A reference for the technical vocabulary used across this site. Terms are grouped by topic and each has a direct anchor link for use in cross-references.
Model A
Model A
The structural model of a Socionics type, developed by Aushra Augusta. Each type is described by a fixed arrangement of eight information elements across eight function positions. The model defines not just which functions a type uses, but how strongly, consciously and confidently each one is used. Named after Augusta's first initial. See the full Model A page →
Function position
One of eight slots in Model A, each with a defined role. The eight positions are: Leading, Creative, Role, Vulnerable, Suggestive, Mobilising, Ignoring and Demonstrative. The same information element placed in different positions produces different types with different psychological profiles.
Ego block
The first two positions in Model A: the Leading and Creative functions. The Ego block contains a type's strongest, most conscious and most confident functions — the mode of engagement with the world that feels most natural and requires the least effort.
Super-Id block
The fifth and sixth positions in Model A: the Suggestive and Mobilising functions. The Super-Id block contains a type's areas of greatest need — the functions they value most in others and find most difficult to produce reliably themselves. The Dual relationship is defined by one type's Ego block matching the other's Super-Id block.
Super-Ego block
The third and fourth positions in Model A, containing the Role and Vulnerable functions. The area of greatest tension — functions the type is aware they should use but find effortful and unreliable.
Id block
The seventh and eighth positions in Model A: the Ignoring and Demonstrative functions. Strong but background functions — used when necessary, not foregrounded.
Mental and vital rings
→ Model A: the seven characteristics
The two halves of Model A. The mental ring (positions 1 to 4) holds the functions whose information you keep in focus on your own and talk about unprompted; the vital ring (positions 5 to 8) only gets your attention when something outside directs it there, and shows more in action than in speech. Not the same as conscious and unconscious in the psychological sense.
Verbal and laboral functions
The name R.K. Kovalenko and N.A. Zvonaryova use for the split usually called valued and non-valued. Verbal functions (positions 1, 2, 5 and 6) carry few social boundaries: you will talk and joke about them with anyone. Laboral functions (3, 4, 7 and 8) come with social rules, and you engage freely only once trust is there. More →
Inert and contact functions
Inert functions (positions 1, 4, 6 and 7) try to account for a lot of detail, warm up slowly and are sensitive to criticism; contact functions (2, 3, 5 and 8) aim for the minimum detail needed, engage at once and share freely. One of the seven characteristics of a Model A position. More →
Dimensionality
A property, from A.V. Bukalov's work, that pairs the eight positions by how they learn: four-dimensional (1 and 8), three-dimensional (2 and 7), two-dimensional (3 and 6) and one-dimensional (4 and 5). The higher the dimension, the finer the gradations a function sees and the more it can adapt what it knows to a new situation. More →
Reinin cube
A way of picturing Model A with the eight positions on the corners of a cube. Opposite faces hold the mental and vital rings, the verbal and laboral functions, and the evaluative and situational functions. Used to picture intertype relations as two cubes meeting. See the cube →
Function positions
Leading function
Position 1 in Model A. The type's primary mode of engagement — strong, conscious, confident and valued. Also called the base or programme function. Defines the type's most natural contribution and the lens through which they instinctively interpret experience.
Creative function
Position 2 in Model A. The type's primary tool — used flexibly and creatively in service of the Leading function. Strong and conscious, but more adaptable than the Leading function. Also called the auxiliary function.
Role function
Position 3 in Model A. A function the type is conscious of but uses with effort and limited confidence. Often over-performed under social pressure — the type tries to demonstrate competence here, but it feels strained. Not a reliable resource.
Vulnerable function
Position 4 in Model A. The type's weakest and most sensitive function. Criticism directed at this function lands hard. The type typically avoids situations that demand it and is most likely to feel inadequate when it is exposed. Also called the point of least resistance or PoLR.
Suggestive function
Position 5 in Model A. The type's primary area of need — a function they value highly in others and find nourishing when it is provided. The type cannot reliably produce this function themselves, but they respond strongly and positively to it from others. Also called the base of the Super-Id or the dual-seeking function.
Mobilising function
Position 6 in Model A. The type's secondary area of need. Like the Suggestive function, it is valued in others and energising when present. The type can use it in bursts but cannot sustain it. Also called the activating function.
Ignoring function
Position 7 in Model A. A strong function that the type understands well but actively deprioritises. They are capable in this area but find it uninteresting compared to their Ego block functions. Also called the restrictive function.
Demonstrative function
Position 8 in Model A. A strong function used automatically and in the background — the type rarely talks about it or consciously draws on it, but it is present in their output. Also called the background function.
Information elements
Information element
One of eight aspects of reality that Socionics types process and value differently. Each element corresponds to a type of information about the world — possibilities, sensations, logic, feelings, and so on. Also called a function when describing its position within Model A. The eight elements are: Ne, Ni, Se, Si, Te, Ti, Fe, Fi.
Ne — Extraverted Intuition
→ Extraverted Intuition function page
Perception of possibilities, patterns and potential in the external world. Associated with generating ideas, spotting connections between unrelated things, and seeing how situations could develop. Types leading with Ne tend toward breadth over depth and find constraint frustrating. Full profile →
Ni — Introverted Intuition
→ Introverted Intuition function page
Perception of time, development and inner vision. Associated with long-range forecasting, sensing how things will unfold, and a felt understanding of trajectory. Types leading with Ni tend to be patient, unhurried and oriented toward the future rather than the present. Full profile →
Se — Extraverted Sensing
→ Extraverted Sensing function page
Perception of force, presence and physical reality in the external environment. Associated with decisiveness, willpower, spatial awareness and the ability to act under pressure. Types leading with Se tend to be direct, impactful and comfortable with confrontation. Full profile →
Si — Introverted Sensing
→ Introverted Sensing function page
Perception of internal physical states, comfort, aesthetics and the quality of immediate experience. Associated with attention to health, taste, atmosphere and the fine details of the present moment. Types leading with Si tend to value stability, comfort and sensory quality. Full profile →
Te — Extraverted Logic
→ Extraverted Logic function page
Perception of efficiency, factual information and how things work in practice. Associated with productivity, pragmatic decision-making and the organisation of external activity. Types leading with Te tend to be results-oriented and impatient with inefficiency. Full profile →
Ti — Introverted Logic
→ Introverted Logic function page
Perception of internal logical structure, consistency and classification. Associated with building conceptual frameworks, identifying contradictions and understanding how systems are organised. Types leading with Ti tend toward precision, taxonomy and principled analysis. Full profile →
Fe — Extraverted Ethics
→ Extraverted Ethics function page
Perception of the emotional atmosphere in a group or situation. Associated with expressing emotions openly, managing the mood of others and creating shared emotional experiences. Types leading with Fe tend to be emotionally expressive and attuned to the emotional environment. Full profile →
Fi — Introverted Ethics
→ Introverted Ethics function page
Perception of inner relational states — personal feelings, moral values and the quality of individual relationships. Associated with deep loyalty, personal ethics and a quiet but firm sense of what is right. Types leading with Fi tend to be selective in relationships and reserved in emotional expression. Full profile →
Dichotomies
Extraversion / Introversion
One of the four core Jungian dichotomies. In Socionics, Extraverted types lead with an extraverted information element (Ne, Se, Te or Fe) and are oriented toward changing and acting upon the external environment. Introverted types lead with an introverted element (Ni, Si, Ti or Fi) and are oriented toward adapting to and understanding their environment. Not equivalent to social confidence — an introverted type can be highly socially active.
Rationality / Irrationality
One of the four core Jungian dichotomies. Rational (also called Judging) types lead with a judging function — Logic or Ethics — and tend toward planning, structure and consistent behaviour. Irrational (Perceiving) types lead with a perceiving function — Intuition or Sensing — and tend toward flexibility, spontaneity and responsiveness to the moment. In Socionics notation: Rational types have a lowercase j suffix (e.g. INTj), Irrational types a lowercase p (e.g. ENTp).
Logic / Ethics
One of the four core Jungian dichotomies. Logic types (T) lead with a thinking function — Te or Ti — and prioritise impersonal, systemic analysis. Ethics types (F) lead with a feeling function — Fe or Fi — and prioritise interpersonal understanding and relational values. Neither is more intelligent or morally superior — they are different orientations toward what matters.
Intuition / Sensing
One of the four core Jungian dichotomies. Intuitive types (N) lead with an intuitive function — Ne or Ni — and are oriented toward abstract patterns, possibilities and meaning. Sensing types (S) lead with a sensing function — Se or Si — and are oriented toward concrete reality, the present moment and physical experience.
Jungian dichotomies
The four binary dimensions derived from Carl Jung's typological work that define the 16 Socionics types: Extraversion/Introversion, Intuition/Sensing, Logic/Ethics, and Rationality/Irrationality. Each type is defined by one pole of each dichotomy.
Judicious / Decisive
A Reinin dichotomy. Judicious types gather information until the picture feels complete before committing, and are comfortable holding a position open. Decisive types commit on the information available and push toward closure. One of only three Reinin traits that follow quadra lines: Judicious types are the Alpha and Delta Quadras, Decisive types Beta and Gamma.
Subjectivist / Objectivist
A Reinin dichotomy. Subjectivist types evaluate a situation against internal standards — what it means to them, or to the people in it. Objectivist types evaluate it against external ones — what can be measured, verified or applied universally. Follows quadra lines: Subjectivists are Alpha and Beta, the Quadras that value Ti and Fe; Objectivists are Gamma and Delta, which value Te and Fi. With Tactical/Strategic, one of the two least empirically settled of the eleven.
Aristocrat / Democrat
A Reinin dichotomy describing how types relate to group membership and norms. Aristocrats (Beta and Delta Quadras) tend to emphasise the importance of group membership and shared standards — in-group and out-group distinctions feel meaningful. Democrats (Alpha and Gamma Quadras) tend to evaluate individuals on their own merits regardless of group affiliation.
Process / Result
A Reinin dichotomy. Process types orient toward how something is done — the method, and the quality of the activity itself — and adjust their approach continuously as conditions change. Result types orient toward what is achieved, hold the goal fixed and push through obstacles, and tend to have a clearer internal sense of when something is finished.
Carefree / Farsighted
A Reinin dichotomy. Carefree types deal with situations as they arise and find elaborate advance planning unnatural. Farsighted types anticipate future states, prepare for contingencies and are more comfortable with a considered plan in place. Not a measure of reliability — a Carefree type can be entirely dependable.
Yielding / Obstinate
A Reinin dichotomy. Yielding types are responsive to social pressure and the expectations around them, adjusting their position or approach on relational signals. Obstinate types hold their position under the same pressure, and need a logical or evidential reason to shift rather than a relational one.
Static / Dynamic
A Reinin dichotomy. Static types perceive the world in terms of states and snapshots — how things are at a given moment. Dynamic types perceive the world in terms of processes and change — how things are moving and developing. Determined by the leading element: the static elements are Ne, Se, Ti and Fi; the dynamic ones are Ni, Si, Te and Fe. Equivalently, Static types are the extraverted irrationals and the introverted rationals.
Tactical / Strategic
A Reinin dichotomy. Strategic types hold a distant goal fixed and stay flexible about the means of reaching it. Tactical types hold their immediate course of action fixed and stay flexible about where it ultimately leads. With Subjectivist/Objectivist, one of the two least empirically settled of the eleven.
Constructivist / Emotivist
A Reinin dichotomy. Constructivist types read a situation through an impersonal lens first — what is being built, organised or achieved — and fit the relational dimension into that frame. Emotivist types read it through a relational lens first — the quality of the connection, the emotional register — and fit tasks into that. For a Constructivist a relationship exists in the context of what it is for; for an Emotivist a task exists in the context of the relationship it happens within.
Positivist / Negativist
A Reinin dichotomy. Positivists tend to describe things in terms of what is present and affirmed — they notice what exists. Negativists tend to describe things in terms of what is absent or denied — they notice what is missing. Neither is a measure of optimism or pessimism in the everyday sense.
Asking / Declaring
A Reinin dichotomy. Asking types communicate by posing questions, genuine and rhetorical alike, and treat information-gathering as an implicit exchange. Declaring types communicate by making statements, even where they are uncertain, and find a declarative mode more natural than an interrogative one.
Reinin dichotomies
Eleven additional binary dimensions of type, derived mathematically from the four Jungian dichotomies by Grigory Reinin — fifteen binary traits in total, since the Jungian four are themselves part of the same derivation. The eleven are Judicious/Decisive, Subjectivist/Objectivist, Aristocrat/Democrat, Process/Result, Carefree/Farsighted, Yielding/Obstinate, Static/Dynamic, Tactical/Strategic, Constructivist/Emotivist, Positivist/Negativist and Asking/Declaring, listed here in the order each type page carries them. Only the first three follow quadra lines; the other eight cut across all four Quadras, which is the usual source of surprise for readers who expect them to line up with existing groupings. More controversial than the core dichotomies — some are well-supported empirically, others less so. Full article →
Intertype relations
Intertype relation
One of 16 defined relationships between Socionics types, describing the characteristic dynamic that occurs when two given types interact. Each relation has a consistent psychological structure regardless of the individuals involved. The 16 relations range from Duality (most complementary) to Conflict (most incompatible). All relations →
Duality
The most complementary intertype relation. Duals have mutually completing Ego and Super-Id blocks — each type's strengths address the other's greatest needs. The relationship tends to feel natural and effortless. Most people recognise their Dual when they encounter them, even before knowing the theory. Full profile →
Activation
An intertype relation between types in the same Quadra who share rationality/irrationality but differ in extraversion/introversion and logic/ethics. Activators energise each other — the relationship is stimulating and positive, though can become overwhelming in close quarters. Full profile →
Mirror
An intertype relation between types who share the same Ego block elements but in reversed order — one type's Leading function is the other's Creative, and vice versa. Mirror partners understand each other's reasoning well but often reach different conclusions. Full profile →
Identity
An intertype relation between two people of the same type. Identical types understand each other completely — but precisely because they share the same strengths and blind spots, they cannot easily help each other where it matters most. Full profile →
Supervision
An asymmetric intertype relation. The Supervisor's Leading function hits the Supervisee's Vulnerable function, creating a dynamic where the Supervisee feels watched, corrected or judged — often without the Supervisor intending this effect. The relationship is not hostile but tends to create tension over time. Full profile →
Benefit
An asymmetric intertype relation. The Benefactor gives naturally and effortlessly to the Beneficiary — whose Suggestive function is addressed by the Benefactor's Creative function. The Beneficiary tends to ideralise the Benefactor. The feeling is not mutual in the same way. Full profile →
Conflict
The most incompatible intertype relation. Conflictors' Ego blocks directly clash — each type's strengths challenge the other's most sensitive areas. Prolonged interaction tends to be draining. Not impossible to manage, but requires conscious effort from both sides. Full profile →
Quasi-identity
→ Quasi-identity relation page
An intertype relation between types who use the same eight information elements but in a different order of priority. Quasi-identicals often reach similar conclusions by entirely different routes — and find each other's reasoning hard to follow despite superficial similarities. Full profile →
Small groups
Quadra
A group of four types who share the same set of valued functions — two extraverted and two introverted elements that the group collectively prioritises. There are four Quadras: Alpha, Beta, Gamma and Delta. Types within the same Quadra tend to share social values and feel most at ease with each other. Full profile →
Club
A group of four types sharing the same broad orientation — NT (Researchers), NF (Humanitarians), ST (Pragmatists) or SF (Socials). Club members share a general domain of interest but differ in Quadra values and relation dynamics. Full profile →
Temperament
A group of four types sharing extraversion/introversion and rationality/irrationality. The four Temperaments are: EP (Extraverted Irrational), EJ (Extraverted Rational), IP (Introverted Irrational) and IJ (Introverted Rational). Describes characteristic energy patterns and pace. Full profile →
Valued function
A function that a type actively seeks out and responds positively to — either because it is in their Ego block or their Super-Id block. Each type has four valued functions. The four valued functions of all types within a Quadra are the same, which explains the sense of shared values within a Quadra.
Small group
A set of four types who share three dichotomy poles, splitting the 16 types into four groups of four. The dichotomies allow exactly 35 such systems; a minority have names and interpretations. All 35 →
Romance style
Gulenko's four attitudes in close relationships: Careful, Infantile, Aggressor and Victim. Duals always pair Careful with Infantile or Aggressor with Victim. Kovalenko and Zvonaryova describe the same four groups as psychoanalytic groups.
Stress resistance group
How a type processes pressure and switches between tasks: Fragile, Viscous, Trainable or Flexible (Gulenko's vulnerable, frozen, trained and resistant to stress).
Implementation group
How a type turns ideas into working output: Perfectionists invent and refine a method, Finishers bring one product to a high standard, Implementers adapt what works, and Resultators scale it.
Planning style
How a type sets goals and handles time: Stable, Staged, Variant or Free. Useful for settling arguments about plans and deadlines.
Quasi-quadra
Two dual pairs from opposite quadras, held together by Quasi-Identity and Conflict: Phi, Omega, Chi and Psi. They describe what a type needs settled and what it will give up to get it, and are used for conflict resolution and negotiation.
Perception group
How a type takes in information best: Thorough, Circumstantial, Flexible or Receptive (Gulenko's distributive, dissociative, commutative and associative). Useful for choosing how to explain, instruct or teach.
Other terms
Augusta, Aushra
Lithuanian researcher (1934–2005) who developed Socionics in the 1970s, drawing on Carl Jung's typology, Antoni Kępiński's theory of information metabolism and her own original contributions. Her type was ILE. The system is named after the word "social" — Augusta's central interest was in the social dynamics between types rather than individual psychology in isolation.
Extratim / Intratim
The Socionics terms for Extraverted and Introverted types respectively. Used in formal type names — e.g. ILE is the Intuitive-Logical Extratim, LSI is the Logical-Sensory Intratim. Equivalent in meaning to Extravert/Introvert but specific to the Socionics tradition.
Information metabolism
The theoretical foundation of Socionics, drawn from the work of Polish psychiatrist Antoni Kępiński. The idea is that the psyche processes information from the environment in a manner analogous to how the body metabolises food — selectively, according to its own structure, extracting what it needs and disregarding what it cannot use. Each type has a characteristic pattern of information metabolism defined by its Model A.
Mask
When someone comes across, consistently, as a type other than their own, usually through identifying with a parent or someone close. Other people read the person by the mask, but the underlying type does not change.
Socionics vs MBTI
Socionics and MBTI both derive from Jung's original typology but developed independently and differ in important respects. The type codes look similar (INTj ≈ INTJ) but the underlying models are not equivalent — MBTI focuses on individual traits, Socionics focuses on information processing and intertype dynamics. Switching between the two using letter-matching produces unreliable results. The systems should be learned on their own terms.