{ "model": { "rank": 3381, "code": "thing-q131749", "model_id": "vr.tr.anorexia-nervosa", "name": "anorexia nervosa", "purpose": "Let an agent explain anorexia nervosa in general terms from clinical guidelines, describe diagnostic criteria, complications and treatment approaches, distinguish related presentations, and route anyone affected to emergency care or professional help first.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.STA", "industry": "", "version": "", "url": "/models/thing/q131749/", "tier": 2, "score": 86, "payload": { "layer": "wikidata", "aliases": [ "anorexia athletica", "anorexia scholastica", "pregorexia", "atypical anorexia nervosa", "male anorexia" ], "aliasCount": 5, "merged": 5, "knownIn": 86, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q131749", "url": "https://www.wikidata.org/wiki/Q131749", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T00:11:44Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 3, "engine": "claude" }, "metaModel": { "id": "THING-Q131749", "registryId": "vr.tr.anorexia-nervosa", "name": "anorexia nervosa", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.STA" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q131749/", "model": { "registry_id": "vr.tr.anorexia-nervosa", "name": "anorexia nervosa", "purpose": "Let an agent explain anorexia nervosa in general terms from clinical guidelines, describe diagnostic criteria, complications and treatment approaches, distinguish related presentations, and route anyone affected to emergency care or professional help first.", "definition": "An eating disorder characterised by restriction of food intake leading to low body weight, intense fear of gaining weight and a distorted perception of body weight or shape, with subtypes and related presentations such as atypical anorexia nervosa at normal weight, and terms such as anorexia athletica in sport and pregorexia in pregnancy used informally; anorexia nervosa affects people of all genders, has serious medical complications and one of the highest mortality rates of psychiatric conditions, and is treated with nutritional rehabilitation, psychotherapy and medical care.", "what_it_is_for": "Not applicable; a medical condition.", "affordances": [ "explain the condition in general terms", "relay guidelines and treatment approaches", "distinguish related presentations", "route to emergency and professional help" ], "distinguishing_features": [ "Restriction and low weight", "Body image distortion", "Medical complications", "Multidisciplinary treatment" ], "appearance": "Not a visible object; a clinical diagnosis.", "visual_identification": [ "Restrictive eating disorder with fear of weight gain", "Atypical, athletic and pregnancy-related presentations", "Bulimia nervosa and ARFID are different eating disorders; the word anorexia alone means loss of appetite" ], "physical_properties": [ { "quantity": "lifetime prevalence in women", "typical_range": "about 1-4", "unit": "percent", "note": "estimates vary by study" }, { "quantity": "standardised mortality ratio", "typical_range": "about 5-6", "unit": "ratio", "note": "meta-analyses" } ], "families_and_kinds": [ "restricting and binge-purge subtypes", "atypical anorexia nervosa", "presentations in athletes, pregnancy and men, using informal terms", "childhood and adolescent onset", "severe and enduring anorexia nervosa" ], "related_models": [ { "relation": "is a kind of", "target": "eating disorder", "why": "in registry terms" }, { "relation": "is diagnosed by", "target": "DSM-5 and ICD-11 criteria", "why": "the classifications" }, { "relation": "is treated with", "target": "family-based treatment", "why": "among other approaches" }, { "relation": "is contrasted with", "target": "bulimia nervosa", "why": "another eating disorder" } ], "identifiers": [ { "scheme": "ICD-11", "value_or_pattern": "6B80", "note": "" }, { "scheme": "MeSH", "value_or_pattern": "D000856", "note": "" } ], "standards_and_regulation": [ "NICE and APA eating disorder guidelines", "DSM-5 and ICD-11 criteria", "Mental health law on involuntary treatment in severe cases" ], "failure_modes_and_hazards": [ "Medical emergencies such as refeeding syndrome and cardiac events", "Agents giving weight or diet advice to affected users", "Pro-anorexia content", "Stereotypes about who is affected" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "help", "name": "Help", "description": "Getting help first.", "rationale": "Safety.", "layers": [ { "id": "emergency", "name": "Emergency", "description": "Emergency signs.", "findings": [ { "id": "emergency-finding", "name": "Emergency", "description": "Emergency.", "questions": [ { "text": "What signs indicate a medical emergency, and where should someone seek urgent help?", "kind": "action" }, { "text": "Is the user or someone near them at immediate risk, which needs emergency services?", "kind": "boundary" } ] } ] }, { "id": "support", "name": "Support", "description": "Professional help.", "findings": [ { "id": "support-finding", "name": "Support", "description": "Support.", "questions": [ { "text": "How can someone find eating disorder services and helplines?", "kind": "action" }, { "text": "Is the user asking for personal diet or weight advice, which the model does not give?", "kind": "boundary" } ] } ] } ] }, { "id": "understand", "name": "Understand", "description": "The condition.", "rationale": "Clinical.", "layers": [ { "id": "definition", "name": "Definition", "description": "Criteria and presentations.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "How is anorexia nervosa defined, and how do subtypes and atypical presentations differ?", "kind": "definition" }, { "text": "Is the question about anorexia nervosa or another eating disorder?", "kind": "boundary" } ] } ] }, { "id": "causes", "name": "Causes", "description": "Causes and risk.", "findings": [ { "id": "causes-finding", "name": "Causes", "description": "Causes.", "questions": [ { "text": "What do researchers say about causes and risk factors, with findings attributed?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "treat", "name": "Treat", "description": "Treatment.", "rationale": "Clinical.", "layers": [ { "id": "approaches", "name": "Approaches", "description": "Approaches.", "findings": [ { "id": "approaches-finding", "name": "Approaches", "description": "Approaches.", "questions": [ { "text": "What treatments do guidelines recommend, in general terms?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "recovery", "name": "Recovery", "description": "Recovery and outcomes.", "findings": [ { "id": "recovery-finding", "name": "Recovery", "description": "Recovery.", "questions": [ { "text": "What do studies say about recovery and long-term outcomes?", "kind": "provenance" }, { "text": "Which entry fits eating disorder recovery?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Society and history.", "rationale": "Attribution.", "layers": [ { "id": "society", "name": "Society", "description": "Society and media.", "findings": [ { "id": "society-finding", "name": "Society", "description": "Society.", "questions": [ { "text": "How do culture and media relate to eating disorders, as researchers describe?", "kind": "provenance" }, { "text": "Is the presentation free of harmful content?", "kind": "boundary" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How has anorexia nervosa been understood historically?", "kind": "provenance" }, { "text": "Which entry fits the history of psychiatry?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should atypical anorexia nervosa be a separate entry?", "How should guidelines be linked?", "The registry entry has merged aliases using informal non-diagnostic terms; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a anorexia nervosa, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain anorexia nervosa in general terms from clinical guidelines, describe diagnostic criteria, complications and treatment approaches, distinguish related presentations, and route anyone affected to emergency care or professional help first.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: anorexia athletica, anorexia scholastica, pregorexia, atypical anorexia nervosa, male anorexia.", "5 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 86 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a anorexia nervosa, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "anorexia athletica", "anorexia scholastica", "pregorexia", "atypical anorexia nervosa", "male anorexia" ] } ], "standing": "Described in 86 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 5 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one anorexia nervosa from another, and a anorexia nervosa from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a anorexia nervosa sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a anorexia nervosa from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a anorexia nervosa passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a anorexia nervosa between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a anorexia nervosa, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a anorexia nervosa is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What anorexia nervosa is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of anorexia nervosa are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is anorexia nervosa operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of anorexia nervosa and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of anorexia nervosa?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as anorexia nervosa?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a anorexia nervosa came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a anorexia nervosa and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a anorexia nervosa is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a anorexia nervosa, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a anorexia nervosa, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a anorexia nervosa is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }