritual at -1.662. All five negative, Physical and Mental hit hardest.

The engine computes: capacity pattern Vacant, domain pattern Nullified, formation Contracted. Severe coherence. 23 traps, 7 basins including Bond Rupture, Absent Embodiment, Mental Haze, Merged Confusion, System Collapse.

The structural fingerprint of complex trauma is in that word: Vacant. Not Total Shutdown, which is what depression gets. Vacant means something is still receiving — Open is centered at 0.3, still taking in input — while everything downstream has failed. Focus can’t organize what comes in. Bond can’t connect it to others. Voice can’t express it outward. The system is permeable but paralyzed. You’re aware of what’s happening to you, and you can’t do anything about it.

The trap list shows the multi-domain cascade characteristic of complex trauma: Codependence, Emotional Flooding, Cognitive Paralysis, Somatic Freeze, Spiritual Isolation. All five domains activating simultaneously but through different mechanisms than depression. The Emotional Flooding and Emotional Explosion traps — absent from the MDD profile — appear here because Open is still receiving. Depression’s shutdown protects from further input. Complex trauma’s vacancy leaves the gates open while disabling every pathway behind them.

BPD: The Spiraling Spike

Emotional instability is the wildest portrait of the five. The bpd_emotional persona has Open at 1.5 (over), Focus at -1.5 (under), Bond at 2.0 (over), Voice at 1.6 (over). Three capacities over, one under. Domain values show a massive Emotional spike to 2.4, Relational at 0.962, Physical at 0.263, Mental and Spiritual both at -0.437.

The engine names it: capacity pattern Spiraling, domain pattern Saturated, formation Peaking. Burdened coherence. 9 traps — including Codependence, Emotional Flooding, Vocal Compulsion, Boundary Collapse, Emotional Explosion — and 11 basins, the highest count of any cluster. Those basins include Receptive Inundation, Identity Fusion, Output Escalation, Emotional Saturation, Relational Engulfment, Discharge Loop.

Three capacities over means the system is generating enormous output — receiving massively, connecting intensely, expressing loudly — but Focus at -1.5 means none of it is being organized. The Emotional domain at 2.4 dwarfs everything else. A system flooded with emotional intensity that has no attentional mechanism to regulate it.

11 basins — compared to depression’s 15, anxiety’s 3, narcissism’s 2, and complex trauma’s 7. Having 11 means the system isn’t stuck in one place (like anxiety’s Vigilance Lock) or uniformly collapsed (like depression’s System Collapse). It’s cycling between attractor states rapidly — what clinicians observe as the affective shifts and relational instability characteristic of BPD. The engine names this Spiraling because the system spirals between high-activation states without settling.

What the Portraits Share

None of these five profiles are centered. That’s definitional — clinical presentations exist because the structural system has moved away from its balanced configuration. But the portraits share more specific features.

Every cluster shows multi-domain activation. Even anxiety, the most focused of the five, produces a domain spike (Mental at 1.475) against near-zero values elsewhere. Depression and complex trauma show all five domains negative. BPD shows the widest spread, from -0.437 to 2.4. No single-domain clinical presentations appear in this set — diagnostic categories are always more structurally complex than their primary feature suggests.

Coherence correlates with clinical severity. MDD at 13 (Severe), cPTSD at 20 (Severe), BPD at 36 (Burdened), NPD at 52 (Strained), GAD at 63 (Strained). The presentations clinicians rate as most globally impairing produce the lowest coherence. The engine arrives at a severity ranking that mirrors clinical consensus without any severity metric built into the computation.

All five activate traps. Counts range from 5 (NPD) to 24 (MDD). No clinical portrait runs clean.

What the Portraits Separate

Direction of activation is the sharpest separator. MDD and cPTSD pull the system under — capacities suppressed, domains negative, system collapsed. NPD and BPD push it over — capacities elevated, domains active, system surging. GAD sits between: one capacity over, one under, two centered. Total Shutdown and Vacant are under-patterns. Fanatical and Spiraling are over-patterns. Fixating combines both.

The domain signatures are equally distinct. Depression flattens everything (no domain above -1.737). Anxiety isolates a single spike (Mental at 1.475, everything else near zero). Narcissism elevates four domains equally (0.925, with -0.475 on Relational). Complex trauma suppresses unevenly (-0.7 to -1.85). BPD creates maximum spread (-0.437 to 2.4). Five domain geometries, five clinical realities.

The dynamics signatures separate these portraits into distinct classes: depression is static — System Collapse, staying there. Anxiety is locked — Vigilance Lock, can’t exit. BPD is cycling — 11 basins, moving between attractor states without resolution. NPD is escalating — Output Escalation and Discharge Loop, one-directional intensification. Complex trauma is fragmenting — 7 basins pulling in contradictory directions, a structural picture of dissociative dynamics that doesn’t require the word “dissociation” to be visible.

These five portraits don’t prove the Icosa engine is a diagnostic tool. It isn’t one. What they show is that structural geometry and clinical reality share a substrate. Depression produces Total Shutdown, Nullified, Contracted. Complex trauma gets Vacant instead of Total Shutdown — the paradox of open receptivity with downstream paralysis. Emotional instability gets Spiraling, Saturated, Peaking and the highest basin count of any cluster. The engine doesn’t know what it’s looking at. The geometry maps onto what clinicians observe because the structural displacements that produce clinical presentations are real geometric events. The convergence isn’t programmed into the engine. It’s in the structure of the thing the engine is measuring.