{ "model": { "rank": 6416, "code": "thing-q12821248", "model_id": "vr.tr.dendrite", "name": "dendrite", "purpose": "Enable an AI agent to recognise a neuronal dendrite, assess its observed structure and functional condition, and judge which observations or interventions are justified, provisionally interpreting the undefined registry term in its neuronal sense.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q12821248/", "tier": 2, "score": 60, "payload": { "layer": "wikidata", "aliases": [ "proximal dendrite", "dendritic branch", "CA3 pyramidal cell dendrite", "basal dendrite", "sensory dendrite", "apical dendrite", "primary dendrite", "distal dendrite", "Basal dendrite", "dendrite of olfactory receptor cell", "dendrite of bipolar cell of retina", "dendrite of motor neuron", "dendrite of interneuron", "apical proximal dendrite", "apical distal dendrite" ], "aliasCount": 15, "merged": 15, "knownIn": 60, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q12821248", "url": "https://www.wikidata.org/wiki/Q12821248", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:22:27Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.0636948, "turns": 5, "seconds": 165.5, "error": null }, "codex": { "seconds": 89, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07c3d-3a10-7d80-97ad-dc1a2ff0b457\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: dendrite\nRegistry id: vr.tr.dendrite\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy" } } }, "metaModel": { "id": "THING-Q12821248", "registryId": "vr.tr.dendrite", "name": "dendrite", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q12821248/", "model": { "registry_id": "vr.tr.dendrite", "name": "dendrite", "purpose": "Enable an AI agent to recognise a neuronal dendrite, assess its observed structure and functional condition, and judge which observations or interventions are justified, provisionally interpreting the undefined registry term in its neuronal sense.", "definition": "A dendrite (also dendron) is a typically tapering, branched cytoplasmic process of a neuron that receives synaptic, and in some cells sensory, input, spatially and temporally integrates the resulting local potentials, and conducts them toward the soma, with some dendrites also supporting regenerative spikes, back-propagating action potentials, and retrograde transmitter release.", "scope_statement": "This model owns an individual neuronal dendrite and its attributable branches, surface specialisations, local inputs and observed condition; the interpretation remains provisional until the registry distinguishes neuronal dendrites from crystalline or electrochemical dendrites.", "in_scope": [ "Identification and boundaries of an individual dendrite within its parent neuron", "Branch geometry, continuity and membership in the neuron's dendritic arbor", "Dendritic spines, shaft specialisations and locally attributed synaptic contacts", "Spatially and temporally resolved electrical, biochemical and structural observations", "Dendrite-specific access, intervention constraints and observed responses" ], "out_of_scope": [ "Crystalline, mineral and electrochemical dendrites", "Whole-neuron identity, physiology and viability except as context for this dendrite", "Axons, axon terminals and their propagation or output machinery", "Complete synapses, including presynaptic machinery, beyond their interface with this dendrite", "Neural circuit computation, organism behaviour and clinical diagnosis", "General laboratory equipment and experimental protocols" ], "distinguishing_features": [ "Establish neuronal context and traced continuity with a parent neuron before classifying a branching structure as a neuronal dendrite.", "Distinguish dendrite from axon using convergent evidence from cellular origin, morphology, molecular labelling and neuron type; branching shape alone is insufficient.", "Distinguish the dendritic shaft and its branches from the soma by recording the anatomical boundary used and whether that boundary is visible.", "Distinguish an individual dendrite from the complete dendritic arbor by identifying its root and the rule for assigning downstream branches.", "Distinguish spines or other surface protrusions from shaft branches using their connection and morphology; a protrusion alone does not establish a synapse." ], "characteristics": [ { "name": "Dendritic identity confidence", "kind": "state", "unit_or_values": "supported | provisional | unresolved | contradicted, with supporting observations", "why_it_matters": "Prevents a branching profile or isolated marker from being treated as decisive identification." }, { "name": "Parent neuron and root attachment", "kind": "relation", "unit_or_values": "Referenced neuron and observed attachment location; unknown when untraced", "why_it_matters": "Anchors identity and establishes which arbor the dendrite belongs to." }, { "name": "Dendrite class", "kind": "category", "unit_or_values": "Apical | basal | other context-defined class | unclassified | not applicable", "why_it_matters": "Supports comparison within an appropriate neuron type without imposing a classification on every neuron." }, { "name": "Branch connectivity", "kind": "relation", "unit_or_values": "Parent and child segments, branch points and terminal status", "why_it_matters": "Separates genuine branching from crossings, occlusion and incomplete reconstruction." }, { "name": "Reconstructed path length", "kind": "measurement", "unit_or_values": "µm, with endpoints and observed coverage", "why_it_matters": "Describes spatial extent without treating an incomplete trace as the complete dendrite." }, { "name": "Shaft diameter profile", "kind": "measurement", "unit_or_values": "µm by position, with measurement method and uncertainty", "why_it_matters": "Makes tapering, focal swelling and comparisons between locations assessable." }, { "name": "Spine density", "kind": "measurement", "unit_or_values": "Observed spines per µm of evaluable shaft, with detection criteria", "why_it_matters": "Allows local structural comparison while preserving the distinction between undetected and absent spines." }, { "name": "Attributed synaptic contacts", "kind": "relation", "unit_or_values": "Contact location, partner if known, shaft or spine association, and evidence strength", "why_it_matters": "Separates established contacts from proximity and supports local input analysis." }, { "name": "Local membrane potential", "kind": "measurement", "unit_or_values": "mV by location and time, when directly measured or explicitly estimated", "why_it_matters": "Connects electrical state to the particular region sampled." }, { "name": "Local calcium readout", "kind": "measurement", "unit_or_values": "Calibrated concentration or explicitly identified reporter units such as ΔF/F₀", "why_it_matters": "Preserves the distinction between an optical signal and a calibrated biochemical measurement." }, { "name": "Structural condition", "kind": "state", "unit_or_values": "Observed continuity, swelling, beading, fragmentation or remodelling, with time and confidence", "why_it_matters": "Records visible condition without automatically inferring viability or a cause." }, { "name": "Observation context", "kind": "category", "unit_or_values": "Living or fixed preparation, species, neuron type, developmental stage and acquisition method where known", "why_it_matters": "Determines which comparisons and functional interpretations are defensible." } ], "affordances": [ "Trace the dendrite from its root through visible branches and flag ambiguous continuity.", "Measure shaft geometry and spine distribution within explicitly evaluable regions.", "Associate local contacts and recorded signals with particular branches, shafts or spines.", "Compare repeated observations for supported structural or functional changes.", "Assess whether a proposed local recording, stimulation or labelling intervention is accessible and justified by the preparation and evidence.", "Record intervention location, exposure and response while distinguishing dendritic effects from effects on the parent neuron or neighbouring structures." ] }, "sources": [ { "id": "wiki-dendrite", "title": "Dendrite - Wikipedia (Wikimedia Foundation)", "url": "https://en.wikipedia.org/wiki/Dendrite", "what_it_supports": "Specialist definition of the neuronal process; MeSH D003712, FMA 67314 and Wikidata Q12821248; apical/basal and arbor-pattern kinds; axon contrast; synaptic load figures; electrical properties including passive spread, back-propagation and dendritic spikes; dendritic transmitter release; clinical arbor and spine changes; insect unipolar versus vertebrate trees.", "url_status": "live" }, { "id": "wiki-pyramidal-cell", "title": "Pyramidal cell - Wikipedia (Wikimedia Foundation)", "url": "https://en.wikipedia.org/wiki/Pyramidal_cell", "what_it_supports": "Working split into one apical dendrite versus several basal dendrites; typical pyramidal dendrite shaft diameter from about 0.5 µm to several micrometres.", "url_status": "live" }, { "id": "nrn-spruston", "title": "Pyramidal neurons: dendritic structure and synaptic integration - Nature Reviews Neuroscience (Springer Nature)", "url": "https://www.nature.com/articles/nrn2286", "what_it_supports": "That pyramidal cells are defined by basal and apical trees including an apical tuft; domain-specific synaptic input; spines as the usual excitatory contact; dendritic voltage-gated channels, back-propagating spikes and dendritically initiated spikes.", "url_status": "live" }, { "id": "wiki-dendrite-crystal", "title": "Dendrite (crystal) - Wikipedia (Wikimedia Foundation)", "url": "https://en.wikipedia.org/wiki/Dendrite_(crystal)", "what_it_supports": "Neighbour sense: a multi-branching crystal habit (snow, frost, minerals, metals), not a neuronal process.", "url_status": "live" } ], "structure": { "bundles": [ { "id": "dendritic-identity-and-boundaries", "name": "Dendritic identity and boundaries", "description": "Establish what neuronal structure is being modelled and where the individual dendrite begins and ends.", "rationale": "An undefined registry label and branching morphology cannot by themselves establish neuronal dendritic identity.", "layers": [ { "id": "neuronal-attribution", "name": "Neuronal attribution", "description": "Connect the candidate dendrite to a neuron and evaluate competing identifications.", "findings": [ { "id": "evidence-for-dendritic-identity", "name": "Evidence for dendritic identity", "description": "Record the observations supporting dendritic identity and any unresolved axonal or non-neuronal interpretation.", "questions": [ { "text": "What evidence identifies this structure as a neuronal dendrite rather than an axon, glial process or non-neuronal branching structure?", "kind": "definition", "id": "evidence-for-dendritic-identity-q01" }, { "text": "Which images, traces, labels or other observations support attribution to the stated parent neuron?", "kind": "provenance", "id": "evidence-for-dendritic-identity-q02" } ] } ] }, { "id": "individual-dendrite-delimitation", "name": "Individual dendrite delimitation", "description": "Specify the root, included branches and observational limits of this dendrite.", "findings": [ { "id": "root-and-membership-rule", "name": "Root and membership rule", "description": "Make the boundary between soma, individual dendrite and complete arbor explicit.", "questions": [ { "text": "Where is this dendrite's root, and what rule assigns downstream branches to it?", "kind": "boundary", "id": "root-and-membership-rule-q01" }, { "text": "Which apparent endpoints are observed tips, and which are cuts, occlusions or exits from the imaging volume?", "kind": "boundary", "id": "root-and-membership-rule-q02" } ] } ] } ] }, { "id": "branch-architecture", "name": "Branch architecture", "description": "Describe the dendrite's connected geometry at a resolution supported by observation.", "rationale": "Dendritic topology and local shaft dimensions are needed to locate inputs, compare changes and target interventions.", "layers": [ { "id": "branch-connectivity", "name": "Branch connectivity", "description": "Resolve branch points, segment relationships and tracing ambiguity.", "findings": [ { "id": "supported-branch-topology", "name": "Supported branch topology", "description": "Record which segment connections are demonstrated and which remain uncertain.", "questions": [ { "text": "Which segments connect at each branch point, and how were crossings distinguished from connections?", "kind": "measurement", "id": "supported-branch-topology-q01" }, { "text": "Which connections cannot be resolved at the available spatial resolution?", "kind": "boundary", "id": "supported-branch-topology-q02" } ] } ] }, { "id": "shaft-geometry", "name": "Shaft geometry", "description": "Measure spatial extent and local calibre along identified paths.", "findings": [ { "id": "length-and-calibre-profile", "name": "Length and calibre profile", "description": "Record path lengths and diameter variation with their sampling and uncertainty.", "questions": [ { "text": "What are the reconstructed path lengths and shaft diameters, and where were they measured?", "kind": "measurement", "id": "length-and-calibre-profile-q01" }, { "text": "How do projection, optical resolution and preparation-related distortion limit these measurements?", "kind": "provenance", "id": "length-and-calibre-profile-q02" } ] } ] } ] }, { "id": "spines-and-input-interfaces", "name": "Spines and input interfaces", "description": "Locate dendritic surface specialisations and assess evidence for local synaptic contacts.", "rationale": "Spines, shaft contacts and nearby presynaptic structures must be distinguished before inferring the dendrite's inputs.", "layers": [ { "id": "surface-specialisations", "name": "Surface specialisations", "description": "Describe observed protrusions and the shaft regions in which they could be detected.", "findings": [ { "id": "spine-observations", "name": "Spine observations", "description": "Record spine occurrence, morphology and uncertainty without equating every protrusion with a synapse.", "questions": [ { "text": "Which protrusions meet the stated criteria for spines, and which remain unclassified?", "kind": "definition", "id": "spine-observations-q01" }, { "text": "What spine density and morphology are measurable within the evaluable shaft length?", "kind": "measurement", "id": "spine-observations-q02" } ] } ] }, { "id": "local-synaptic-attribution", "name": "Local synaptic attribution", "description": "Associate candidate or confirmed contacts with particular dendritic locations.", "findings": [ { "id": "contact-evidence-and-location", "name": "Contact evidence and location", "description": "Separate proximity-based candidates from contacts supported by appropriate structural or functional evidence.", "questions": [ { "text": "What evidence supports each attributed synaptic contact, and does it establish contact beyond spatial proximity?", "kind": "provenance", "id": "contact-evidence-and-location-q01" }, { "text": "Is the contact assigned to a shaft or spine, and which partner and input properties are established?", "kind": "boundary", "id": "contact-evidence-and-location-q02" } ] } ] } ] }, { "id": "local-state-and-change", "name": "Local state and change", "description": "Record dendritic signals and structural changes at the locations and times actually observed.", "rationale": "A local readout or morphological change cannot establish the state of the entire dendrite without additional evidence.", "layers": [ { "id": "electrical-and-biochemical-readouts", "name": "Electrical and biochemical readouts", "description": "Preserve the identity, calibration and spatial coverage of local functional measurements.", "findings": [ { "id": "local-signal-interpretation", "name": "Local signal interpretation", "description": "Distinguish directly measured quantities, reporter signals and inferred events.", "questions": [ { "text": "What electrical or biochemical quantity was recorded, at which dendritic location and with what temporal resolution?", "kind": "measurement", "id": "local-signal-interpretation-q01" }, { "text": "What calibration and accompanying evidence support interpreting the readout as a particular local event?", "kind": "provenance", "id": "local-signal-interpretation-q02" } ] } ] }, { "id": "structural-dynamics", "name": "Structural dynamics", "description": "Assess changes in branches, shaft condition and spines across comparable observations.", "findings": [ { "id": "supported-dendritic-change", "name": "Supported dendritic change", "description": "Record growth, retraction, spine turnover or apparent damage while retaining alternative explanations.", "questions": [ { "text": "Which structural features changed between registered observations, and by how much?", "kind": "measurement", "id": "supported-dendritic-change-q01" }, { "text": "What evidence separates biological change from motion, labelling variation, segmentation error or preparation damage?", "kind": "provenance", "id": "supported-dendritic-change-q02" } ] } ] } ] }, { "id": "dendritic-access-and-intervention", "name": "Dendritic access and intervention", "description": "Determine which local actions are feasible and how their effects can be attributed.", "rationale": "A dendrite's size, location and preparation constrain access, while local manipulations may also affect connected or neighbouring structures.", "layers": [ { "id": "target-accessibility", "name": "Target accessibility", "description": "Match a proposed action to a resolved dendritic target and the available preparation.", "findings": [ { "id": "local-action-feasibility", "name": "Local action feasibility", "description": "Record whether a specified shaft segment, branch or spine can be observed or manipulated with adequate selectivity.", "questions": [ { "text": "Which dendritic location is the target, and can the proposed method resolve and reach it in this preparation?", "kind": "action", "id": "local-action-feasibility-q01" }, { "text": "What spatial spread or physical disturbance could involve neighbouring branches, synapses or cells?", "kind": "boundary", "id": "local-action-feasibility-q02" } ] } ] }, { "id": "response-attribution", "name": "Response attribution", "description": "Relate an intervention to measured local and wider effects.", "findings": [ { "id": "intervention-response-evidence", "name": "Intervention response evidence", "description": "Record exposure, baseline and follow-up observations sufficient to judge the claimed dendritic response.", "questions": [ { "text": "What intervention was applied, where and when, and what local response was observed relative to baseline?", "kind": "action", "id": "intervention-response-evidence-q01" }, { "text": "Which controls or simultaneous observations distinguish a local dendritic effect from parent-neuron activity or experimental artefact?", "kind": "provenance", "id": "intervention-response-evidence-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "apical dendrite", "basal dendrite", "oblique dendrite", "apical tuft", "spiny dendrite", "aspiny (smooth) dendrite", "primary (stem) dendrite", "higher-order dendritic branch" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q12821248", "note": "Neuronal dendrite; Wikipedia anatomical-terminology box links this item, distinct from metallic dendrite Q11646943." }, { "scheme": "MeSH", "value_or_pattern": "D003712", "note": "Descriptor Dendrites, U.S. National Library of Medicine." }, { "scheme": "FMA", "value_or_pattern": "67314", "note": "Foundational Model of Anatomy class for the neuronal dendrite." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Foundational Model of Anatomy class 67314, issued by the University of Washington Structural Informatics Group.", "MeSH descriptor D003712 (Dendrites), issued by the U.S. National Library of Medicine as a controlled biomedical vocabulary, not a product or safety code." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Golgi, intracellular-dye and fluorescence reconstructions of dendritic arbors to classify neuron types and map receptive fields.", "Patch-clamp, calcium and voltage imaging of dendritic integration, back-propagating spikes and dendritic spikes.", "Neuropathology of arbor simplification and spine loss in neurodevelopmental and neurodegenerative disease.", "Cable and compartmental models that treat dendrites as the spatial filter of synaptic input.", "Dendritic release of oxytocin, vasopressin and dopamine in neuroendocrine and midbrain circuits.", "Electron-microscopy connectomics assigning synapses onto dendritic shafts versus spines." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "dendritic shaft diameter (typical cortical pyramidal)", "typical_range": "0.5 to several", "unit": "µm" }, { "quantity": "presynaptic partners onto a large pyramidal dendritic tree", "typical_range": "about 30000 (some neurons up to about 100000)", "unit": "synapses" }, { "quantity": "hormone-linked change in CA1 pyramidal dendritic (spine) density", "typical_range": "up to about 30", "unit": "%" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Reduced hippocampal CA1/CA4 dendritic branching reported in autism spectrum disorder.", "Reduced basal dendritic branching in motor cortex and subiculum in Rett syndrome.", "Reduced dendritic arbor and spine density in schizophrenia.", "Shorter apical and basal dendrites in hippocampal CA1 in Alzheimer's disease.", "Spine loss, fragmentation and arbor simplification more generally, tightly correlated with impaired nervous-system function.", "Sensory deprivation (for example dark rearing) reducing spine number and altering branch distribution in visual cortex.", "The structure itself is not a public hazard; failure is of the neuron's input and integration, not of an external device." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Insect unipolar neurons place dendrites on one branch of a somatic stalk, unlike the multipolar trees typical of vertebrate principal cells.", "Some neurons, including certain invertebrate sensory cells, lack a specialized axon and transmit via dendrites, so the textbook receive-on-dendrite / send-on-axon split is not universal.", "The peripheral process of vertebrate pseudounipolar sensory neurons is often called a dendrite in teaching but conducts as an axon.", "The same English word names a different physical object in metallurgy and mineralogy (branched crystals); that sense is a separate registry item (Wikidata Q11646943).", "The anatomical term dendrite was coined in 1889 by Wilhelm His for the smaller protoplasmic processes of the nerve cell; dendron remains a synonym." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "axon", "difference": "Dendrites usually taper, branch close to the soma and receive most synapses; axons typically keep a more constant caliber, can be much longer, often start at an axon initial segment, and are the usual output path." }, { "name": "neurite", "difference": "A neurite is any cytoplasmic process of a neuron, used especially before axon versus dendrite identity is settled in developing or cultured cells." }, { "name": "dendritic spine", "difference": "A spine is a micrometre-scale protrusion on a dendrite that bears most excitatory synapses; it is a part of a dendrite, not the dendrite." }, { "name": "soma (cell body)", "difference": "The soma is the nucleated cell body from which dendrites arise, not a branched receptive process." }, { "name": "dendritic cell", "difference": "An antigen-presenting immune cell; the shared name is historical (branched morphology), not a neuronal process. Wikipedia disambiguates the two." }, { "name": "crystal or metallic dendrite", "difference": "A tree-like crystal grown from melt, solution or electrodeposition (snow, frost, cast metal, battery lithium); test: crystalline solid without neuronal cytoplasm, synapses or membrane potential." }, { "name": "glial process", "difference": "Thin astrocytic or other glial branches occupy the same neuropil but lack neuronal postsynaptic specializations of that cell and do not define a dendritic tree of a neuron." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of dendrite this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does vr.tr.dendrite denote a neuronal dendrite, a crystalline or electrochemical dendrite, or an intentionally broader concept?", "Does an existing Vercy world model already own the intended concept, requiring a registry link instead of a separate model?", "Which neuron types and developmental contexts must the model support, and which dendrite-versus-axon identification criteria are valid in each?", "What minimum evidence should establish a spine, a synaptic contact or a local dendritic electrical event for each supported observation method?", "Which context-specific observations justify interpreting dendritic morphology as injury, recovery or plasticity rather than leaving the cause unresolved?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "questions": 28 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "device, machine or tool", "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 dendrite, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise a neuronal dendrite, assess its observed structure and functional condition, and judge which observations or interventions are justified, provisionally interpreting the undefined registry term in its neuronal sense.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: proximal dendrite, dendritic branch, CA3 pyramidal cell dendrite, basal dendrite, sensory dendrite, apical dendrite, primary dendrite, distal dendrite, Basal dendrite, dendrite of olfactory receptor cell, dendrite of bipolar cell of retina, dendrite of motor neuron.", "15 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 60 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 dendrite, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "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": [ "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things." ], "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": [ "proximal dendrite", "dendritic branch", "CA3 pyramidal cell dendrite", "basal dendrite", "sensory dendrite", "apical dendrite", "primary dendrite", "distal dendrite", "Basal dendrite", "dendrite of olfactory receptor cell", "dendrite of bipolar cell of retina", "dendrite of motor neuron" ] } ], "standing": "Described in 60 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 15 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 dendrite from another, and a dendrite 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 dendrite, 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 dendrite, 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 dendrite 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 dendrite, 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 dendrite, 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 dendrite 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 dendrite 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 dendrite, 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 dendrite, 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 dendrite 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 dendrite from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a dendrite, 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 dendrite, 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 dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a dendrite is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a dendrite, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a dendrite, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a dendrite is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a dendrite, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a dendrite, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a dendrite is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a dendrite, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a dendrite, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a dendrite is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a dendrite is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a dendrite, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a dendrite, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a dendrite is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a dendrite, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a dendrite, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a dendrite 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 dendrite 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 dendrite between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a dendrite, 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 dendrite, 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 dendrite 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 dendrite, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a dendrite 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 dendrite, 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 dendrite, 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 dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "function-and-principle", "name": "Function and operating principle", "description": "What dendrite is for and how it achieves it.", "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.", "layers": [ { "id": "intended-function", "name": "Intended function", "description": "The job it does, and the jobs it is used for anyway.", "findings": [ { "id": "function-record", "name": "Function, principle and variants", "description": "What it does, how, and which variants do it differently.", "questions": [ { "id": "function-record-q01", "text": "What function does dendrite perform, on what operating principle, and which variants differ in that principle?", "kind": "definition" }, { "id": "function-record-q02", "text": "What use falls outside the intended function but happens in practice?", "kind": "boundary" } ] } ] }, { "id": "capacity-and-rating", "name": "Capacity and rating", "description": "The numbers that say what it can do and where it stops.", "findings": [ { "id": "ratings", "name": "Ratings and their conditions", "description": "Rated capacity, power, throughput and the conditions each assumes.", "questions": [ { "id": "ratings-q01", "text": "What ratings characterise dendrite, in what units, and under what stated conditions?", "kind": "measurement" }, { "id": "ratings-q02", "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?", "kind": "action" } ] } ] } ] }, { "id": "operation-and-state", "name": "Operation, controls and state", "description": "How dendrite is operated and what state it is in right now.", "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.", "layers": [ { "id": "controls-and-modes", "name": "Controls and modes", "description": "What can be set, what that changes, and what is interlocked.", "findings": [ { "id": "control-surface", "name": "Control surface and interlocks", "description": "The settings available and the conditions that block them.", "questions": [ { "id": "control-surface-q01", "text": "What controls and modes does dendrite have, and what does each change?", "kind": "definition" }, { "id": "control-surface-q02", "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?", "kind": "action" } ] } ] }, { "id": "condition-and-maintenance", "name": "Condition and maintenance", "description": "Wear, service intervals, consumables and the line between working and broken.", "findings": [ { "id": "service-record", "name": "Condition, service and consumables", "description": "What is consumed, what is serviced, and how condition is judged.", "questions": [ { "id": "service-record-q01", "text": "What consumables and service does dendrite need, at what interval, and on whose authority?", "kind": "measurement" }, { "id": "service-record-q02", "text": "What evidence separates a unit that is working from one that is out of service?", "kind": "boundary" } ] } ] } ] }, { "id": "kind-model-unit", "name": "Kind, model and unit", "description": "Whether a claim about dendrite is about the kind, a product line, or one physical unit.", "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.", "layers": [ { "id": "level-of-reference", "name": "Level of reference", "description": "The three levels and what belongs at each.", "findings": [ { "id": "level-rules", "name": "What belongs to kind, model and unit", "description": "Which properties are shared by all of them and which are not.", "questions": [ { "id": "level-rules-q01", "text": "Which facts about dendrite hold for every one of them, which for a model, and which only for one unit?", "kind": "boundary" }, { "id": "level-rules-q02", "text": "What identifies an individual unit, and what should an agent do when it has only the kind?", "kind": "action" } ] } ] }, { "id": "standards-and-conformity", "name": "Standards and conformity", "description": "The standards a working example must meet and who attests it.", "findings": [ { "id": "conformity", "name": "Standards, marks and attestation", "description": "Which standard applies, who certifies, and what the mark means.", "questions": [ { "id": "conformity-q01", "text": "Which standards govern dendrite, issued by whom, and what does conformity actually assert?", "kind": "provenance" }, { "id": "conformity-q02", "text": "What may an agent conclude from a certification mark, and what may it not?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a dendrite 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 dendrite and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a dendrite, 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 dendrite, 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 dendrite 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 dendrite is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a dendrite, 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 dendrite, 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 dendrite is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 8, "layers": 17, "findings": 19, "questions": 51 } } } }