Interoceptive psychopathology

The clinical face of interoception: the claim, made as field consensus in Khalsa et al. (2018), that dysfunction of interoception is “an important component of different mental health conditions” — and that it does not respect diagnostic categories. This page holds the nosology (which disorders, which dysfunctions, and the cause-or-consequence question); the mechanism (hierarchical Bayesian accounts, allostatic self-efficacy, precision failures) is on its sibling page computational-psychiatry.

Transdiagnostic, not category-specific

The roadmap’s Table 3 lists interoceptive symptoms and signs across a wide span of conditions — panic disorder (palpitations, dyspnea, dizziness misread; elevated HR, exaggerated startle), depression (appetite and fatigue disturbance), eating disorders (hunger insensitivity, caloric-anticipation abnormalities), somatic symptom disorders (symptom report exceeding medical findings), substance use (craving/withdrawal interoception), PTSD (autonomic hypervigilance, depersonalization), GAD, depersonalization/derealization disorder (physiological hyporeactivity, detachment from the body), and autism (sensory hyper/hyposensitivity). The point of the list is that no single feature is diagnostic; the same broad disturbance surfaces differently across conditions.

Because of that, the paper argues for a dimensional, transdiagnostic approach — the Research Domain Criteria (RDoC) — over DSM categories: several interoceptive processes “might not be readily identified at the symptom report level relied on by clinicians,” so a mechanistic, cross-cutting probe can reveal dysfunction the diagnostic manual never coded. This is interoception offered as an RDoC construct: a knob that is turned differently in different illnesses.

Five candidate dysfunctions

The roadmap proposes that interoceptive investigation in patients might reveal any of five distinguishable failures — a useful checklist because it maps onto the wiki’s taxonomy rather than onto diagnoses:

1. Attentional bias — e.g. hypervigilance to bodily signals.
2. Distorted physiological sensitivity — blunted or heightened magnitude estimation under perturbation.
3. Cognitive bias — catastrophizing an anticipated bodily stimulus (the panic engine; close to anxiety-sensitivity).
4. Abnormal sensibility — a tendency to label one’s experiences in a particular way.
5. Impaired insight — poor confidence–accuracy correspondence on a task.

The wiki already holds worked examples of several. anxiety-sensitivity is #3 in nearly pure form — the belief that arousal is harmful, dissociable from trait anxiety and from accuracy. schema-guided-symptom-perception is a mechanism for #2 (reporting a racing heart that is not racing). The attachment-anxious “high noticing, low not-worrying” profile (oldroyd-2019-attachment-interoception) is #1 and #4 together. The roadmap’s contribution is to file them under one heading and give them a common vocabulary.

Cause or consequence — the unanswered question

The roadmap flags, without resolving, the question the wiki keeps hitting: is interoceptive dysfunction a cause of psychopathology, a consequence of it, or a correlated third thing? “Determining whether interoceptive processes are a cause or consequence of developmental psychopathology… will be an important area for future research.” This is the same gap the clinical-training material runs into — the deficit-to-treatment inference (“patients have less X, therefore raise X”) that the anorexia and depression cases show can fail, because a cross-sectional deficit does not say whether it is the illness, a defence against it, or a byproduct. The roadmap recommends developmental and longitudinal samples (younger and older cohorts, premorbid tracking) as the way to break the tie — which is exactly what none of the wiki’s clinical sources have.

The biomarker aspiration, and its current emptiness

If interoceptive dysfunction is real and mechanistic, objective interoceptive measures could serve as biological indicators of disease. The roadmap wants this and admits the cupboard is bare: “there is currently limited evidence for interoceptive predictors of diagnostic, prognostic, or treatment status.” Its bet is that the sensitive measures will be perturbation probes that engage metacognitive beliefs — an interoceptive “cardiac stress test” that stresses the system under ecologically valid conditions rather than reading it at rest. Note the tension with the wiki’s heartbeat-task material: the roadmap uses the resting cardiac tasks as accuracy measures without caveat, while betting the clinically useful measures are perturbation-based — quietly conceding the resting tasks may not be where the biomarkers are.

The applied debate this sharpens

Everything on this page feeds is-more-interoceptive-awareness-better. The transdiagnostic frame makes the debate unavoidable: if interoceptive dysfunction takes opposite forms in different conditions (hypervigilance in panic, hyporeactivity in depersonalization, avoidance in anorexia), then no single intervention direction — “raise awareness” or “lower it” — can be right across the board. Profile, not diagnosis, and certainly not a single composite score, has to guide treatment. See interoceptive-training-clinical, where that argument is worked through case by case.