In short: Human emotions are not uncontrollable inner chaos. Robert Plutchik (1980) identified 8 primary emotions — joy, trust, fear, surprise, sadness, disgust, anger, and anticipation — which combine to produce complex secondary emotions such as love, contempt, optimism, or nostalgia. Each primary emotion has three intensity levels (24 nuances in total) and fulfills a precise adaptive function inherited from evolution. This clinical guide details each emotion, its physiological manifestations, its combinations into dyads (primary, secondary, tertiary), and explains how CBT uses this mapping to improve emotional regulation.

All human emotions: complete guide to primary, secondary emotions and their dyads

How many emotions do you feel in an ordinary day? Most of my patients answer "three or four." When I present Plutchik's wheel to them for the first time, they realize they easily go through about twenty — without ever naming them. This inability to identify and differentiate one's emotions has a clinical name: alexithymia. It affects about 10% of the general population and constitutes a major risk factor for anxiety, depression, and relational disorders.

In my practice, I observe daily that the first step of any effective therapeutic work consists in giving precise emotional vocabulary to my patients. You cannot regulate what you cannot name. This guide aims to provide you with this complete mapping of human emotions, based on the work of Robert Plutchik, Paul Ekman, and Aaron Beck.

The 8 primary emotions according to Plutchik

In 1980, American psychologist Robert Plutchik proposed a psycho-evolutionist model of emotions which remains, forty-five years later, one of the most used frameworks in clinical psychology and CBT. His fundamental postulate: emotions are adaptive responses shaped by evolution, each serving a specific survival function.

1. Joy

Clinical definition. Joy is a positive emotional state characterized by a feeling of well-being, satisfaction, and fullness. It signals that our fundamental needs are met or that a significant goal has been achieved. Adaptive function. Joy reinforces behaviors that promote survival and reproduction. It consolidates social bonds, encourages exploration, and increases resilience in the face of future trials. Barbara Fredrickson (broaden-and-build theory) demonstrated that positive emotions broaden our attentional and behavioral repertoire. Physiological manifestations. Release of dopamine and serotonin, decrease in cortisol, slowing of heart rate, muscular relaxation, sensation of thoracic warmth. Facial expression (Ekman). Contraction of the major zygomatic muscle (smile), wrinkling of the eyes with activation of the orbicularis (Duchenne smile — the only reliable marker of authentic joy), raising of the cheeks. Typical duration. Variable — from a few seconds (burst of laughter) to several hours (diffuse feeling of happiness). Joy is the briefest positive emotion on average: the brain quickly adapts (hedonic adaptation).

2. Trust

Clinical definition. Trust is a feeling of relational security that allows accepting vulnerability with the other. It rests on the prediction that the other will act kindly and reliably. Adaptive function. Trust enables social cooperation, indispensable to the survival of the human species. Without trust, no group, no division of labor, no collective protection. Work on oxytocin (Zak, 2012) shows that this hormone facilitates interpersonal trust. Physiological manifestations. Release of oxytocin, decrease in amygdala activity, relaxation of abdominal muscle tension, deep and regular breathing. Facial expression. Direct but relaxed gaze, relaxed eyebrows, asymmetric micro-smile, slight head tilt (non-threat signal). Typical duration. Trust is more a state than a punctual emotion. It builds over weeks or months and can collapse in a few seconds (betrayal). Reconstruction takes significantly longer than initial construction.

3. Fear

Clinical definition. Fear is an emotional response triggered by the perception of imminent danger, real or imagined. It activates the sympathetic nervous system (fight-flight-freeze response) via the cerebral amygdala. Adaptive function. Fear is the survival emotion par excellence. It prepares the body to flee or fight by mobilizing energy resources. Without fear, the human species would not have survived Pleistocene predators. The problem arises when this response is triggered in the face of symbolic threats (social judgment, professional failure) with the same intensity as in the face of real physical danger. Physiological manifestations. Cardiac acceleration (up to 180 bpm in panic attack), release of adrenaline and cortisol, pupillary dilation, sweating, muscular tension, peripheral vasoconstriction (cold hands), digestive slowdown. Facial expression (Ekman). Raised and brought together eyebrows, raised upper eyelids (widening), horizontally stretched lips, slightly open mouth. Typical duration. Acute fear lasts 20 to 60 seconds (adrenaline peak). Anxiety (diffuse fear without precise object) can last hours, days, or even months. See our complete guide to anxiety in CBT to understand this distinction.

4. Surprise

Clinical definition. Surprise is the briefest emotional response, triggered by an unexpected event that violates our predictive schemas. It is neutral in valence: neither positive nor negative in itself, it quickly switches to another emotion according to cognitive evaluation of the event. Adaptive function. Surprise interrupts the current activity and orients all attentional resources toward the new stimulus. This rapid reorientation of attention allowed our ancestors to detect a hidden predator or a sudden opportunity. Physiological manifestations. Startle reflex: brief contraction of the trapezius, eye blinking, brief apnea followed by deep inspiration, brief cardiac acceleration. Facial expression (Ekman). Arched and raised eyebrows, wide-open eyes, mouth open in "O." This is the most universally recognized facial expression across cultures (recognition rate > 90%). Typical duration. The shortest of all emotions: 0.5 to 4 seconds. Beyond that, it transforms into another emotion (joy, fear, anger depending on context).

5. Sadness

Clinical definition. Sadness is an emotional state characterized by a feeling of loss, lack, or powerlessness. It signals that something precious has been lost or that a fundamental need is not met. Adaptive function. Contrary to popular belief, sadness is not dysfunctional. It fulfills three essential functions: (1) signal to those around a need for support (tears are a social call for help), (2) favor introspection and reassessment of priorities, (3) save energy after a loss to allow psychic reorganization. Sadness is the engine of grief — without it, no elaboration of loss. Physiological manifestations. Decrease in dopamine and noradrenaline, psychomotor slowdown, fatigue, thoracic oppression, tight throat, tears (release of leucine-enkephalin, a natural analgesic). Facial expression (Ekman). Lowering of the inner corners of the eyebrows (corrugator muscle), lowering of the labial commissures, downcast gaze, drooping eyelids. Typical duration. Sadness is the emotion that lasts longest — on average 120 hours (5 days) according to the study by Verduyn and Lavrijsen (2015), versus 30 minutes for anger. When it exceeds two consecutive weeks with impaired functioning, it is called major depressive episode.

6. Disgust

Clinical definition. Disgust is an intense aversive response triggered by a stimulus perceived as contaminating or morally repugnant. There is physical disgust (spoiled food, body odors) and moral disgust (injustice, betrayal, behaviors judged immoral). Adaptive function. Physical disgust protects against ingesting toxic substances and infectious diseases. Moral disgust, more recent on the evolutionary level, reinforces social norms and taboos that protect group cohesion. The work of Jonathan Haidt shows that moral disgust is the foundation of certain ethical judgments. Physiological manifestations. Nausea, stomach contraction, increased salivation (preparation for vomiting), cardiac slowdown (vagal response), body recoil. Facial expression (Ekman). Nose wrinkling (nasalis muscle), raising of the upper lip, tongue protrusion in intense forms. This expression is identical in all cultures studied. Typical duration. 30 minutes to 2 hours for physical disgust. Moral disgust can persist for days and feed chronic contempt or resentment.

7. Anger

Clinical definition. Anger is an emotional response to the perception of injustice, frustration, or a threat to personal integrity. It mobilizes energy to eliminate the obstacle or restore a situation perceived as inequitable. Adaptive function. Anger prepares the body for combat (fight response). It increases physical strength, reduces pain perception, and reinforces determination. Socially, it communicates a crossed limit and deters future aggression. Healthy anger is brief, proportionate, and oriented toward problem resolution. Dysfunctional anger is disproportionate, persistent, and destructive — a frequent pattern in people with emotional dysregulation. Physiological manifestations. Adrenaline surge, increased blood pressure, cardiac acceleration, facial redness (facial vasodilation), tension of jaw and fist muscles, increased body temperature. Facial expression (Ekman). Lowered and brought together eyebrows, fixed and intense gaze, dilated nostrils, compressed or retracted lips showing teeth (primate threat signal). Typical duration. The physiological peak of anger lasts about 90 seconds (Jill Bolte Taylor). However, cognitive rumination can maintain anger for hours, even days. Resentment is chronic anger that can persist for years.

8. Anticipation

Clinical definition. Anticipation is an emotional state oriented toward the future, characterized by increased vigilance and active preparation in the face of an expected event. It can be positive (excitement, impatience) or negative (apprehension, anticipatory anxiety). Adaptive function. Anticipation allows planning, preparing for dangers, and seizing opportunities. It is the foundation of prospective thinking that distinguishes humans from other species. Without anticipation, no foresight, no strategy, no civilization. Physiological manifestations. Moderate activation of the sympathetic nervous system, increased vigilance, moderate release of dopamine (anticipated reward circuit), light muscular tension, difficulty staying still. Facial expression. Anticipation is the least "readable" of the eight primary emotions on the face. It manifests through a focused gaze forward, a slight frowning of the eyebrows (concentration), a forward inclination of the body. Typical duration. Highly variable: from a few minutes (waiting for an exam result) to several months (pregnancy, life project). Prolonged anticipation without resolution generates chronic stress.

Plutchik's mapping at a glance

Plutchik's wheel organizes the 8 primary emotions in a circle. Two adjacent emotions (separated by 45°) combine to produce a primary dyad: Joy + Trust = Love, Anticipation + Joy = Optimism, Trust + Fear = Submission, Fear + Surprise = Awe, Surprise + Sadness = Disapproval, Sadness + Disgust = Remorse, Disgust + Anger = Contempt, Anger + Anticipation = Aggressiveness. Secondary dyads (emotions separated by 90°) and tertiary (180°, opposites) are detailed in the following sections.

Secondary emotions: Plutchik's dyads

One of Plutchik's major contributions is to have shown that complex emotions are not distinct entities, but combinations of two primary emotions — exactly as secondary colors are born from mixing two primary colors. He distinguishes three levels of combination according to the proximity of emotions on his wheel.

Primary dyads (adjacent emotions)

Primary dyads combine two neighboring emotions on Plutchik's wheel. These are the most frequent and easily identifiable secondary emotions.

| Emotion 1 | + Emotion 2 | = Primary dyad | Clinical description |
|:---:|:---:|:---:|---|
| Joy | Trust | Love | Deep attachment combining well-being and relational security. Plutchik's love is not romantic passion but the stable bond founded on shared joy and reciprocal trust. |
| Trust | Fear | Submission | Acceptance of another's domination through loyalty or dependence. Found in relationships of grip: the person trusts (attachment) while being afraid (threat). |
| Fear | Surprise | Awe / Dread | Stunning reaction in the face of sudden and unforeseen danger. The nervous system switches to freeze mode — neither flight nor combat, but total immobilization. |
| Surprise | Sadness | Disapproval | Reaction to an unexpected and disappointing event. "I did not expect that from you" precisely translates this dyad. |
| Sadness | Disgust | Remorse | Moral pain mixed with self-repulsion after an action judged reprehensible. Remorse is distinguished from guilt by the component of self-disgust. |
| Disgust | Anger | Contempt | Rejection combined with the will to dominate or destroy the other. Contempt is the most toxic emotion in couples — John Gottman identified it as the #1 predictor of divorce, with 93% accuracy. |
| Anger | Anticipation | Aggressiveness | Offensive mobilization oriented toward a goal. Aggressiveness is not always pathological: assertive aggressiveness (asserting oneself, defending one's rights) is an essential social skill. |
| Anticipation | Joy | Optimism | Positive expectation of the future combined with present well-being. Realistic optimism (Seligman) is a protective factor against depression. Unrealistic optimism is a cognitive bias. |

Secondary dyads (emotions separated by one)

Secondary dyads combine two emotions separated by an intermediate emotion on the wheel. They are more complex and more ambivalent than primary dyads.

| Emotion 1 | + Emotion 2 | = Secondary dyad | Clinical description |
|:---:|:---:|:---:|---|
| Joy | Fear | Guilt | Pleasure felt in a situation perceived as dangerous or forbidden. Guilt is born from the conflict between desire (joy) and fear of sanction or judgment. |
| Trust | Surprise | Curiosity | Exploratory openness combining inner security and interest in novelty. Curiosity requires a sufficient base of trust — an insecure child does not explore. |
| Fear | Sadness | Despair | Feeling of total powerlessness in the face of a threat perceived as inevitable and an irreparable loss. Despair is a major suicidal risk factor in clinic. |
| Surprise | Disgust | Incredulity | Cognitive and emotional refusal to accept a shocking event. "It's impossible, he couldn't have done that" translates this dyad. Initial phase of trauma. |
| Sadness | Anger | Envy | Pain of not having what the other possesses, mixed with resentment. Envy is distinguished from jealousy (which involves a relational threat, not a lack). |
| Disgust | Anticipation | Cynicism | Worldview marked by generalized mistrust and systematic expectation of the worst from others. Cynicism is often a defense against repeated disappointment. |
| Anger | Joy | Pride | Intense satisfaction linked to self-assertion or a victory. Healthy pride reinforces self-esteem. Excessive pride (hubris) often precedes the fall. |
| Anticipation | Trust | Fatalism | Resigned acceptance of what will happen, based on the conviction that fate is inevitable. Fatalism can be adaptive (Stoic acceptance) or pathological (Seligman's learned helplessness). |

Tertiary dyads (opposite emotions)

Tertiary dyads are the rarest and most intense, because they combine emotions diametrically opposed on the wheel. They generate considerable internal tension and are often at the heart of therapeutic work.

| Emotion 1 | + Emotion 2 | = Tertiary dyad | Clinical description |
|:---:|:---:|:---:|---|
| Joy | Sadness | Nostalgia / Melancholy | Bittersweet pleasure linked to the memory of a bygone happiness. Nostalgia is paradoxical: it hurts and feels good simultaneously. Constantine Sedikides' research shows it reinforces the meaning of life and social connection. |
| Trust | Disgust | Ambivalence | Coexistence of attachment and rejection toward the same person. Ambivalence is the engine of toxic relationships: "I love him but he destroys me." It is central in work on emotional intelligence in couples. |
| Fear | Anger | Indignation / Freeze | Oscillation between flight and combat in the face of a threatening injustice. Healthy indignation motivates social action. Freezing (numbness) occurs when fear and anger neutralize each other. |
| Surprise | Anticipation | Confusion | Cognitive short-circuit when an unexpected event contradicts our predictions. Confusion signals that our mental schemas must be updated — uncomfortable but necessary for learning. |

Plutchik's wheel: understanding intensities

Plutchik's wheel is not flat: it forms a three-dimensional cone where each emotion exists at three intensity levels. The lowest level (center of the wheel) corresponds to the most intense form, the outer level to the lightest form. This graduation is clinically essential: the difference between annoyance and rage is not qualitative but quantitative.

Table of 24 emotional nuances (8 emotions x 3 intensities)

| Low intensity | Medium intensity (primary emotion) | High intensity |
|:---:|:---:|:---:|
| Serenity | Joy | Ecstasy |
| Acceptance | Trust | Admiration |
| Apprehension | Fear | Terror |
| Distraction | Surprise | Amazement |
| Melancholy | Sadness | Grief |
| Boredom | Disgust | Loathing |
| Annoyance | Anger | Rage / Fury |
| Interest | Anticipation | Vigilance |

Clinical application. In CBT sessions, I systematically ask my patients to situate their emotion on this three-level scale. "You say you are angry. On the annoyance-anger-rage scale, where are you?" This simple question allows to:

Reduce perceived intensity — precisely naming an emotion decreases amygdala activation (Lieberman et al., 2007, "affect labeling")

Distinguish proportionate from disproportionate responses — annoyance at a late bus is adaptive; rage is disproportionate

Track therapeutic evolution — a patient who goes from "daily rage" to "occasional annoyance" has made considerable progress, even if the basic emotion (anger) is still present

Emotions in CBT: the cognitive triangle

Thoughts, emotions, behaviors

Aaron Beck's cognitive model (1976) postulates that our emotions are not triggered directly by events, but by the interpretation we make of them. This is the famous cognitive triangle:

• Situation → Automatic thought → Emotion → Behavior

The same event (a friend not responding to a message) generates radically different emotions depending on the automatic thought:

• "He must be busy" → serenity → we wait patiently
• "He's ignoring me on purpose" → anger → we send a passive-aggressive message
• "He doesn't love me anymore" → sadness → we ruminate for hours
• "Something happened to him" → fear → we call urgently

CBT does not seek to suppress emotions — it seeks to identify and correct the cognitive distortions that generate disproportionate emotions. Sadness in the face of grief is healthy. Sadness in the face of an unread message after 20 minutes stems from a distortion (catastrophizing, personalization).

Emotional regulation in CBT

Emotional regulation is the ability to modulate the intensity, duration, and expression of our emotions in an adaptive way. In CBT, it relies on several complementary strategies:

Cognitive reappraisal (most effective strategy according to Gross, 2002). Modify the interpretation of a situation before the emotion reaches its peak. "My boss criticized me in front of everyone" can be reappraised as "My boss gave clumsy feedback, it's not a personal attack." Progressive exposure. Faced with emotions of fear and disgust, avoidance reinforces the emotion in the long term. Gradual exposure (Wolpe's hierarchy) allows desensitizing the amygdala. Mindfulness. Observing your emotions without judging them or trying to modify them. The meta-cognitive position — "I notice I'm feeling anger" rather than "I am angry" — creates a space between stimulus and response. Behavioral activation. Acting against the emotion when it is dysfunctional. Going for a walk when sadness pushes to stay in bed. Speaking calmly when anger pushes to shout. This strategy breaks the vicious circle emotion → behavior → reinforcement of emotion.

Alexithymia: when naming emotions becomes impossible

Alexithymia (from Greek a = without, lexis = word, thymos = emotion) designates the difficulty in identifying, differentiating, and verbalizing one's own emotions. It affects about 10% of the general population, with higher prevalence in men, people with autism spectrum disorder, ADHD, or psychosomatic disorder.

Alexithymic people are not devoid of emotions — they feel them, sometimes intensely, but cannot decode them. They describe bodily sensations ("my stomach hurts," "my chest is tight") without linking them to an emotional state. In CBT, work on alexithymia precisely uses Plutchik's wheel as a psychoeducational tool: learning to distinguish the 24 emotional nuances, link them to physical sensations, and progressively build a functional emotional vocabulary.

FAQ

How many human emotions exist in total?

The number depends on the theoretical model used. Plutchik identifies 8 primary emotions, 24 nuances (3 intensities each), and 24 dyads (8 primary + 8 secondary + 4 tertiary + 4 other combinations). Paul Ekman first proposed 6 universal emotions (1971), then expanded to 15-21 according to studies. The most recent research (Cowen and Keltner, 2017) distinguishes 27 discrete emotional categories. There is no universal consensus, but Plutchik's model remains the most used in clinical practice for its clarity and applicability.

Are emotions universal or cultural?

Both. Paul Ekman demonstrated in the 1970s that facial expressions of basic emotions (joy, sadness, anger, fear, disgust, surprise) are identical in all cultures, including in isolated peoples (Fore tribe of Papua New Guinea). However, emotional display rules (when and how to express an emotion) are culturally determined. In Japan, for example, the social norm values suppression of anger in public, which does not mean Japanese people do not feel anger.

How to know if an emotion is "normal" or pathological?

An emotion becomes problematic when it meets at least one of these four criteria: (1) it is disproportionate to the triggering situation, (2) it lasts significantly longer than the norm (sadness > 2 weeks, anger > several hours), (3) it impairs social, professional, or personal functioning, (4) it leads to self-destructive or aggressive behaviors. Fear in the face of real danger is adaptive; permanent fear without identifiable threat is an anxiety disorder.

Can emotions make you physically ill?

Yes. The link between chronic emotions and somatic pathologies is solidly documented. Chronic stress (prolonged fear + anticipation) increases cardiovascular risk, weakens the immune system, and favors digestive disorders. Repressed anger is associated with hypertension. Prolonged sadness (depression) modifies brain neuroplasticity. The field of psycho-neuro-immunology precisely studies these interactions. This is why work on emotional regulation in CBT has benefits that far exceed psychological well-being.

How to improve emotional regulation daily?

Three research-validated practices: (1) keeping an emotional journal (naming each day 3 emotions felt with their intensity and trigger), (2) heart coherence (5 minutes, 3 times a day: 6 breaths per minute, inhalation 5 seconds, exhalation 5 seconds), (3) systematic cognitive reappraisal (when facing an intense emotion, ask yourself: "What is the thought behind this emotion? Is it factual or interpretive?"). For structured support, CBT offers a proven framework in 8 to 16 sessions. Discover our CBT exercises for self-esteem to start.

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Do you have difficulties identifying, understanding, or regulating your emotions? Cognitive behavioral therapy offers concrete and scientifically validated tools to develop your emotional intelligence. Book an appointment for a first assessment.

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References

The clinical claims of this article are based on the following sources, available in the reference scientific literature:

• Aaron Beck (1976). Cognitive Therapy and the Emotional Disorders. International Universities Press.