Abstract
Popular psychology often treats personality types as labels: four letters and a number seem enough to know someone. Yet questionnaires often capture only what respondents want to show, or believe about themselves, rather than what actually drives them.
This article goes one level deeper, bringing Jungian cognitive functions and the Enneagram into a shared language of “energy dynamics” to explain why the systems overlap in some respects yet often conflict in questionnaires.
There are two central proposals. First, the diagram's central 3–6–9 equilateral triangle represents personalities anchored in external systems, shaped by large social institutions. Second, the outer 1–4–2–8–5–7 sequence—the repeating digits in 1 ÷ 7 = 0.142857…—describes the movement of instinctual energy between abundance and displacement across centers. The first explains attachment to institutions; the second explains motivation from within.
Node colors show the energy centers: green for gut, orange for heart and gold for head.
Position and limitations. This is an interpretive theoretical model, not a psychometrically validated scale. Every “type ≈ function” relationship describes a tendency. Classifications of historical figures and fictional characters illustrate concepts through typological interpretation; they are neither biographical conclusions nor clinical diagnoses.
1. Method and theoretical limits
1.1 Definitions rather than destiny
Before discussing mappings, we should correct a common reversal of cause and effect. Type theory does not say that a particular childhood trauma inevitably produces a particular type. It defines a type by patterns of energy imbalance, defenses and perceptual preferences. A type describes how someone operates now, rather than why they can only be that way.
Online questionnaires likewise provide rough coordinates. Respondents may idealize themselves, misunderstand questions or answer as their ideal self. Our test is no exception: it offers a starting point, while identification requires examining motivation and defenses themselves.
1.2 Tendencies (≈) and the probability multiplication trap
Where this article says “Type 2 corresponds to Fe,” read “Type 2 ≈ Fe.” Psychology and sociology offer tendencies of varying strength rather than equations in the physical sense.
Why this restraint? Consider an illustrative calculation, not measured statistics. Assume each layer of judgment is independent and 90% accurate. Requiring every layer to be correct reduces the combined rate to 0.9 × 0.9 = 81% after adding a second concept, such as wings; a third gives 72.9%, and five layers give less than 60%. This only shows that joint accuracy may decline under independence. Actual judgments are often correlated, so this multiplication cannot directly estimate real accuracy or prove that wings or subtypes are invalid.
This is why the model follows Occam's razor: use fewer dimensions, while requiring each retained dimension to explain enough.
1.3 Theoretical roots: from Gurdjieff to Riso
The diagram's geometry comes from G. I. Gurdjieff. According to P. D. Ouspensky, it combines the Law of Three and the Law of Seven: a triangle connects 3, 6 and 9, while the repeating decimal 0.142857… from dividing 1 by 7 determines the other six points' sequence. This geometry is the starting point for interpreting the two paths as distinct psychological structures.
Oscar Ichazo associated the nine points with nine passions, adding fear and vanity to the traditional seven deadly sins. Psychiatrist Claudio Naranjo encountered Ichazo's system in the 1970s and redescribed the nine characters in clinical language. His Character and Neurosis (1994) remains one of the more rigorous references.
Drawing on Jung's Psychological Types (1921), Naranjo's character descriptions and Riso's Personality Types (1987), this article proposes a mapping for discussion. Their models differ. The function mapping below is this site's interpretive hypothesis, not any author's original table or a validated statistical relationship.
Starting with Jung's functions and Naranjo's passions, this model proposes its own mechanisms: Fe/Te for Type 3, Ne/Se for Type 8 and Se/Ne for Type 7. These additions support self-observation and discussion, but still need independent testing.
1.4 Two concepts to reconsider: wings and integration/disintegration
Wings. Wings became popular largely through Riso's writing. In this model they are not the personality's core; they serve more as a filter against mistyping, such as confusing 4w5 with Type 5 or 4w3 with Type 3. Naranjo's 27 instinctual subtypes explain the fuller shape of behavior (see Section 6).
Integration and disintegration. Popular Enneagram theory gives these directions moral meanings: integration means progress and disintegration decline. That binary does not withstand scrutiny.
- Type 5 moving toward Type 8 is traditionally called integration. Yet someone with exceptional abstract ability who forces a theory onto reality with an Eight's will may produce harmful consequences. Karl Marx is often read as an extreme example: his ideas created extraordinary historical upheaval accompanied by substantial real-world costs.
- Type 5 moving toward Type 7 is traditionally called disintegration. Pleasure-seeking can bury intellectual gifts, but it can also teach an overly cerebral person disconnected from the body how to experience ordinary life.
Integration and disintegration are better understood as homeostasis: ways of compensating for gaps at different stages, rather than a one-way moral ladder.
2. Three centers × three states
Traditionally, the nine types belong to three centers: gut (8, 9, 1) concerns instinct, will and boundaries; heart (2, 3, 4) concerns emotion, identity and being seen; head (5, 6, 7) concerns thought, prediction and security. This model adds another coordinate: energy in each center can occupy one of three states.
- Abundance: excess energy in the center expresses itself directly outward.
- Displacement: depleted or suppressed energy moves toward another center for compensation.
- Confusion: disordered energy cannot anchor itself and relies on external systems.
| Energy center | Abundance | Displacement | Confusion |
|---|---|---|---|
| Gut (instinct) | Type 8 ≈ Ne (primary) / SeExpanding will, breaking old boundaries | Type 1 (gut → heart) ≈ TeSuppressing instinct, sublimating it into standards | Type 9 ≈ SiFollowing inertia, forgetting oneself |
| Heart (emotion) | Type 2 ≈ FeEmotional entitlement and outward giving | Type 4 (heart → head) ≈ NiWounded identity, retreat into inner insight | Type 3 ≈ Fe / TeAn identity vacuum filled by achievement |
| Head (thought) | Type 5 ≈ TiIntellectual avarice, energy drawn into thinking | Type 7 (head → gut) ≈ Se (primary) / NeEscaping emptiness through experience | Type 6 ≈ FiInternalizing axioms, defending through belief |
An interesting symmetry appears: the three states divide the numbers into 2–5–8, 1–4–7 and 3–6–9. These groups match Riso and Hudson's object-relations triads and can be compared with them, although their names refer to early relationships while ours refer to energy states.
The three confused types form the central triangle; the other six form the outer path. The next two sections explain each.
3. The 3–6–9 socialization triangle: institutions and external anchoring
Types 3, 6 and 9 share a disordered center. Instead of anchoring themselves internally, they rely on external social systems for survival and psychological stability. The model hypothesizes that these are three common adaptations to large organized societies, and thus especially likely to be seen as “normal.”
Type 3: living for others' eyes
Type 3 belongs to the heart center, but its energy is disordered: genuine feelings and identity are unclear. External evaluations offer the most convenient material to fill this vacuum, so the person becomes a product that the market will approve.
This has two expressions in the function framework. With extraverted feeling (Fe), the person is acutely sensitive to group reactions and shapes an expected image. With extraverted thinking (Te), they efficiently reach socially recognized targets: qualifications, position, income and titles. This model borrows the language of two extraverted judging functions as an analogy for motivation; it does not imply every Three has the same dominant cognitive function.
Vanity here means using others' gaze as proof of existence, rather than simply liking good looks. Many Enneagram authors observe that modern commercial society, with its performance and self-marketing demands, has a strong Type 3 character. When institutions reward this operation, it becomes hard to recognize as a problem.
Type 6: courage as the foam of faith
Fear is one of Ichazo's two additions to the seven deadly sins. Its role invites reflection: fear becoming a character's core may itself be a product of civilization, as individuals confronting vast divisions of labor and unpredictable power need lasting psychological strategies.
Type 6's head energy cannot anchor itself: each thought can be overturned by the next, with no end to doubt. To stop this loss of control, the person stops questioning fundamental premises and takes an external support—authority, an organization, tradition or an ideology—internalizing it as an unshakable belief.
This resembles introverted feeling (Fi): subjective, firm value judgments repeatedly confirmed until they become internal principles. Jung described introverted feeling types as usually quiet, yet capable of almost heroic action when hidden emotion breaks through. Here, a Six's courage is likened to foam on faith: they face the world because they reaffirm their beliefs internally every day. If that pillar falls, courage falls with it.
Thus Sixes are often recognized as the institution's intelligent people: professionally capable, aware of boundaries and loyal to the organization. Zhou Enlai is often cited as an illustration of this temperament. The difference from Five concerns direction rather than intelligence: Five dismantles premises; Six protects them, often instinctively disliking thought that overturns the underlying framework.
Type 9: industrious self-forgetting
Type 9 belongs to the gut center yet struggles to feel instinct: the direct signals of what they want and do not want are blurred. To preserve peace, they merge with important people or their environment through confluence, adopting others' goals as their own.
The Nine's sloth does not mean laziness. The term is closer to spiritual inertia or self-forgetting. Nines are often industrious, willing to perform repetitive, demanding work year after year; following routine avoids facing both the unknown and themselves.
This fits Jung's account of introverted sensation (Si). Si does not merely record external stimuli; those stimuli awaken a deeper, older background within the subject, as though an ancient consciousness were observing. This model interprets that background as two layers: evolved risk-avoidance, such as instinctive unease about heights, darkness and blood, and crystallized personal experience, as in fearing ropes after a snakebite. Together they favor familiar tracks and resist risk and upheaval. Through this inertia, Nine builds a cocoon against disturbance.
4. The 1–4–2–8–5–7 cycle of inner motivation
The outer six types do not hand themselves over to institutions. Abundant types 2, 5 and 8 alternate with depleted, displaced types 1, 4 and 7, with motivation arising internally. We follow the sequence 1 → 4 → 2 → 8 → 5 → 7.
Type 1: suppressed instinct, elevated standards
Type 1 also belongs to the gut center but suppresses instinct, holding down “animal” impulses and redirecting energy toward the heart in pursuit of moral legitimacy and honor.
Anger here is sustained dissatisfaction rather than a quick temper: dissatisfaction with laxity, carelessness and decline, first in oneself and then in the world. Distrusting instinct, the person needs objective external standards—rules, systems, procedures and correction—to take over. This is the territory of extraverted thinking (Te). Puritan ethics, emphasizing discipline, law and self-examination, can be read as a cultural expression of this pattern.
Stalin is often used as a historical illustration. A widely repeated story claims that during World War II he refused to exchange a captured German field marshal for his captured son. Its details remain disputed by historians, but it illustrates a paradox: uncompromising principle and control alongside personally austere discipline. Trotsky offers a contrast; if read as a Four who placed ideological purity above political reality, their conflict can also be interpreted as a clash of energy structures.
Type 4: a wounded heart moving into the head
Type 4's heart is wounded. Early neglect, loss or unequal treatment can undermine the basic identity of being loved and valuable. With heart energy depleted, it moves into the head, developing abstract ability beyond what is typical of heart-centered types.
Popular tables often equate Four with introverted feeling (Fi); this model does not. Four shares Five's abstract ability but is less detached, profoundly rejecting prevailing social order and worldly values. This rejection can dull perception of the material world, even producing numbness to bodily needs and pain—the pattern of dominant introverted intuition (Ni) with very weak extraverted sensation (Se).
Ni offers insight: seeing the form behind things in an instant, without step-by-step reasoning. Fours often show this ability. Yet unusual understanding combined with practical helplessness and persistent inferiority can produce compensatory grandiosity: believing oneself destined to be exceptional to ward off inner emptiness. Envy is the other side; others' apparently effortless wholeness represents what the person feels they lack.
Type 2: the entitlement to be loved
Type 2 has abundant heart energy and is a characteristic provider of emotional support, understanding others' needs and willingly responding. This corresponds to extraverted feeling (Fe).
The key is the meaning of pride. It is not surface arrogance, but an unconscious emotional entitlement: “Everyone should naturally love me.” Seeing oneself as a source of love makes giving without counting costs possible. Consciously, this becomes an assumed reciprocal contract: “I am so good to everyone that they should love and treat me well.”
When the contract fails, entitlement appears. Without the expected warm response, Two feels not merely disappointed but that an order has been violated. Warmth can turn rapidly to resentment, giving to emotional demands. This does not deny generosity; it exposes an unexamined premise behind it.
Type 8: will driven by vision
Type 8 represents extreme abundance of gut energy: vitality and will expand outward, resisting every limit. Lust here means a craving for intensity—more, fuller, immediately—although some Chinese translations render it as sexual desire.
Popular accounts depict Eight as a muscular tough person and associate it with extraverted sensation (Se). Physical strength has limits, however, and cannot explain certain characteristic examples. Franklin D. Roosevelt had paralysis of his lower limbs from age 39, yet won four presidential elections and greatly expanded federal and presidential power. Sensory toughness plainly was not what sustained him.
This model uses extraverted intuition (Ne) to describe part of Eight's motivation; it is the site's hypothesis. Jung's extraverted intuitive is no naive dreamer: emerging possibilities attract them beyond the restraint of reason or feeling. Concern for others' welfare can be weak, with morality consisting in loyalty to their own vision. An analogy is a pedestrian eating while walking, unconcerned with either the ants fed by falling crumbs or those crushed underfoot.
In fiction, Eren Yeager in Attack on Titan is an extreme illustration: willing to flatten the world for the freedom he envisions. Historically, Mao Zedong, mobilizing masses against established bureaucracy, is also often read as Eight, relying on will above institutional procedure. Gut abundance can also appear as direct command over material conditions and immediate situations, so the model retains Se as another aspect of Eight.
Type 5: avarice for understanding
Type 5 has abundant head energy, with vitality almost entirely drawn into thought. Avarice here is unrelated to accumulating wealth: material life is often simple, economical or casual, because luxury cars and homes seem to cost more than their value.
What Five craves is understanding: underlying laws, frontier knowledge and complete systems. This resembles introverted thinking (Ti), which uses a self-built logical framework without needing outside endorsement. Liu Cixin's short story The First Universal Principle, about scientists exchanging their lives for the universe's ultimate answer, offers a literary image of this intellectual avarice. Five's confidence often rests on having genuinely thought more deeply, but the same reason suggests that treating others equally minimizes friction, so overt showing off is uncommon.
A characteristic speaking style might be called “real-time rendering.” Elon Musk's public speech, for example, includes long pauses and mid-sentence restarts that may be mistaken for poor expression. Another reading is that the speaker is translating a three-dimensional model into linear language on the spot, rather than retrieving prepared phrases. This is an observation about speech, not a personality diagnosis; it reminds us that fluency and depth differ.
Type 7: consumption that will not stop
Type 7 belongs to the head center but avoids dwelling on serious questions, where deep reflection may encounter emptiness and pain. Energy sinks toward the gut, becoming a pursuit of pleasure, novelty and practical benefits. Gluttony names this endless consumption of opportunities, stimulation, plans and experiences, one after another, to avoid stopping.
Seven's perceiving function becomes clearer at subtype level. Self-preservation and social Sevens are grounded in reality: the former excels at benefits and enjoyment; the latter enjoys practical service and participation. Both strongly resemble extraverted sensation (Se). One-to-one Seven dreams of romance and unknown adventures, resembling extraverted intuition (Ne). With the same Ne, however, Eight breaks orders while Seven wanders and delights itself.
Seven is often mistakenly seen as naive or unintelligent. It can have exceptional improvisational ability and survival instinct while avoiding institutionally approved routes. Naruto Uzumaki in Naruto and Seong Gi-hun in Squid Game illustrate intelligence outside that framework. Here Seven resembles Five: both refuse to let external authority define their intelligence.
5. The unified map
The preceding discussion in one table. “≈” reminds us that these are tendencies.
| Path | Type | Center and state | Passion | ≈ Functions | Core mechanism |
|---|---|---|---|---|---|
| 3-6-9 External anchoring | 3 | Heart · confusion | Vanity | Fe / Te | An identity vacuum filled with externally approved achievement |
| 6 | Head · confusion | Fear | Fi | Giving up fundamental doubt, internalizing external axioms as belief | |
| 9 | Gut · confusion | Sloth | Si | Following inertia and merging, forgetting personal desires | |
| 1-4-2-8-5-7 Inner motivation | 1 | Gut → heart · displacement | Anger | Te | Suppressing instinct, correcting self and world through objective standards |
| 4 | Heart → head · displacement | Envy | Ni | Wounded identity, retreat into inner insight and distance from reality | |
| 2 | Heart · abundance | Pride | Fe | Giving based on the premise of being entitled to love | |
| 8 | Gut · abundance | Lust | Ne (primary) / Se | Expanding will, breaking established orders for a vision | |
| 5 | Head · abundance | Avarice | Ti | Material simplicity and an endless thirst for understanding | |
| 7 | Head → gut · displacement | Gluttony | Se (primary) / Ne | Escaping seriousness and pain through experience and practical benefits |
6. A third dimension: 27 instinctual subtypes
The type–function mapping is only a skeleton. Explaining why people of the same type look so different requires a third dimension: instinctual subtype. Following Ichazo's framework, Naranjo proposed that each passion combines with self-preservation (Sp), social (So) or one-to-one (Sx) instinct to form a recognizable character, producing 27 in total.
Retaining subtypes while downgrading wings returns to Section 1.2's multiplication issue: subtypes change where motivation is directed and offer substantial explanation, while wings mostly alter outward appearance. Seven illustrates this: without subtypes, we cannot explain why some Sevens are intensely practical and others live in dreams.
Subtypes also reveal countertypes that least resemble their type: an apparently unproud self-preservation Two, an unvain self-preservation Three or an unafraid one-to-one Six. This model proposes that self-preservation conflicts with the heart, one-to-one with the head, and social with the gut; conflict reverses the passion's expression. This heuristic fits eight of the nine types, with One the exception.
| Type · passion | Self-preservation Sp | Social So | One-to-one Sx |
|---|---|---|---|
| 1 · anger | Worry | Non-adaptability | ★ Zeal |
| 2 · pride | ★ Privilege | Ambition | Conquest |
| 3 · vanity | ★ Security | Prestige | Attractiveness |
| 4 · envy | ★ Tenacity | Shame | Competition |
| 5 · avarice | Castle | Totem | ★ Confidence |
| 6 · fear | Warmth | Duty | ★ Strength |
| 7 · gluttony | Family | ★ Sacrifice | Suggestibility |
| 8 · lust | Satisfaction | ★ Solidarity | Possession |
| 9 · sloth | Appetite | ★ Participation | Union |
The keywords come from Ichazo and Naranjo; ★ marks a countertype.
Read the overview and complete guides to all 27 subtypes →, or select a keyword above for everyday patterns, commonly confused types and growth directions.
7. Cultural scripts and historical minorities
7.1 The 3–6–9 triangle and cultural scripts
Three, Six and Nine are three ways of relying on external systems, and societies tend to reward different ones. Here we discuss institutional incentives and mainstream cultural scripts—behaviors encouraged or considered mature—rather than individual personalities. All nine types exist in every society; inferring someone's type from nationality misuses this analogy.
- The Type 3 script is particularly visible in American success narratives: self-marketing skills and measuring personal worth through visible achievements.
- The Type 9 script is often observed in Japanese society: harmony, appropriate restraint, tacitly reading the room and a craft ethic of finding one's place through daily refinement.
- The Type 6 script has deep roots in Chinese society: historical memories of disorder, valuing reliable order and collective protection, and emphasizing loyalty and positions.
These analogies remind us that a result of Three, Six or Nine may sometimes reflect the role an environment demands rather than a person's core.
7.2 The 1–4–2–8–5–7 cycle and historical minorities
Systems maintained by Three, Six and Nine excel at continuity rather than changing course. When they stagnate, outer-circle types may break the deadlock because their internal motivation is less governed by institutional rewards: Eight overturns an order with will, Five redraws the map through thought, and One establishes a new order through discipline.
These are descriptions of psychological motivation, not judgments of historical merit. Breaking a deadlock can bring liberation or disaster. Typology can describe how someone is driven; it cannot endorse their actions.
8. How to use this model
If you have just taken our test, treat the result as a hypothesis to examine with these three steps.
- Ask about motivation before behavior. Working intensely may seek approval for Three, correctness for One, inclusion for social Nine or proof of endurance for self-preservation Four. Compare Sections 3 and 4; look for the passion that feels accurate and slightly uncomfortable, rather than flattering.
- Cross-check with another system. Compare whether Enneagram motivations and function preferences describe different aspects. A mismatch with this article's mapping does not invalidate a test result or prove a persona. Return to concrete experience, then examine the limits of both questionnaire and model.
- Look at subtypes last. After identifying a type, read its three subtypes, paying attention to the countertype. Many longstanding mistypes arise from belonging to the subtype that seems unlike its type.
Whatever the result, it describes a habit rather than a verdict. Seeing that habit makes it possible to act differently.
9. Frequently asked questions
Why do my MBTI and Enneagram results seem contradictory?
The systems focus on different aspects, and questionnaires are affected by interpretation, context and self-image. Inconsistency cannot directly establish a persona. This site's model offers examples: Three may answer as Eight or ENTJ to meet an expectation of strength; Six may identify as Five to gain intellectual security. Either system can capture a presented image, and the two images may differ. Rather than simply retesting, ask what motivates an action and what it tries to avoid.
Why emphasize Ne for Eight when Se is the usual association?
Equating Eight with Se often comes from the behavioral association of toughness with action. Sensory and physical strength have limits and cannot explain Eights who shake an entire order through vision and will. Jung's extraverted intuitive, pursuing possibilities beyond reason and feeling while remaining loyal to a vision, seems closer to that core. This is an interpretive choice, not an empirical conclusion. Se remains a secondary aspect, especially in self-preservation Eight.
What is a “pseudo-Five,” and how do Five and Six differ?
A “pseudo-Five” is a Six identifying with Five's image, particularly among people drawn to theory and analysis. Both think, but in opposite directions. Five seeks personal understanding, can question any premise and does not require agreement. Six seeks security, tends to cite authority and consensus, and is uneasy when basic frameworks are shaken.
Ask three questions: if my conclusion conflicts with a trusted authority, whom do I doubt first? Do I collect knowledge from curiosity or preparedness? Am I comfortable or anxious holding a view nobody else accepts?
Doesn't Four correspond to Fi? Are all INFPs Fours?
This popular mapping is not adopted here. Four's abstraction, dulled perception of reality and reliance on sudden insight fit introverted intuition (Ni) better in this model; introverted feeling's (Fi) loyalty to internalized values corresponds to Six. INFP and Four results may coincide because both questionnaires ask about uniqueness and emotional depth. All these mappings remain tendencies rather than rules.
Which matters more, wings or subtypes?
Subtypes. Wings describe the coloring of neighboring types and mainly help avoid mistyping. Subtypes identify which instinct combines with the passion, changing the destination of motivation; three subtypes can look markedly different. If adding just one dimension, examine subtypes.
Does integration always mean improvement and disintegration decline?
No. These directions are compensatory paths rather than a moral ladder. Five toward Eight may put ideas into action or force theory onto reality. Five toward Seven may escape, or finally learn to eat, play and live beyond overthinking. The direction itself is neither good nor bad; what it compensates for matters.
Are the eight functions the same as MBTI's four letters?
They are related but different. In 1921 Jung described eight psychological types named for dominant functions, such as introverted thinking, and discussed auxiliary functions. MBTI developed later as a questionnaire; its four letters encode a function arrangement, for example Ni dominant and Fe auxiliary for INFJ. This site's Jungian test measures the relative strength of eight functions directly rather than first measuring four dichotomies.
Is this model scientifically supported?
The honest answer is: only to a limited extent. Both the Enneagram and Jungian functions have insufficient empirical support in academic psychology, with reliability and validity often questioned; mainstream personality research uses the Big Five. This is an interpretive framework offering language for motivations and defenses to support observation. It cannot diagnose and should not be used to judge others.
References and statement
For the subtype concept, see Beatrice Chestnut's explanation of instinctual subtypes. The following books provide theoretical background; this site's energy-center and function mapping remains an independent interpretation.
- Jung, C. G. (1971). Psychological Types(Collected Works of C. G. Jung, Vol. 6). Princeton University Press. (Original work published in 1921.)
- Naranjo, C. (1994). Character and Neurosis: An Integrative View. Gateways/IDHHB.
- Naranjo, C. (2012). 27 personajes en busca del ser. Ediciones La Llave.
- Riso, D. R. (1987). Personality Types: Using the Enneagram for Self-Discovery. Houghton Mifflin.
- Riso, D. R., & Hudson, R. (1999). The Wisdom of the Enneagram. Bantam Books.
- Ouspensky, P. D. (1949). In Search of the Miraculous: Fragments of an Unknown Teaching. Harcourt, Brace.
- von Franz, M.-L., & Hillman, J. (1971). Lectures on Jung's Typology. Spring Publications.
- Chestnut, B. (2013). The Complete Enneagram: 27 Paths to Greater Self-Knowledge. She Writes Press.
Disclaimer. This site's personality models and tests are for personal exploration, theoretical discussion and nonclinical reference. They do not provide medical diagnoses, psychotherapy recommendations or psychiatric clinical evidence. For concerns about physical or mental health, consult a qualified psychologist or medical professional.