{ "model": { "rank": 4056, "code": "thing-q10686316", "model_id": "vr.tr.vertigo", "name": "vertigo", "purpose": "Let an agent explain vertigo and its classifications, relay causes, assessment and general management from ENT and neurology sources, describe the forms the registry aliases name, and distinguish vertigo from lightheadedness, imbalance and fear of heights, routing emergencies first and symptoms to clinicians.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q10686316/", "tier": 2, "score": 79, "payload": { "layer": "wikidata", "aliases": [ "subjective vertigo", "objective vertigo", "central nervous system origin vertigo", "peripheral vertigo", "rotatory vertigo", "alternobaric vertigo", "benign paroxysmal vertigo of childhood", "lightheadedness", "vertiginous epilepsy", "Zamia staggers" ], "aliasCount": 10, "merged": 10, "knownIn": 79, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q10686316", "url": "https://www.wikidata.org/wiki/Q10686316", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T15:46:36Z", "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": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q10686316", "registryId": "vr.tr.vertigo", "name": "vertigo", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.KNW" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q10686316/", "model": { "registry_id": "vr.tr.vertigo", "name": "vertigo", "purpose": "Let an agent explain vertigo and its classifications, relay causes, assessment and general management from ENT and neurology sources, describe the forms the registry aliases name, and distinguish vertigo from lightheadedness, imbalance and fear of heights, routing emergencies first and symptoms to clinicians.", "definition": "A sensation of movement, usually spinning, when there is no actual movement, a symptom rather than a disease, classified as peripheral vertigo from inner ear causes such as benign paroxysmal positional vertigo, vestibular neuritis and Meniere disease, central vertigo from brain causes such as stroke or migraine, subjective or objective according to whether the self or surroundings seem to move, rotatory vertigo, and alternobaric vertigo from unequal ear pressure in divers and pilots. Sudden vertigo with weakness, speech or vision problems needs emergency care. The model routes people to clinicians.", "what_it_is_for": "Not applicable; a symptom.", "affordances": [ "explain the symptom", "relay causes and assessment", "route emergencies and care", "distinguish related symptoms" ], "distinguishing_features": [ "Illusion of motion", "Symptom not disease", "Peripheral or central", "Emergency red flags" ], "appearance": "Not a visible object; a sensation, sometimes with nystagmus.", "visual_identification": [ "False sensation of movement", "Peripheral, central, subjective, objective, rotatory and alternobaric vertigo", "Lightheadedness is faintness; disequilibrium is imbalance; acrophobia is fear of heights" ], "physical_properties": [ { "quantity": "commonest cause", "typical_range": "benign paroxysmal positional vertigo", "unit": "note", "note": "" }, { "quantity": "lifetime prevalence of vertigo", "typical_range": "about 7", "unit": "percent", "note": "estimates" }, { "quantity": "HINTS exam", "typical_range": "bedside test to separate central from peripheral", "unit": "note", "note": "clinicians" } ], "families_and_kinds": [ "peripheral vertigo such as BPPV, vestibular neuritis and Meniere disease", "central vertigo such as stroke and vestibular migraine", "subjective and objective vertigo", "rotatory vertigo", "alternobaric vertigo in diving and flying" ], "related_models": [ { "relation": "is a kind of", "target": "dizziness", "why": "in registry terms" }, { "relation": "is a kind of", "target": "clinical sign", "why": "in registry terms" }, { "relation": "is often caused by", "target": "benign paroxysmal positional vertigo", "why": "" }, { "relation": "is contrasted with", "target": "presyncope", "why": "lightheadedness" } ], "identifiers": [ { "scheme": "ICD-10", "value_or_pattern": "R42", "note": "dizziness and giddiness" }, { "scheme": "MeSH", "value_or_pattern": "D014717", "note": "Vertigo" } ], "standards_and_regulation": [ "Clinical guidelines for BPPV and acute vestibular syndrome", "Diving and aviation medical standards" ], "failure_modes_and_hazards": [ "Missing stroke presenting as vertigo", "Agents giving personal medical advice", "Falls during attacks" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What vertigo is.", "rationale": "Clinical.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is vertigo, and how does it differ from lightheadedness, imbalance and fear of heights?", "kind": "definition" }, { "text": "Does the user have sudden vertigo with weakness, speech, vision or walking problems, which needs emergency services now?", "kind": "boundary" } ] } ] }, { "id": "kinds", "name": "Kinds", "description": "Kinds.", "findings": [ { "id": "kinds-finding", "name": "Kinds", "description": "Kinds.", "questions": [ { "text": "What are peripheral, central, subjective, objective, rotatory and alternobaric vertigo?", "kind": "definition" }, { "text": "Which entry fits the specific kind?", "kind": "action" } ] } ] } ] }, { "id": "causes", "name": "Causes", "description": "Causes.", "rationale": "Clinical.", "layers": [ { "id": "ear", "name": "Ear", "description": "Inner ear causes.", "findings": [ { "id": "ear-finding", "name": "Ear", "description": "Ear.", "questions": [ { "text": "How do BPPV, vestibular neuritis and Meniere disease cause vertigo?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "brain", "name": "Brain", "description": "Central causes.", "findings": [ { "id": "brain-finding", "name": "Brain", "description": "Brain.", "questions": [ { "text": "How do stroke, migraine and other brain conditions cause vertigo?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "care", "name": "Care", "description": "Assessment and management.", "rationale": "Clinical.", "layers": [ { "id": "assessment", "name": "Assessment", "description": "Assessment.", "findings": [ { "id": "assessment-finding", "name": "Assessment", "description": "Assessment.", "questions": [ { "text": "How do clinicians assess vertigo, in general terms?", "kind": "provenance" }, { "text": "Which entry fits vestibular testing?", "kind": "action" } ] } ] }, { "id": "management", "name": "Management", "description": "Management.", "findings": [ { "id": "management-finding", "name": "Management", "description": "Management.", "questions": [ { "text": "What general treatments exist, such as repositioning manoeuvres and vestibular rehabilitation, done under clinical guidance?", "kind": "provenance" }, { "text": "Which entry fits vestibular rehabilitation?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Diving, flying and history.", "rationale": "Context.", "layers": [ { "id": "pressure", "name": "Pressure", "description": "Alternobaric vertigo.", "findings": [ { "id": "pressure-finding", "name": "Pressure", "description": "Pressure.", "questions": [ { "text": "Why does alternobaric vertigo occur in divers and pilots, and what do training bodies advise?", "kind": "provenance" }, { "text": "Which entry fits diving medicine?", "kind": "action" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did understanding of vestibular disorders develop?", "kind": "provenance" }, { "text": "Which entry fits the history of otology?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should BPPV and alternobaric vertigo be separate primary entries?", "How should clinical sources be linked?", "The registry entry has merged aliases naming classifications and causes; 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": "discipline or field of knowledge", "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 vertigo, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain vertigo and its classifications, relay causes, assessment and general management from ENT and neurology sources, describe the forms the registry aliases name, and distinguish vertigo from lightheadedness, imbalance and fear of heights, routing emergencies first and symptoms to clinicians.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: subjective vertigo, objective vertigo, central nervous system origin vertigo, peripheral vertigo, rotatory vertigo, alternobaric vertigo, benign paroxysmal vertigo of childhood, lightheadedness, vertiginous epilepsy, Zamia staggers.", "10 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 79 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 vertigo, and on what evidence are they told apart?" ], "whatItIsMadeOf": "content that has to be carried by something else", "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": [ "read it and act on what it says" ], "howItIsRecognised": [], "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": [ "subjective vertigo", "objective vertigo", "central nervous system origin vertigo", "peripheral vertigo", "rotatory vertigo", "alternobaric vertigo", "benign paroxysmal vertigo of childhood", "lightheadedness", "vertiginous epilepsy", "Zamia staggers" ] } ], "standing": "Described in 79 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 10 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 vertigo from another, and a vertigo 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 vertigo, 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 vertigo, 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 vertigo 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 vertigo, 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 vertigo, 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 vertigo 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 vertigo 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 vertigo, 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 vertigo, 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 vertigo 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 vertigo from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a vertigo, 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 vertigo, 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 vertigo 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 vertigo 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 vertigo between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a vertigo, 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 vertigo, 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 vertigo 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 vertigo, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a vertigo 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 vertigo, 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 vertigo, 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 vertigo is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "content-and-access", "name": "Content, encoding and access", "description": "What a vertigo says, how it is encoded and who may read it.", "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.", "layers": [ { "id": "content-and-encoding", "name": "Content and encoding", "description": "The content itself, its format and its language.", "findings": [ { "id": "content-and-format", "name": "Content, format and language", "description": "What a vertigo contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a vertigo, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "content-and-format-q02", "text": "Who or what asserted this about the content of a vertigo, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "content-and-format-q03", "text": "What may an agent decide or do once the content of a vertigo is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "access-and-rights", "name": "Access, rights and retention", "description": "Who may read, copy or change it, and for how long it is kept.", "findings": [ { "id": "access-rules", "name": "Access rules and retention", "description": "The permissions attached to a vertigo and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a vertigo, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "access-rules-q02", "text": "Who or what asserted this about access to a vertigo, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "access-rules-q03", "text": "What may an agent decide or do once access to a vertigo is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "subject-and-method", "name": "Subject matter and method", "description": "What vertigo studies and how it establishes anything.", "rationale": "A field is identified by its questions and its methods, and those are what distinguish it from the fields next to it.", "layers": [ { "id": "subject", "name": "Subject matter", "description": "The questions it takes as its own.", "findings": [ { "id": "subject-record", "name": "Questions and objects of study", "description": "What it is about, stated so a neighbouring field can be told apart.", "questions": [ { "id": "subject-record-q01", "text": "What questions and objects does vertigo take as its own?", "kind": "definition" }, { "id": "subject-record-q02", "text": "Which questions does it share with a neighbouring field, and who claims them?", "kind": "boundary" } ] } ] }, { "id": "method", "name": "Method and evidence", "description": "How claims are established and what counts as evidence.", "findings": [ { "id": "method-record", "name": "Methods and standards of evidence", "description": "The methods used and what they are taken to establish.", "questions": [ { "id": "method-record-q01", "text": "By what methods does vertigo establish claims, and what counts as sufficient evidence?", "kind": "provenance" }, { "id": "method-record-q02", "text": "What kind of claim can this field not settle, and where should an agent look instead?", "kind": "action" } ] } ] } ] }, { "id": "institutions-and-classification", "name": "Institutions and classification", "description": "Where vertigo is practised and how catalogues place it.", "rationale": "The institutional footprint is the evidence that a field exists as a field rather than as a topic.", "layers": [ { "id": "institutions", "name": "Institutional markers", "description": "Societies, journals, degrees and departments.", "findings": [ { "id": "institution-record", "name": "Bodies and venues", "description": "Where the field organises itself.", "questions": [ { "id": "institution-record-q01", "text": "Which societies, journals or degrees mark vertigo as an established field?", "kind": "provenance" }, { "id": "institution-record-q02", "text": "What would show that it is emerging or dissolving rather than established?", "kind": "boundary" } ] } ] }, { "id": "classification", "name": "Classification schemes", "description": "Where library and research classifications put it.", "findings": [ { "id": "classification-record", "name": "Codes and their disagreements", "description": "The classification codes that place it, and where they differ.", "questions": [ { "id": "classification-record-q01", "text": "Which classification schemes place vertigo, under what codes?", "kind": "definition" }, { "id": "classification-record-q02", "text": "Where do those schemes disagree about its scope?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a vertigo 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 vertigo and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a vertigo, 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 vertigo, 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 vertigo 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 vertigo is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a vertigo, 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 vertigo, 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 vertigo is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }