Concepts · Humans and machines
An up-to-date glossary of memory terms across science, computing, AI, and technology.
Published2026-08-07
1.9k readsCanonical Memory Glossary
Memory terms often look similar across biology, psychology, computer science, and AI, but the mechanisms are different. A database stores, a search engine retrieves, a cache accelerates, and a memory changes future behavior. This glossary keeps the terms compact for lookup, while related concept pages explain how memory differs from storage, retrieval, context windows, and organic AI memory.
Sorted in alphabetical order →
| # | Reference | Field | What is it? Why is it worth knowing. |
|---|---|---|---|
| 1 | ACT-R | ACT-R · Cognitive Architecture · Cognitive Science | Adaptive Control of Thought-Rational: a cognitive architecture that models cognition through declarative memory, procedural memory, goals, buffers, activation, and production rules. |
| 2 | Activation | ACT-R · Cognitive Architecture · AI Systems | How available a memory is in the current context. |
| 3 | Activation budget | Achiral · AI Systems | The limited amount of remembered context that should enter a task before memory becomes noise. |
| 4 | Activation precision | Benchmarking · Retrieval | Whether the right memory becomes active at the right time. |
| 5 | Adaptation | Learning Theory · AI Systems | Updating behavior when reality, feedback, or goals change. |
| 6 | Agent memory | AI Engineering · AI Systems | Persistent context available to an agent across interactions. |
| 7 | Amnesia | Neuropsychology | Partial or complete loss of memory ability. |
| 8 | Anterograde amnesia | Neuropsychology | Difficulty forming new memories after an injury or disruption. |
| 9 | Anticipatory memory | Psychology · Cognitive Science · Time | Memory-informed expectation about what is likely to happen next, used in prediction, preparation, and planning. |
| 10 | Associative memory | Psychology · Neuroscience · Computer Science | Memory organized by links between items, cues, or patterns. |
| 11 | Attention | Psychology · Cognitive Science · Neuroscience | Selective allocation of mental or neural resources; important because attention strongly affects what is encoded, retrieved, and acted on. |
| 12 | Autobiographical memory | Cognitive Psychology · Neuropsychology | Memory for personally experienced life events. |
| 13 | Autonoetic consciousness | Psychology · Cognitive Science · Time | The capacity to mentally place oneself in past or future experience, often linked to episodic memory and subjective time. |
| 14 | Awareness | Psychology · Cognitive Science · Philosophy | The state of noticing or being able to register information, whether about the world, the body, a thought, or a memory. |
| 15 | Axon | Neurobiology · Neuroscience | The long projection of a neuron that carries signals to other neurons, muscles, or glands. |
| 16 | Backward transfer | Psychology · Learning Science · Time | The influence of later learning on earlier memories, sometimes improving, reshaping, or interfering with what was learned before. |
| 17 | Base-level activation | ACT-R · Cognitive Architecture | Availability driven by recency and frequency of use. |
| 18 | Belief update accuracy | Benchmarking · AI Systems | Whether newer information correctly supersedes outdated information. |
| 19 | Cache | Computer Science | Temporary storage for fast reuse. |
| 20 | Catastrophic forgetting | Machine Learning · AI Systems | The loss of previously learned capabilities or knowledge when a model learns new information. |
| 21 | Cellular memory | Biology · Medicine | A broad biological term for durable cell-level changes caused by prior exposure, state, differentiation, or signaling history. |
| 22 | Chronesthesia | Psychology · Cognitive Science · Time | Mental time travel: the capacity to be aware of subjective past and future time. |
| 23 | Chunk | Cognitive Psychology · ACT-R | A structured unit of remembered information. |
| 24 | Circadian rhythm | Neuroscience · Sleep Research · Time | A roughly 24-hour biological timing rhythm that affects attention, learning, sleep, consolidation, and recall. |
| 25 | CLARION | Cognitive Architecture · Cognitive Science | A cognitive architecture that distinguishes implicit and explicit processes in learning, memory, and action. |
| 26 | Cognitive architecture | Cognitive Science · AI Systems | A computational framework for modeling the structures and processes that produce intelligent behavior, including memory, goals, attention, and action selection. |
| 27 | Conscious | Psychology · Cognitive Science · Philosophy | Available to awareness or report; in memory, conscious recall is remembering that can be deliberately noticed or described. |
| 28 | Consciousness | Cognitive Science · Neuroscience · Philosophy | The condition of subjective experience or reportable awareness; relevant to memory because not all remembered influence is conscious. |
| 29 | Consolidation | Neuroscience · Psychology · AI Systems | The process by which memory becomes more stable over time. |
| 30 | Context | AI Systems · HCI · Cognitive Science | The information shaping interpretation and action right now. |
| 31 | Context drift | AI Systems · Organizational Memory | Change in the meaning or usefulness of memory as surrounding work changes. |
| 32 | Context of Reality (CoR) | Achiral · AI Systems · Governance | The operational picture a system uses to decide what is true enough, current enough, authorized enough, and relevant enough to act on. |
| 33 | Context reinstatement | Psychology · Cognitive Science · Time | Improving recall by mentally or physically restoring the context in which a memory was encoded. |
| 34 | Context switch success rate | Benchmarking · Retrieval | Whether retrieval changes correctly when project, domain, or conversation context changes. |
| 35 | Contextual recall | Cognitive Systems · Benchmarking | Retrieval that depends on the current situation rather than only semantic similarity. |
| 36 | Continual learning | Machine Learning · AI Systems | Learning new information over time without requiring complete retraining and without losing earlier capabilities. |
| 37 | Continuity | Cognitive Systems · Product Design | Behavior that reflects relevant past experience over time. |
| 38 | Continuity gradient | Achiral · AI Systems | The accumulated influence of past experience on future behavior. |
| 39 | Continuity over Time (CoT) | Achiral · AI Systems · Time | The degree to which a system carries relevant context, decisions, preferences, and learned behavior forward so future actions reflect past experience without restarting from zero. |
| 40 | Core memory | Achiral · Organizational Memory · Governance | Reviewed, durable organizational memory preserved under stronger governance. |
| 41 | Cue | Psychology · Retrieval | A signal that helps bring a memory into use. |
| 42 | Decay | Psychology · Cognitive Architecture | Reduced memory availability over time or nonuse. |
| 43 | Decision memory | Organizational Memory · AI Systems | Remembered decisions, tradeoffs, owners, dates, and rationales that help a team avoid re-litigating the same choice. |
| 44 | Declarative memory | Cognitive Psychology · ACT-R | Memory for facts and events that can be represented explicitly. |
| 45 | Delayed recall | Psychology · Neuropsychology · Time | Recall tested after a delay, often used to assess retention and memory consolidation. |
| 46 | Delayed recognition | Psychology · Neuropsychology · Time | Recognition tested after a delay, useful for distinguishing retrieval failure from loss of stored information. |
| 47 | Dendrite | Neurobiology · Neuroscience | A branching neuron structure that receives input from other neurons and contributes to synaptic integration. |
| 48 | Differentiable Neural Computer | Machine Learning · AI Systems | A neural architecture with an external differentiable memory system designed for learning to store and retrieve structured information. |
| 49 | Distractor | Psychology · Benchmarking | A similar but incorrect memory or item competing with the target. |
| 50 | Dream | Neuroscience · Psychology · Sleep Research | A sleep experience involving images, sensations, emotions, and narrative-like associations, often drawing on memory and recombining it. |
| 51 | Duration memory | Psychology · Time | Memory for how long an event, interval, task, or experience lasted. |
| 52 | Ebbinghaus forgetting curve | Psychology · Learning Science · Time | A classic model showing that memory tends to decline over time unless reinforced or relearned. |
| 53 | Embodied cognition | Cognitive Science · Psychology · Philosophy | The view that cognition and memory are shaped by the body, action, perception, and environment, not only abstract internal representations. |
| 54 | Emergent memory | AI Systems · Benchmarking · Cognitive Science | Memory that arises from interactions among experience, retrieval, behavior, and learning rather than from a single explicit storage action. |
| 55 | Encoding | Neuroscience · Psychology | Transforming experience into a form that can be stored and retrieved. |
| 56 | Engram | Neurobiology · Neuroscience | The physical or functional substrate of a memory in the brain. |
| 57 | Epigenetic memory | Biology · Medicine | Persistent changes in gene regulation that can carry information about developmental, cellular, or environmental history without changing DNA sequence. |
| 58 | Episodic memory | Cognitive Psychology · Neuropsychology | Memory for situated events: what happened, where, when, and with whom. |
| 59 | Event boundary | Psychology · Cognitive Science · Time | A perceived transition between events that shapes how experience is segmented, encoded, and later remembered. |
| 60 | Event memory | Psychology · Cognitive Science · Time | Memory organized around a bounded event, including participants, actions, setting, order, and outcome. |
| 61 | Event segmentation | Psychology · Cognitive Science · Time | The process of dividing continuous experience into meaningful events, which affects memory organization and recall. |
| 62 | Experience | Psychology · Cognitive Science · Philosophy | A lived event or state that can be encoded, interpreted, remembered, and later used to shape behavior. |
| 63 | Experience replay | Machine Learning · Reinforcement Learning | Reusing stored past experiences during learning to improve retention, stability, or policy learning. |
| 64 | Explicit memory | Psychology · Neuropsychology | Memory that can be consciously recalled or declared, often including episodic and semantic memory. |
| 65 | Extinction | Behavioral Psychology · Neuroscience | Weakening of a learned response when it stops being reinforced. |
| 66 | Flashback | Psychology · Psychiatry · Literature · Time | A vivid re-experiencing or narrative return to a past event, often discussed in trauma, film, literature, and memory. |
| 67 | Flashbulb memory | Psychology | Memory for unusually salient moments. |
| 68 | Forgetting | Psychology · Neuroscience · AI Systems | Reduced availability, suppression, expiry, or removal of memory. |
| 69 | Forgetting curve | Psychology · Learning Science · Time | A curve describing how retention declines over time without reinforcement, review, or meaningful reuse. |
| 70 | Forgotten-memory ratio | Benchmarking · Forgetting | The share of memories that appropriately fade or stay out of retrieval. |
| 71 | Forward transfer | Psychology · Learning Science · Time | The influence of earlier learning on later learning or recall. |
| 72 | Frame | Cognitive Science · Linguistics · Philosophy | A structure for interpreting a situation, memory, statement, or event by making some meanings more available than others. |
| 73 | Frame of reference | Cognitive Science · Psychology · Philosophy | The background orientation, assumptions, context, and standpoint from which something is perceived or remembered. |
| 74 | Future memory | Psychology · Time | Informal term for memory-like representation of intended or imagined future actions and scenarios. |
| 75 | Generation effect | Psychology · Learning Science · Time | The tendency to remember information better when one has actively generated it rather than passively received it. |
| 76 | Global workspace | Cognitive Science · Consciousness · AI Systems | A model of cognition in which information becomes broadly available to specialized processes when it enters a shared workspace. |
| 77 | Governed consolidation | Achiral · Governance · AI Systems | Consolidation that requires evidence, permissions, ownership, and review before memory becomes more durable. |
| 78 | Habit memory | Procedural Memory · Product Vocabulary | Remembered action patterns that can shape repeated workflows. |
| 79 | Handoff memory | Organizational Memory · Team Operations | Context preserved across people, shifts, projects, or tools so work can continue without restarting from scratch. |
| 80 | Hippocampus | Neurobiology · Neuroscience | Brain structure central to episodic memory formation and spatial memory. |
| 81 | History effect | AI Systems · Team Operations · Time | The influence of prior states, decisions, or events on current system behavior or team judgment. |
| 82 | Hopfield network | Neural Networks · Associative Memory | A recurrent neural network model that stores and retrieves patterns as attractor states. |
| 83 | Immune memory | Biology · Medicine | The immune system's improved response to previously encountered pathogens or antigens. |
| 84 | Implicit memory | Psychology · Neuropsychology | Memory that influences behavior without explicit conscious recall. |
| 85 | Institutional memory | Organizational Memory · Sociology | The accumulated knowledge, practices, decisions, stories, and records that persist inside an institution over time. |
| 86 | Interference | Psychology | Similar memories competing with one another. |
| 87 | Interference resistance | Benchmarking · Retrieval | The ability to distinguish similar memories and avoid distractors. |
| 88 | Interval timing | Neuroscience · Psychology · Time | Perception or estimation of time intervals, often relevant to sequence, rhythm, learning, and action. |
| 89 | Irrelevant activation rate | Benchmarking · Retrieval | How often unrelated memory becomes active. |
| 90 | Jog your memory | Idiom · Everyday Language | To prompt someone to remember something. The idiomatic form is usually singular: "jog your memory." |
| 91 | Junk activation rate | Benchmarking · Retrieval | How often low-value or stale memory enters retrieval. |
| 92 | Knowledge graph | Computer Science · Knowledge Representation | Entities and relationships represented as a graph. |
| 93 | Lag effect | Psychology · Learning Science · Time | The finding that longer spacing between learning episodes can improve later retention under some conditions. |
| 94 | Latency | Computer Science · AI Systems · Time | The delay between a request and a response; in memory systems, retrieval latency affects whether memory is usable in real time. |
| 95 | Learning | Psychology · Neurobiology · Machine Learning | A durable change in knowledge, behavior, representation, or capability caused by experience, practice, feedback, or exposure. |
| 96 | Life review | Psychology · Gerontology · Time | The process of reflecting on and integrating memories from across a life, often discussed in aging, therapy, and identity. |
| 97 | Living memory | AI Systems · Benchmarking · Organizational Memory | Memory that can strengthen, weaken, associate, and adapt over time as conditions and use change. |
| 98 | Locus of control | Psychology · Cognitive Science · Team Operations | A belief about whether outcomes are mainly shaped by one's own actions or by external forces; relevant to agency, responsibility, and learned behavior. |
| 99 | Long short-term memory | Machine Learning · Neural Networks | A recurrent neural network architecture designed to preserve and update information over longer sequences. |
| 100 | Long-term depression | Neurobiology · Neuroscience | A long-lasting decrease in synaptic strength, often discussed with learning, plasticity, and memory refinement. |
| 101 | Long-term memory | Cognitive Psychology · Neuroscience | Memory that persists beyond the current moment. |
| 102 | Long-term potentiation | Neurobiology · Neuroscience | A long-lasting increase in synaptic strength after repeated activity, widely studied as a cellular mechanism related to learning and memory. |
| 103 | Lucid dreaming | Neuroscience · Psychology · Sleep Research | Dreaming while aware that one is dreaming, sometimes with partial control over the dream experience. |
| 104 | Matter | Philosophy · Neuroscience · Neurobiology | Physical substance or material reality; relevant to memory when asking how mental continuity depends on biological or computational substrate. |
| 105 | Memory | Cross-field | A durable change caused by past experience that can alter future behavior. |
| 106 | Memory age | AI Systems · Organizational Memory · Time | How old a memory is relative to its creation, last validation, last retrieval, or current relevance. |
| 107 | Memory consolidation rate | Benchmarking · Consolidation | How often repeated or important information becomes more stable. |
| 108 | Memory freshness | AI Systems · Team Operations · Time | How current a memory is judged to be for a task, decision, person, or environment. |
| 109 | Memory half-life | Learning Science · AI Systems · Time | The estimated time over which a memory remains likely to be retained or useful before review, reinforcement, or decay. |
| 110 | Memory latency | AI Systems · Information Retrieval · Time | The time it takes for a memory system to retrieve and deliver relevant context. |
| 111 | Memory lifecycle | AI Systems · Governance | Capture, scope, retrieve, reinforce, revise, forget, and audit memory. |
| 112 | Memory persistence horizon | AI Systems · Organizational Memory · Time | The expected duration for which a memory should remain available before expiry, review, archival, or deletion. |
| 113 | Memory refresh | AI Systems · Team Operations · Time | The act of updating, reviewing, or revalidating memory so it remains current and useful. |
| 114 | Memory retention interval | Psychology · Learning Science · Time | The time between encoding and later recall or recognition. |
| 115 | Memory selection boundary | Achiral · AI Systems | The boundary between passing context, retrievable trace, and durable reviewed memory. |
| 116 | Memory shaping | Psychology · Cognitive Science · AI Systems | The way attention, framing, repetition, emotion, context, or later interpretation changes what is remembered and how it is used. |
| 117 | Memory staleness | AI Systems · Organizational Memory · Time | The condition of a memory becoming outdated, misleading, or less useful as reality changes. |
| 118 | Memory trace | Psychology · Neuroscience · AI Systems | A stored remnant of experience. |
| 119 | Mental imagery | Psychology · Cognitive Science · Neuroscience | The experience of forming or recalling image-like representations without the original object being present. |
| 120 | Mental picture | Psychology · Everyday Language | A remembered or imagined image-like representation used to picture a person, place, scene, or event. |
| 121 | Mental time travel | Psychology · Cognitive Science · Time | The ability to mentally revisit past experiences or imagine future scenarios. |
| 122 | Mind | Philosophy · Cognitive Science · Psychology | The domain of thought, perception, feeling, intention, and memory; often contrasted with matter, brain, body, or machine. |
| 123 | Myelin | Neurobiology · Neuroscience | The insulating sheath around many axons that supports faster and more reliable neural signaling. |
| 124 | Narrative time | Literature · Cognitive Science · Time | The ordering, compression, expansion, or disruption of time in remembered or narrated experience. |
| 125 | Neocortex | Neurobiology · Neuroscience | The outer layered cortex of the mammalian brain, involved in perception, language, reasoning, and long-term memory representation. |
| 126 | Neural circuit | Neurobiology · Systems Neuroscience | A connected group of neurons whose activity supports perception, action, learning, or memory. |
| 127 | Neural connectivity | Neurobiology · Neuroscience | The pattern of structural or functional connections among neurons or brain regions. |
| 128 | Neural Turing Machine | Machine Learning · AI Systems | A neural architecture that combines a controller with external memory and differentiable read-write operations. |
| 129 | Neuron wiring | Neurobiology · Neuroscience | Informal shorthand for the formation, strengthening, weakening, or reorganization of neural connections. |
| 130 | Neuroplasticity | Neurobiology · Neuroscience · Medicine | The nervous system's capacity to change its structure, function, or connectivity through development, experience, injury, or learning. |
| 131 | Nightmare | Psychology · Psychiatry · Sleep Research | A distressing dream that can involve fear, threat, trauma, or emotional memory and may persist after waking. |
| 132 | Nonconscious processing | Psychology · Neuroscience · Cognitive Science | Information processing that affects behavior or memory without becoming consciously available. |
| 133 | Operating memory | Organizational Memory · Team Operations | The practical context a team needs to keep work moving: current priorities, open loops, responsibilities, exceptions, and decisions. |
| 134 | Order effect | Psychology · Learning Science · Time | A change in memory or judgment caused by the sequence in which information is encountered. |
| 135 | Organic memory | Achiral · Benchmarking · AI Systems | Memory that treats relevance, lifecycle, validation, reinforcement, decay, and forgetting as first-class behavior. |
| 136 | Persistence | Computer Science | Storage beyond the current process, request, or session. |
| 137 | Picture | Everyday Language · Psychology | To form a mental image or scene; in memory, to reconstruct something as an image-like representation. |
| 138 | Pilot | AI Systems · Team Operations · Control Systems | A directing role or control metaphor: the actor or system steering action using current context, feedback, memory, and goals. |
| 139 | Preconscious | Psychology · Psychoanalysis | Information not currently conscious but potentially available to awareness; historically important but used differently across traditions. |
| 140 | Primacy effect | Psychology · Learning Science · Time | The tendency to remember earlier items in a sequence better than middle items. |
| 141 | Procedural memory | Cognitive Psychology · Neuroscience · ACT-R | Memory for how to do things. |
| 142 | Process memory | Organizational Memory · Team Operations | Remembered knowledge about how recurring work gets done, including steps, owners, tools, approvals, and exceptions. |
| 143 | Production | ACT-R | A condition-action rule used by procedural memory. |
| 144 | Prospective memory | Psychology · Team Operations | Memory for intended future actions, such as remembering to follow up, send a report, or act at the right time. |
| 145 | Qualia | Philosophy · Consciousness Studies | The subjective qualities of experience, such as what a remembered color, pain, or feeling is like from the inside. |
| 146 | RAG | AI Engineering · Retrieval | Retrieval-augmented generation: retrieving external context to condition a model's answer. |
| 147 | Recall | Psychology | Bringing stored information back into use. |
| 148 | Recall latency | Psychology · Information Retrieval · Time | The time it takes to bring a memory back into use after a cue or query. |
| 149 | Recency bias | Psychology · Team Operations · Time | The tendency to overweight recent information when judging, remembering, or deciding. |
| 150 | Recency effect | Psychology · Time | The tendency to remember recently presented or experienced information better than earlier information. |
| 151 | Recognition | Psychology | Identifying information when it is encountered again. |
| 152 | Recollect | Psychology · Everyday Language | To deliberately bring something back to mind, often with some sense of context or detail. |
| 153 | Recollection | Psychology · Neuropsychology | A form of remembering that retrieves contextual details about a prior experience, not only a feeling of familiarity. |
| 154 | Reconsolidation | Neuroscience · Psychology | Retrieved memory becoming modifiable before being stored again. |
| 155 | Recurrent neural network | Machine Learning · Neural Networks | A neural network architecture that maintains hidden state across sequence steps. |
| 156 | Reinforcement | Learning Theory · Cognitive Architecture | Reuse or reward increasing future availability or confidence. |
| 157 | Reminiscence | Psychology · Gerontology · Time | The act of recalling and reflecting on past experiences, often with emotional or identity significance. |
| 158 | Retention | Psychology · Learning Science · AI Systems | The continued availability of learned or stored information over time. |
| 159 | Retention curve | Psychology · Learning Science · Time | A curve showing how much information remains available across a retention interval. |
| 160 | Retention schedule | Organizational Memory · Archival Science · Time | A policy defining how long records or memories should be kept, reviewed, archived, or deleted. |
| 161 | Retrieval | Psychology · Information Retrieval · AI Systems | Finding and returning relevant stored information. |
| 162 | Retrieval efficiency | Benchmarking · Retrieval | The memory, latency, and token cost required to retrieve useful context. |
| 163 | Retrograde amnesia | Neuropsychology | Loss of memories formed before an injury or disruption. |
| 164 | Retrospective memory | Psychology · Time | Memory for past events, facts, or experiences, often contrasted with prospective memory for future intentions. |
| 165 | Review interval | Learning Science · AI Systems · Time | The time between reviews or reinforcements of a memory, often used in spaced repetition and memory maintenance. |
| 166 | Rhythm | Neuroscience · Music · Time | A patterned timing structure that can support attention, prediction, movement, learning, and memory. |
| 167 | Salience | Neuroscience · Psychology · AI Systems | The importance or attention-worthiness of an experience. |
| 168 | Schema | Psychology · Cognitive Science · AI Systems | An organized pattern of knowledge that shapes how new information is interpreted, encoded, and remembered. |
| 169 | Selective forgetting | Cognitive Psychology · Benchmarking | Ignoring or fading low-value, stale, irrelevant, or unsafe memory. |
| 170 | Self-model | Cognitive Science · AI Systems · Philosophy | A representation a system uses of itself, its state, capacities, history, goals, or boundaries. |
| 171 | Semantic memory | Cognitive Psychology · Neuropsychology | Memory for reusable facts, meanings, concepts, and stable knowledge. |
| 172 | Sensory memory | Cognitive Psychology | Brief retention of sensory information immediately after perception. |
| 173 | Sequence memory | Psychology · Machine Learning · Time | Memory for ordered events, steps, actions, or states. |
| 174 | Serial position effect | Psychology · Learning Science · Time | The pattern in which items at the beginning and end of a sequence are often remembered better than middle items. |
| 175 | Session memory | AI Systems · Team Operations · Time | Memory scoped to one session, meeting, chat, task, or bounded period of work. |
| 176 | Shared context | Organizational Memory · AI Systems | Context that is available to a group or system rather than locked inside one person, conversation, or tool. |
| 177 | Short-term memory | Cognitive Psychology | Temporarily available information over a short horizon. |
| 178 | Short-term memory loss | Neuropsychology · Psychology | Difficulty retaining or recalling recent information over a short time horizon; often used colloquially for several distinct memory problems. |
| 179 | Soar | Cognitive Architecture · Cognitive Science · AI Systems | A cognitive architecture for general intelligence that uses working memory, long-term memories, decision cycles, operators, and learning mechanisms. |
| 180 | Source memory | Cognitive Psychology | Memory for where information came from. |
| 181 | Spaced repetition | Psychology · Learning Science | Learning practice spaced over time to improve retention. |
| 182 | Spacing effect | Psychology · Learning Science · Time | The finding that spaced practice often improves long-term retention more than massed practice. |
| 183 | Spreading activation | Cognitive Science · Semantic Networks | Activation moving through related concepts or associations. |
| 184 | State | Computer Science | Current values that determine system behavior. |
| 185 | State history | Computer Science · AI Systems · Time | The prior sequence of states that helps explain or determine a system’s current state. |
| 186 | Stream of consciousness | Literature · Psychology | A continuous flow of thoughts, impressions, sensations, and associations. The phrase is "stream of consciousness," not "stream of conscious." |
| 187 | Subconscious | Psychology · Everyday Language | A broad everyday term for mental processes outside current awareness; useful colloquially but less precise than implicit, automatic, nonconscious, or preconscious. |
| 188 | Supersession | Knowledge Management · AI Governance | Newer evidence replacing an older belief while preserving history. |
| 189 | Synapse | Neurobiology · Neuroscience | A junction where one neuron communicates with another cell, often central to discussions of learning and memory. |
| 190 | Synaptic plasticity | Neurobiology · Neuroscience | Change in synaptic strength associated with learning. |
| 191 | Systems consolidation | Neurobiology · Neuroscience | The longer-term reorganization of memory across brain systems, often involving changing dependence between hippocampal and cortical networks. |
| 192 | Team memory | Organizational Memory · Team Operations · AI Systems | The shared memory of a team: decisions, context, habits, handoffs, processes, preferences, and operating history. |
| 193 | Temporal attention | Psychology · Neuroscience · Time | Attention directed to when something happens or is expected to happen. |
| 194 | Temporal binding | Neuroscience · Psychology · Time | The process by which features, events, or actions are linked together in time as part of one remembered experience. |
| 195 | Temporal compression | Psychology · Literature · Time | The subjective or narrative shortening of remembered time, often making long periods feel condensed. |
| 196 | Temporal context | Psychology · Cognitive Science · Time | Time-related background that helps situate and retrieve memory, such as recency, order, period, or phase of work. |
| 197 | Temporal continuity | Cognitive Science · Philosophy · AI Systems | Continuity across time: the sense or system property that past, present, and future states belong to an ongoing identity, task, or process. |
| 198 | Temporal cue | Psychology · Information Retrieval · Time | A time-related signal, such as date, season, sequence, or recency, that helps retrieve memory. |
| 199 | Temporal decay | Psychology · Cognitive Architecture · Time | A decrease in memory availability as time passes without reinforcement, retrieval, or continued relevance. |
| 200 | Temporal discounting | Psychology · Behavioral Economics · Time | The tendency to value nearer rewards or consequences more strongly than distant ones; relevant to learning, planning, and remembered outcomes. |
| 201 | Temporal distance | Psychology · Cognitive Science · Time | The perceived or actual distance between now and a remembered or anticipated event. |
| 202 | Temporal drift | AI Systems · Organizational Memory · Time | Change in context, meaning, or usefulness over time that can make old memory less accurate or less relevant. |
| 203 | Temporal landmark | Psychology · Team Operations · Time | A memorable date, event, milestone, or transition used to organize time and retrieve related memories. |
| 204 | Temporal order memory | Psychology · Time | Memory for the order in which events, items, or actions occurred. |
| 205 | Temporal resolution | Neuroscience · Computer Science · Time | The granularity at which time is represented or measured in perception, memory, data, or system logs. |
| 206 | Temporal tagging | AI Systems · Organizational Memory · Time | Attaching time metadata such as date, sequence, period, freshness, or expiry to a memory. |
| 207 | Time horizon | AI Systems · Team Operations · Time | The span of time a memory, plan, decision, or system behavior is expected to remain relevant. |
| 208 | Time perception | Psychology · Neuroscience · Time | The subjective or neural processing of duration, order, rhythm, and temporal passage. |
| 209 | Timeline memory | Team Operations · Organizational Memory · Time | Memory organized as a sequence of events, decisions, incidents, or milestones over time. |
| 210 | Timestamp | Computer Science · AI Systems · Time | A recorded time marker that anchors an event, memory, state change, or document in time. |
| 211 | Transactive memory | Organizational Memory · Psychology | A group memory system in which members know who knows what and coordinate around distributed expertise. |
| 212 | Tribal knowledge | Organizational Memory · Team Operations | Important know-how that lives informally in people rather than in durable, accessible, governed records. |
| 213 | Unconscious | Psychology · Psychoanalysis · Neuroscience | Mental or neural processes outside conscious awareness; the meaning varies across psychoanalysis, psychology, and neuroscience. |
| 214 | Vector database | Computer Science · AI Engineering | A store optimized for similarity search over embeddings. |
| 215 | Working agreement | Organizational Memory · Team Operations | A shared understanding of how a team chooses to work together, including norms, responsibilities, rituals, and decision rules. |
| 216 | Working memory | Cognitive Psychology · Neuroscience | Information actively held for current reasoning or action. |
| 217 | Working-session memory | AI Systems · Team Operations · Time | Short-horizon memory that preserves context within an active work session but should not automatically become durable memory. |
Fields that study memory
| Field | How it deals with memory |
|---|---|
| Anthropology | Cultural memory, ritual, oral tradition, kinship, and historical transmission. |
| Architecture | Memory in place, monuments, ruins, memorials, and spatial experience. |
| Archival science | Preservation, appraisal, provenance, access, retention, and long-term stewardship of records. |
| Artificial intelligence | Agent memory, RAG, continual learning, personalization, world models, and benchmarks. |
| Art history | Memory in images, monuments, preservation, iconography, and cultural inheritance. |
| Biology | Cellular memory, immune memory, epigenetic memory, development, and adaptation. |
| Cognitive psychology | Encoding, recall, recognition, attention, working memory, episodic memory, and semantic memory. |
| Cognitive science | Interdisciplinary study of mind, learning, language, reasoning, and behavior. |
| Computer science | Storage, caches, state, databases, retrieval systems, persistence, and distributed memory. |
| Cultural studies | Cultural memory, media, identity, power, representation, and public remembrance. |
| Design and HCI | User memory, interface recall, context preservation, personalization, and continuity across tools. |
| Education and learning science | Retention, practice, spaced repetition, skill acquisition, and forgetting curves. |
| Film and media studies | Flashback, archive, repetition, point of view, montage, and cultural memory. |
| History | Records, testimony, archives, memorialization, interpretation, and contested pasts. |
| Information retrieval | Querying, ranking, relevance, indexing, search, and retrieval evaluation. |
| Law | Witness memory, testimony, evidence, precedent, recordkeeping, privacy, and the right to be forgotten. |
| Library and information science | Archives, preservation, classification, retrieval, metadata, and institutional knowledge. |
| Linguistics | Language acquisition, discourse, semantic association, narrative, and recall. |
| Machine learning | Continual learning, catastrophic forgetting, sequence memory, recurrent models, and retrieval-augmented systems. |
| Literature | Memory as narrative, identity, trauma, nostalgia, time, and unreliable recollection. |
| Music | Musical memory, motif, repetition, embodied recall, oral transmission, and emotional memory. |
| Neurobiology | Cellular and molecular mechanisms of memory, including plasticity, consolidation, engrams, and adaptation. |
| Neuropsychology | Memory impairment, amnesia, dementia, brain injury, trauma, and clinical assessment. |
| Neuroscience | Biological mechanisms of formation, consolidation, retrieval, forgetting, plasticity, and the hippocampus. |
| Organizational theory | Institutional memory, knowledge transfer, process memory, decision history, and governance. |
| Performance studies | Embodied memory, rehearsal, ritual, repetition, oral transmission, and live reenactment. |
| Philosophy | Memory, identity, continuity of self, truth, testimony, perception, and personal history. |
| Psychiatry | Memory in trauma, dissociation, depression, PTSD, addiction, and identity. |
| Religious studies | Ritual memory, scripture, oral transmission, remembrance, and identity across generations. |
| Sociology | Collective memory, institutional memory, social forgetting, archives, and public narratives. |
| Systems neuroscience | Memory as network-level coordination across brain regions, circuits, rhythms, and behavior. |
Category vocabulary
- Organic memory — Memory that forms from activity rather than manual note-taking or explicit database entry.
- Living memory — Memory that strengthens, weakens, associates, and adapts over time.
- Emergent memory — Memory that arises from interactions among experience, retrieval, behavior, and learning.
- Context of Reality (CoR) — The operational picture a system uses to decide what is true enough, current enough, authorized enough, and relevant enough to act on.