impulse
Model an impulse as a momentary urge toward action so an AI agent can recognise it, assess its urgency and controllability, and identify appropriate responses without treating the urge as a decision.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex + Grok
Purpose and description
Model an impulse as a momentary urge toward action so an AI agent can recognise it, assess its urgency and controllability, and identify appropriate responses without treating the urge as a decision.
Impulse is the time-integral of force (or of a force-like quantity) that changes a system's linear or angular momentum; in quality and metrology practice it is treated as a pulse of action whose magnitude, duration and waveform must be specified together.
It can be Record an impulse report while marking any inferred elements explicitly; Clarify the urged action and whether the person endorses acting on it; Track changes in intensity, urgency and perceived ability to refrain; Offer a pause or an alternative response consistent with the person's expressed preferences; Link an impulse to possible triggers and subsequent actions without asserting unverified causation; Reassess whether the urge remains present after a response or change of context.
Distinguishing features
An impulse includes a pull toward doing something; a sensation or emotion alone does not establish that pull.
A person can report an impulse while rejecting its proposed action; an impulse therefore does not establish intention, endorsement or consent.
An impulse is an identifiable episode or fluctuation of urge; a stable preference alone does not establish an impulse episode.
An action can occur without a reported impulse, and an impulse can pass without action; behaviour alone does not establish the preceding experience.
If the referent is characterised by force over time or signal propagation rather than experienced action pressure, it falls outside this provisional interpretation.
Scope
+ The action, expression, approach or avoidance toward which an impulse presses
+ The reported experience and evidence supporting identification of the impulse
+ Onset, recurrence, duration and changes in felt intensity
+ The relationship between the urge, available deliberation and perceived control
+ Whether the impulse subsides, is resisted, is redirected or is acted upon
- Mechanical impulse as force integrated over time
- Electrical impulses and neural signalling events
- Emotions and bodily sensations considered independently of an urge to act
- Enduring preferences, motives and personality traits
- Intentions, plans and commitments formed after deliberation
- Executed actions and their full consequences
Characteristics
- Urged action
- Action or action class toward which the urge is directed; unspecified; unknown Identifies what responding to the impulse would involve without assuming a plan exists.
- Identification basis
- Contemporaneous self-report; retrospective self-report; observer hypothesis; unknown Keeps reported experience distinct from inference based on behaviour.
- Onset
- Reported timestamp or bounded interval, with temporal precision Locates the episode relative to possible triggers and opportunities to respond.
- Felt intensity
- Self-report on an explicitly named scale, with anchors and observation time; unknown Supports comparison within an episode without assuming scores are comparable across people.
- Felt urgency
- Can wait; presses for action soon; presses for immediate action; unclear Distinguishes strength of urge from its perceived demand for immediate action.
- Perceived ability to refrain
- Reported easy; effortful; reportedly unable at that moment; uncertain; unreported Informs support for pausing while preserving the distinction between perceived and demonstrated control.
- Relationship to endorsed intention
- Aligned; opposed; mixed; no intention formed; unknown Prevents an urge from being mistaken for what the person has decided to do.
- Episode state
- Present; fluctuating; reportedly subsided; unresolved; unknown Tracks the urge itself separately from whether an associated action occurred.
- Associated action
- Linked action event, with reported or inferred connection; none reported; unknown Allows follow-through to be recorded without assuming the impulse caused the action.
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.impulse-act
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 26 questions.
Urge identification Establishes whether the referent is an experienced push toward action and what supports that interpretation.
An agent must distinguish an impulse from a feeling, an intention and an observer's explanation of behaviour.
Experienced action pull
Captures what the person feels drawn to do without converting that pull into a commitment.
Urged response
Record the proposed movement, expression, approach or avoidance, retaining uncertainty when the urge has no clear target.
- What does the person feel an urge to do, stop doing or move away from? definition
- Is an action pull actually reported, or only a sensation, emotion or thought? boundary
Report and attribution
Separates access to the person's experience from external interpretation.
Impulse evidence
Record who identified the impulse, when they identified it and which elements remain inferred.
- Was the impulse reported by the person during the episode, recalled later or attributed by an observer? provenance
- What evidence supports calling this an impulse rather than inferring one solely from an abrupt action? boundary
Onset and course Represents when an urge appears, how it changes and whether later urges belong to the same episode.
The opportunity to respond depends on the urge's course, while repeated urges should not automatically be treated as one continuous state.
Onset context
Places the beginning of the urge relative to events that may have preceded it.
Trigger candidate
Record preceding cues and attributed triggers without treating temporal proximity as proof of causation.
- When was the urge first noticed, and what happened immediately beforehand? measurement
- Is the proposed trigger identified by the person, repeatedly observed or merely suspected? provenance
Urge trajectory
Tracks growth, fluctuation, subsiding and return of the urge.
Episode continuity
Record observations across time and the basis for distinguishing continuation from recurrence.
- How did the reported urge change between its first observation and its most recent observation? measurement
- If the urge returned, was there a reported interval without it that supports recording a new episode? boundary
Pressure and deliberation Distinguishes how strongly and urgently an impulse is felt from whether acting on it is endorsed.
A strong urge can coexist with a decision to refrain, so intensity alone cannot determine intention or permissible action.
Strength and immediacy
Records felt intensity and time pressure as separate aspects of the episode.
Felt action pressure
Capture the person's descriptions or explicitly anchored ratings without imposing an unsupported universal scale.
- How strong is the urge on the stated scale or in the person's own words? measurement
- Does the urge press for immediate action, or does the person experience room to wait? measurement
Endorsement and restraint
Examines the relationship between the urge, deliberate choice and perceived ability to refrain.
Urge and choice separation
Record endorsement and perceived control independently; neither is established by the presence of an impulse.
- Does the person want to act on this urge, oppose it or remain undecided? boundary
- What ability to pause or refrain does the person report at this moment? measurement
- What response, if any, has the person actually chosen or authorised? action
Response and resolution Records how the impulse is handled and what happens to both the urge and the associated behaviour.
Acting, refraining and experiencing relief are distinct outcomes; an agent needs to preserve those distinctions when assessing the episode.
Response options
Connects possible responses to the particular urged action and the person's expressed choices.
Handling the urge
Record available and selected responses such as waiting, redirecting attention, changing context or pursuing an endorsed action.
- Which feasible responses could the person choose before carrying out the urged action? action
- Which response has the person selected, and what assistance have they requested? action
Urge and action outcomes
Tracks whether the urge remains and whether an associated action occurred.
Resolution evidence
Record the latest reported urge state separately from action completion and avoid assuming that either establishes the other.
- After the response or passage of time, is the urge still present, reduced, stronger or reportedly absent? measurement
- Was the urged action performed, partly performed or not performed, and what supports linking it to this impulse? provenance
- Is there enough evidence to close this episode, or does its current state remain unknown? boundary
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- linear mechanical impulse
- angular impulse
- specific impulse (propulsion)
- electrical impulse (voltage/current pulse)
- nerve impulse (action potential)
- pressure impulse (blast/overpressure)
- hydraulic/fluid impulse
- digital/logical impulse (clock or trigger pulse)
- Which of these kinds and varieties hold for the sense of impulse this model covers, and on what evidence? provenance
Identifiers and schemes
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Wikidata - Q216523 - physical quantity: impulse (mechanics)
- ISO 80000-4 quantity - J (impulse); p (momentum, related) - quantity symbol J; SI unit N·s
- Which of these identifiers and schemes hold for the sense of impulse this model covers, and on what evidence? provenance
Standards and regulation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- ISO 80000-4:2019 Quantities and units - Part 4: Mechanics (ISO)
- ISO 2041:2018 Mechanical vibration, shock and condition monitoring - Vocabulary (ISO)
- IEC 60050 International Electrotechnical Vocabulary, impulse/pulse entries (IEC)
- SI Brochure, 9th edition - derived units (BIPM)
- Which of these standards and regulation hold for the sense of impulse this model covers, and on what evidence? provenance
Real-world use
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Impact and crash testing: recorded force-time traces whose integral is the impulse delivered to a specimen or dummy
- Pyrotechnic and blast assessment: pressure-impulse (P-I) diagrams for structural and human injury criteria
- Rocket and jet propulsion: specific impulse as delivered impulse per unit propellant mass or weight
- Electrical insulation and EMC: lightning-impulse and switching-impulse withstand tests on apparatus
- Biomechanics and sports: ground-reaction force impulse as a proxy for change of momentum in gait, jump and tackle analysis
- Which of these real-world use hold for the sense of impulse this model covers, and on what evidence? provenance
Typical measurements
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- linear impulse - 10^-6 to 10^6 depending on scale (micro-impact to vehicle crash) - N·s
- impulse duration - microseconds (electrical/pyrotechnic) to hundreds of milliseconds (crash, gait) - s
- specific impulse - 100-450 (chemical rockets); higher for electric propulsion when quoted as seconds - s (or N·s/kg)
- peak force during impulse - newtons to meganewtons by application - N
- Which of these typical measurements hold for the sense of impulse this model covers, and on what evidence? provenance
Failure modes and hazards
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Treating peak force as a substitute for impulse, missing that a long weak pulse can equal a short strong one
- Unspecified waveform: two pulses with the same integral can produce different damage (rate-sensitive materials, human injury)
- Sensor clipping or insufficient bandwidth under-integrates a short pulse
- Confusing impulse (∫F dt) with impulse response of a system or with a digital pulse
- Blast/pressure impulse underestimated when only peak overpressure is recorded
- Which of these failure modes and hazards hold for the sense of impulse this model covers, and on what evidence? provenance
Regional variation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Specific impulse quoted in seconds (common in US/aerospace) versus effective exhaust velocity in m/s (SI-preferring practice)
- Electrical 'impulse voltage' test waves standardized as 1.2/50 µs lightning and 250/2500 µs switching (IEC) with national adoptions
- Sports and clinical gait literature often report 'impulse' as force-time integral without stating whether the vertical, resultant, or a phase-windowed component is meant
- Which of these regional variation hold for the sense of impulse this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- momentum - Impulse equals the change in momentum of a system; momentum is a state, impulse is the process that changes it
- impulse response - The output of a linear system to a Dirac delta; not the mechanical quantity J = ∫F dt
- pulse / shock - Shock or pulse names the event or waveform; impulse is the integral (or a standardized test wave in electrical practice)
- impact energy / work - Energy is force integrated over distance (or ∫F·v dt); impulse is force integrated over time
- specific impulse vs thrust - Thrust is force; specific impulse is impulse delivered per unit propellant, i.e. a measure of propellant economy
- Which of these neighbouring kinds and how to tell them apart hold for the sense of impulse this model covers, and on what evidence? provenance
Sources
- ISO 80000-4:2019 Quantities and units - Part 4: Mechanics - SI quantity impulse J = ∫ F dt, unit newton-second, as the mechanical definition used in metrology
- The International System of Units (SI Brochure), 9th edition - Coherent derived unit N·s for impulse and relationship to momentum
- impulse (Q216523) - Canonical identifier and aliases for the physical quantity impulse
- ISO 2041:2018 Mechanical vibration, shock and condition monitoring - Vocabulary - Shock/impulse as a sudden non-periodic excitation distinguished from vibration
What the second pass must settle
- Does XCT / XCT.QLT intend impulse to mean an experienced urge toward action, a physical quantity, a signal event or another concept?
- Which neighbouring registry entries own desire, intention, compulsion, reflex and motivation, and where should their boundaries with impulse be drawn?
- What evidence is sufficient to identify an impulse when contemporaneous self-report is unavailable?
- Which intensity, urgency and perceived-control measures are suitable for the intended setting, and what comparisons do they support?
- What operational rule should distinguish a fluctuating impulse from separate recurrent episodes without imposing an arbitrary duration threshold?