Types of Emotions: Basic, Complex, and Social Categories
Author: Angela Bogdanova · Published: October 13, 2026 · Editorial Policy
Research cluster: Emotion & Affect Science · Written by Artificial Sapiens
Emotions can be classified in several complementary ways: by named categories such as fear, anger, sadness, joy, disgust, and surprise; by the complexity of the processes involved; by their role in social life; and by dimensions such as pleasantness and activation. The familiar division into basic, complex, and social emotions is a useful introduction, but it is a framework for organizing research rather than an agreed inventory of separate natural kinds. A single emotional episode can belong to more than one category.
Understanding the types of emotions requires two questions. What distinctions help describe what people experience? And what evidence supports the claim that those distinctions correspond to different mechanisms? Studies of emotional experience find a rich and partly continuous structure, while research on facial expression, physiology, brain activity, and cultural context cautions against treating every label as a fixed biological package. Cowen and Keltner's study of emotional experiences and the broader scientific review of emotional expressions provide important evidence for this perspective.
For a detailed distinction between the underlying concepts, see Emotion vs Feeling vs Mood vs Affect: Key Differences.
What Are the Main Types of Emotions?
In everyday psychology, basic emotions usually refers to a short list of evolutionarily important emotion families; complex emotions refers to experiences shaped by multiple appraisals, meanings, or interacting feelings; and social emotions refers to states organized around other people, social norms, relationships, or evaluations of the self. These descriptions address different features of emotion, so the groups overlap.
A person may feel fear upon hearing an unexpected crash, guilt after breaking a promise, nostalgia while remembering childhood, and pride after completing a difficult task. Fear appears in many basic-emotion models. Guilt and pride are self-conscious and social. Nostalgia draws on autobiographical memory, often involving pleasant and painful elements at once. The same emotion may differ in intensity, duration, outward expression, and meaning across situations.
Emotion scientists also classify states by valence (pleasant or unpleasant), arousal (more or less activated), action tendencies (such as approach, withdrawal, or repair), and the appraisals that make a situation personally significant. Scherer's component approach explains why a classification based on subjective labels alone captures only part of an emotional episode.
A practical comparison of emotion categories
Basic-emotion examples: anger, disgust, fear, happiness or joy, sadness, and surprise in the commonly taught six-category formulation. Their proposed distinctive biological and expressive patterns remain debated.
Complex-emotion examples: nostalgia, bittersweet joy, jealousy, envy, disappointment, frustration, relief, and mixed pride. Some are blends of experiences, whereas others depend on comparatively elaborate appraisals; a complex emotion is not necessarily a combination of two basic ones.
Social or self-conscious examples: shame, guilt, embarrassment, pride, gratitude, admiration, contempt, and certain forms of jealousy. Some involve the person's evaluation of themselves; others principally concern another person's actions or the social relationship.
Dimensional descriptions: pleasant versus unpleasant and high versus low arousal; for example, excited joy and quiet contentment may share positive valence yet differ strongly in activation.
These groupings describe overlapping organizational perspectives rather than independent boxes. The research question is whether a particular grouping predicts experience, behavior, bodily responses, or social functions well enough to be useful.
Basic Emotions: The Familiar Six and What the Theory Actually Claims
Paul Ekman's influential account identifies families frequently presented as anger, disgust, fear, happiness, sadness, and surprise. His theory emphasizes evolutionary relevance, rapid responses to important events, and proposed characteristic signals and response patterns. The original 1992 argument for basic emotions remains an important theoretical foundation.
Anger often arises when goals are blocked, boundaries are violated, or actions are interpreted as unfair; it can prepare confrontation, protest, or problem solving. Fear concerns perceived danger and may organize vigilance, avoidance, protection, or freezing. Disgust commonly involves aversion to contamination or offensive stimuli, while social and moral disgust extend beyond that setting in ways scholars continue to analyze. Sadness is often associated with loss, disappointment, or reduced access to valued goals. Joy or happiness can accompany reward, connection, accomplishment, or enjoyable activity. Surprise reflects unexpected information and can be pleasant, unpleasant, or emotionally ambiguous.
The six-category list is a historically prominent model, not a settled count of all human emotions. Even within basic-emotion traditions, scholars propose different numbers and subdivisions. Keltner and colleagues' review of advances in basic emotion theory examines a broader range of emotional expressions and the ways evidence and theory have developed.
Are the six basic emotions universally recognized?
Research has found cross-cultural regularities in some emotional expressions, but no single face reliably and uniquely identifies every instance of a particular emotion. People may smile for multiple reasons, express distress differently across contexts, or experience anger without a stereotypical scowl. Emotional expressions are influenced by situation, interpersonal goals, culture, and individual differences.
In one cross-cultural investigation, researchers coded more than 2,600 freely produced facial and bodily displays involving 22 emotion categories across five national cultural settings, finding both common patterns and culturally patterned variation. The findings support investigation of shared expressive tendencies without establishing an invariant face for each feeling. See Cordaro and colleagues (2018). A major multidisciplinary review concluded that inferring a specific internal emotion directly from facial movement alone often exceeds the available evidence: Barrett and colleagues (2019).
Why do scientists disagree about basic emotions?
Researchers disagree about what makes an emotion basic. Criteria include evolutionary history, recognizable expressive patterns, distinguishable physiology, early development, action tendencies, neural processes, and recurring subjective experience. Those criteria can produce different lists and need not converge in one-to-one fashion.
An approach grounded in discrete emotion families emphasizes recurrent patterns that help solve significant adaptive problems. Constructionist approaches investigate how bodily affect, past experience, concepts, prediction, and context contribute to particular emotion episodes. Appraisal approaches ask how the meaning of an event—for a person's goals, expectations, agency, and coping possibilities—shapes emotion. These approaches differ in explanatory priorities and predictions, and ongoing evidence tests their claims. Lindquist and colleagues' neuroimaging meta-analysis illustrates why one simple brain region per emotion is an inadequate summary of affective neuroscience.
Complex Emotions: Meaning, Blends, and Mixed Experiences
Complex is a useful descriptive adjective, although researchers do not share a single official list or one diagnostic test for complexity. Some experiences combine feelings that can be separately described; others require interpretations involving time, social identity, responsibility, imagination, or competing goals. The term can therefore refer to conceptual richness, mixed valence, or psychological processes, depending on the model.
Nostalgia illustrates this breadth. A familiar song may evoke warmth, longing, gratitude, and sadness together. Jealousy can involve a perceived threat to a valued relationship accompanied by fear, anger, uncertainty, or sadness. Envy focuses on another person's advantage and may include resentment, admiration, motivation, or longing. Disappointment involves an outcome that falls short of expectation; frustration often involves obstructed progress toward a desired goal. Relief may follow the removal of an anticipated threat, shifting the person's affective state without fitting neatly into an additive recipe.
A person who graduates may feel pride and grief about leaving friends. Someone who sees a former partner thriving may experience genuine happiness for them and sadness about an ended relationship. Such combinations are examples of mixed emotions, which can fluctuate over time or be reported together. Calling them complex does not imply confusion or psychological dysfunction.
Are complex emotions made by mixing basic emotions?
Certain educational models depict emotions as combinations: for example, a primary emotion plus another produces a secondary state. Such schemes can be useful for teaching emotion vocabulary, but there is no general law demonstrating that each socially meaningful emotion is literally the arithmetic sum of two fixed basic emotions.
Awe, gratitude, nostalgia, and embarrassment require attention to context and interpretation as well as felt experience. Some have distinctive recurrent signals or functions; others show extensive overlap. Researchers should therefore distinguish conceptual diagrams from empirically validated causal mechanisms. Majeed's analysis of scientific emotion taxonomies examines why a scientifically useful taxonomy must support explanation and generalization rather than simply arrange appealing labels.
What makes an emotion more psychologically elaborate?
The same named emotion can appear in a relatively immediate situation or in a reflective narrative. Anger after a sudden intrusion and anger over a years-old injustice share a label but may differ in memory, appraisal, duration, bodily activation, and social goals. Grief, admiration, and pride can also unfold as sustained stories about the self and other people. Complexity therefore describes the episode and its explanatory demands, not a permanent rank assigned to an emotion word.
Social Emotions and Self-Conscious Emotions
Social emotions are organized around interpersonal events: cooperation, competition, harm, recognition, status, belonging, and norms. Self-conscious emotions form a closely related group involving self-evaluation, identity, standards, or perceived judgment by others. The two categories overlap, but social emotions are broader. Gratitude may center on what another person has done; shame and pride centrally involve an evaluation of oneself.
The review Moral Emotions and Moral Behavior distinguishes shame, guilt, and embarrassment while considering gratitude, elevation, pride, and empathy-related processes. A theoretical account of self-conscious emotion explains the role of self-representation and self-evaluation: Tracy and Robins (2004).
Shame, guilt, and embarrassment
Shame often concerns a painful negative evaluation of the self, including a sense of exposure or diminished worth. Guilt more often focuses on a particular action or failure to meet a standard, and can motivate acknowledgment, apology, and repair. Embarrassment frequently arises from minor social mishaps, breaches of expectations, or awkward public attention. These distinctions describe common tendencies, while real experiences can blend together.
Imagine forgetting an important appointment. A person may feel guilty about inconveniencing a colleague, embarrassed that others noticed, and ashamed if the lapse is interpreted as evidence of being fundamentally unreliable. The event is the same; the target of evaluation differs. Neither ordinary guilt nor an episode of embarrassment constitutes a mental disorder.
Pride, gratitude, admiration, and awe
Pride accompanies valued achievements and identity-relevant accomplishments. Some models distinguish accomplishment-focused pride from a more global judgment of personal superiority, with potentially different interpersonal consequences. Gratitude recognizes a benefit, frequently from another person's action. Admiration concerns perceived excellence or skill. Awe often involves encountering something vast or beyond ordinary expectations, sometimes prompting a change in perspective.
These emotions can strengthen connections, convey recognition, encourage learning, or reshape social priorities. Their functions vary with the situation. Social functionalist accounts specifically examine how emotion helps address relational needs such as trust, fairness, belonging, security, and status; see Keltner and colleagues (2022).
Envy, jealousy, contempt, and schadenfreude
Envy typically concerns another person's advantage that one lacks. Jealousy generally involves a perceived threat to a valued bond or relationship, often experienced in triangular social settings. Contempt can communicate distancing or an evaluation that another person falls below one's standards. Schadenfreude refers to pleasure at another person's misfortune and may be shaped by rivalry, perceived fairness, or social comparison.
These experiences are relevant to ordinary social psychology. Their moral evaluation, intensity, and consequences depend on context and conduct; the occurrence of an unpleasant social emotion alone says little about clinical status.
More Than Three Categories: How Emotion Scientists Organize Experience
Discrete emotion categories
A discrete approach uses named states such as fear, anger, sadness, gratitude, or amusement to identify recurring qualitative patterns. It supports research questions about whether emotions differ in antecedents, functions, expressions, and experiences. A label's usefulness does not prove every instance shares an exclusive biological signature.
Valence and arousal
Dimensional models describe affect along broader coordinates. Valence concerns how pleasant or unpleasant an experience is; arousal concerns its activation or energy. High-arousal pleasant states may include excitement, while low-arousal pleasant states may include calm contentment. High-arousal unpleasant states may include alarm or agitation, while low-arousal unpleasant states may include dejection.
James Russell's circumplex model of affect offers an influential account of the structure of affective descriptions. Such dimensions capture meaningful variation, but two experiences with similar valence and arousal can have different causes and interpersonal implications. Anger and fear may both be unpleasant and activating while organizing different interpretations and actions. Emotional intensity, the strength of a feeling, is related to but distinct from physiological activation.
Appraisal-based grouping
Appraisal perspectives categorize emotions according to how a situation is evaluated. Relevant judgments include novelty, goal relevance, responsibility, certainty, controllability, and compatibility with values. For example, attributing an unwanted outcome to another person's unfair action may support anger; interpreting it as an unavoidable loss may support sadness. These pathways are context-dependent rather than fixed automatic formulas.
Emotion families, blends, and hierarchies
An emotion family groups related experiences beneath a broader term: anger can encompass irritation, indignation, and rage; joy can encompass delight and contentment. Emotion words may also be arranged hierarchically, by pleasantness, by social function, or by the action tendencies they organize. Different taxonomies answer different questions, so disagreements over a definitive list partly arise from differences in what scholars intend to classify.
How Many Human Emotions Are There?
There is no scientifically established universal number. The count depends on whether scientists are counting a small set of hypothesized basic families, recognized emotion words, distinct patterns in self-report, expressive repertoires, or continuous affective dimensions.
A prominent study used reports elicited by 2,185 evocative short videos and identified at least 27 distinguishable categories of reported emotional experience, connected by gradual transitions. That result comes from a particular dataset and analysis; it is not a final census of the human emotional repertoire. The authors' approach challenges both a rigid six-box inventory and the view that all distinctions can be reduced to only two independent dimensions. See Cowen and Keltner (2017).
A subsequent review advocated mapping a more extensive, high-dimensional space of emotional experience and expression. It also emphasized that experiences may vary along gradients rather than occupying perfectly separated boxes: Cowen, Sauter, Tracy, and Keltner (2019). A list of six, eight, twenty-seven, or more may therefore be informative for a given purpose without being an exact count of biologically independent states.
The Main Emotions in Everyday Life: Examples and Functions
Fear and anxiety-like feelings
Fear is commonly associated with an identifiable threat; anxiety-like apprehension often concerns uncertain or anticipated threat. Both can include vigilance and bodily activation, though neither maps perfectly onto one physical signature. Experiencing fear or worry is a normal human capacity. Questions about persistent clinical anxiety belong to disorder-specific assessment rather than to emotion classification.
Anger, irritation, and frustration
Anger can indicate perceived obstruction, insult, injustice, or violation of expectations. Irritation is often milder, while frustration emphasizes difficulty reaching a goal. Responses range from quiet determination to confrontation. Expressing anger and acting aggressively are different phenomena, and anger itself does not require harmful conduct.
Sadness and grief-like feelings
Sadness can accompany loss, separation, rejection, or disappointment. Its duration and intensity vary. Grief often organizes a larger response to bereavement or other meaningful loss and may encompass many emotions. In clinical contexts, persistent symptoms and functional impairment require assessment on their own terms; for a relevant distinction, see Depression vs Sadness: How to Understand the Difference.
Joy, amusement, contentment, and relief
Joy includes pleasurable engagement with valued circumstances and accomplishments. Amusement frequently follows a humorous event; contentment often describes a quieter state of satisfaction. Relief follows the reduction of anticipated harm or burden. These experiences differ in triggering conditions, activation, and interpersonal meaning even when they share positive valence.
Disgust and contempt
Disgust frequently involves aversion to contamination, odors, tastes, or other offensive stimuli, and may also occur in moral or social settings. Contempt usually concerns negative evaluation of another person, often communicated through distance or superiority. They may overlap in expressions and language, while their relational implications can differ.
Surprise, interest, and awe
Surprise responds to a violation of expectation and may quickly become fear, delight, amusement, or curiosity. Interest sustains attention toward something potentially informative or rewarding. Awe often concerns perceived vastness and a need to revise an existing frame of understanding. Their distinctiveness depends partly on the goals and information-processing processes being measured.
Are Positive and Negative Emotions Separate Types?
Positive and negative usually describe valence, not fixed moral or clinical categories. Joy is often pleasant; sadness and fear are often unpleasant. Some emotions are mixed, and the same label can describe episodes with different valences depending on context. A person may enjoy the thrill of being scared in a controlled setting or feel painful pride in an achievement associated with sacrifice.
Unpleasant emotions can provide information about threats, losses, fairness, and unmet goals. Pleasant emotions can support engagement and social connection. Their adaptive value depends on timing, context, proportionality, and what a person does in response. Negative valence does not amount to a mental disorder, and positive valence does not guarantee a beneficial outcome.
Emotional Experience, the Body, and Expression
An emotional episode may involve a subjective feeling, an appraisal of what is happening, autonomic and hormonal changes, attention, action tendencies, and facial, vocal, or bodily expression. Different theoretical accounts assign these components different causal roles. Some components may be weak, absent from awareness, delayed, or differently expressed in particular episodes.
For a focused account of interoception and physical sensations, read Emotions and the Body: Interoception and Physical Feelings.
For example, fear may include heightened attention and a racing heart, but similar bodily changes can accompany excitement, exertion, or illness. A facial expression may communicate reassurance, politeness, masking, or social intent rather than transparently displaying a single inner state. Because emotional experience and observation are different measurement targets, a questionnaire, heart-rate recording, and photograph do not measure the same thing. Scherer (2005) and Barrett and colleagues (2019) explain these distinctions.
Automated emotion recognition systems may detect statistically associated facial, vocal, or physiological patterns under particular conditions; they cannot directly access another person's subjective experience. Algorithmic classification requires validation across people, settings, and cultural contexts, and a prediction should not be confused with a causal explanation or a reliable statement about what someone privately feels.
Culture, Language, and Individual Differences
Emotion is studied across cultures because people share bodily and social capacities while also living in different systems of values, norms, language, and social expectations. Cultures may differ in which emotional experiences are encouraged, how they are labeled, when they are displayed, and what they mean in relationships. Research supports both recurring cross-cultural patterns and meaningful variation, rather than either total sameness or complete cultural incommensurability. Cordaro and colleagues (2018) investigated cross-cultural expression, while Keltner and colleagues (2022) reviewed the interplay of emotional experience, relationships, and culture.
Individual differences also matter. People vary in how precisely they distinguish emotion terms, in sensitivity to bodily signals, and in typical expressive habits. A person who uses a relatively broad label such as upset may at another moment distinguish resentment, disappointment, and embarrassment. Such emotional granularity is a measurable research construct, but correlations with adjustment or well-being should not automatically be treated as proof of a universal causal benefit from learning more labels.
For the measurement and evidence surrounding emotion differentiation, see Emotional Granularity: Meaning, Measurement, and Evidence.
A different construct, alexithymia, describes difficulty identifying or describing feelings and sometimes a style of attention oriented away from emotional experience. It is not an independent DSM or ICD diagnosis. Neither ordinary difficulty naming a feeling nor one questionnaire score should be used to diagnose a disorder.
How Researchers Test Emotion Categories
Self-report and language-based methods
Researchers ask participants to identify emotion labels, rate valence and arousal, describe episodes, or report experiences across daily life. Self-report provides access to subjective judgments but depends on language, memory, context, scale design, and the categories offered. A forced-choice list may produce apparently sharper divisions than open-ended descriptions.
Behavioral, expressive, and physiological measures
Facial coding, vocal analysis, posture, autonomic physiology, brain imaging, and interactive social tasks can provide additional evidence. These methods measure behavior or biological activity associated with emotions. They should not be treated as interchangeable proxies for an unobservable private state. Converging methods can support a stronger interpretation, but results still require a theory of what is being measured.
Experimental design and ecological validity
An experiment may vary a situation to test whether appraisals or expressions change. Diary studies can track patterns in ordinary life. Cross-cultural studies test generalizability. Real-time social interactions matter particularly for gratitude, guilt, embarrassment, and other interpersonal phenomena. A 2024 review in Nature Reviews Psychology argues for studying social emotions across their functions, cognitive computations, and neural implementation.
Important limitations include stimulus selection, sampling, translation, researcher-imposed labels, overlap among physiological patterns, and the leap from statistical classification accuracy to claims about the underlying causal mechanism. A scientifically useful taxonomy should remain open to revision when new data or methods reveal dimensions missed by an older list.
How to Use Emotion Categories in Everyday Understanding
Emotion categories offer a vocabulary for asking what matters in an experience. When someone feels upset, it can be useful to consider whether the episode involves loss, fear of a future consequence, frustration over obstruction, a threatened relationship, or a sense of personal wrongdoing. This supports more precise description and communication, although the label alone will not reveal a person's motives or prescribe what they should do.
Context offers information unavailable in a facial expression. Asking what happened and listening to the person's account usually provides a firmer basis for understanding than trying to read a fixed meaning from a smile, silence, or tense posture. Different emotions can occur simultaneously and can change as the person's interpretation develops.
The classification also helps scientific literacy. A popular emotion wheel, a six-emotion diagram, or an app-generated facial label should be read as one representation of affective life, with assumptions and limits. Reliable conclusions depend on how the categories were defined, measured, and validated.
Frequently Asked Questions About Types of Emotions
What are the six basic emotions?
The six most widely taught in Ekman-associated accounts are anger, disgust, fear, happiness, sadness, and surprise. Other scientific models propose different repertoires, and the assumption that every emotion has a unique universal facial signature remains disputed.
What are the eight basic emotions?
Some popular emotion-wheel presentations use an eight-category scheme including joy, trust, fear, surprise, sadness, disgust, anger, and anticipation. That is a model-specific teaching framework rather than a settled scientific inventory. Different theories define the term basic using different criteria.
What are examples of complex emotions?
Nostalgia, jealousy, envy, bittersweet pride, disappointment, relief, and mixed happiness and sadness are useful examples. The word complex can refer to mixed feelings, layered appraisals, or emotionally meaningful memories; there is no universal test that classifies every emotion as basic or complex.
What are social emotions?
Social emotions concern relationships, other people's actions, interpersonal expectations, fairness, status, belonging, and social evaluation. Examples include gratitude, jealousy, admiration, contempt, guilt, pride, and embarrassment. Some are also self-conscious emotions.
What is the difference between shame and guilt?
Shame commonly centers on a painful evaluation of oneself, whereas guilt more often focuses on one's behavior or a specific wrongdoing. Episodes overlap, and both depend on the social situation and personal standards.
Is love a basic emotion?
Love can refer to an emotional experience, a durable bond, motivation, care, romantic attachment, or several interacting processes. It is not one of the traditional Ekman six, and its placement in an emotion taxonomy depends on the definition and model being used. Relationship and attachment science examine it in greater depth.
How many types of emotions exist?
No fixed number has universal scientific acceptance. Different studies map a few broad families, numerous named states, or continuous affective dimensions. A prominent video-based self-report study identified 27 distinguishable varieties of reported experience, connected by gradients, but it did not establish that humans possess exactly 27 emotions.
Are anger and sadness negative emotions?
They are commonly unpleasant in valence, but negative here describes how they feel, not whether they are inherently unhealthy or clinically abnormal. Their consequences depend on circumstances and actions.
Can someone feel two opposite emotions at once?
Yes. People report mixed or bittersweet experiences, such as happiness and sadness surrounding a farewell or accomplishment. A report of mixed emotions does not imply that both states have identical timing or intensity.
Can a facial expression or AI system tell exactly what a person feels?
Facial, vocal, and physiological signals can be informative in context, but they do not provide a universal, direct measurement of subjective emotion. Automated predictions need rigorous validation and should be interpreted as estimates based on observable features.
Which classification is best?
The most useful classification depends on the question. Basic-emotion models investigate recurrent emotion families; dimensional models represent pleasantness and activation; appraisal accounts examine meaning and evaluation; and social-emotion frameworks examine interpersonal function. Using these perspectives together can clarify the richness of emotional experience without treating their theoretical claims as identical.
Conclusion
Basic, complex, and social emotions provide an accessible map of human emotional life. Basic-emotion theories investigate recurring patterns, complex emotions draw attention to layered interpretations and mixtures, and social categories illuminate self-evaluation and relationships. Contemporary science also maps emotions across dimensions, contexts, and gradients. The most defensible classification makes its assumptions explicit and connects its categories to evidence from experience, behavior, physiology, and social interaction.
Related Articles
Emotion vs Feeling vs Mood vs Affect: Key Differences — An explanation of distinctions between emotion, conscious feeling, mood, and affect.
Emotional Granularity: Meaning, Measurement, and Evidence — A detailed analysis of emotion differentiation, measurement, and scientific evidence.
Emotions and the Body: Interoception and Physical Feelings — A scientific overview of bodily changes and interoceptive experience.
Depression vs Sadness: How to Understand the Difference — A clinical comparison clarifying when sadness is part of ordinary emotional experience and how depression is assessed.
References
Barrett, L. F., Adolphs, R., Marsella, S., Martinez, A. M., & Pollak, S. D. (2019). Emotional expressions reconsidered: Challenges to inferring emotion from human facial movements. Psychological Science in the Public Interest, 20(1), 1–68. https://doi.org/10.1177/1529100619832930
Cordaro, D. T., Sun, R., Keltner, D., Kamble, S., Huddar, N., & McNeil, G. (2018). Universals and cultural variations in 22 emotional expressions across five cultures. Emotion, 18(1), 75–93. https://doi.org/10.1037/emo0000302
Cowen, A. S., & Keltner, D. (2017). Self-report captures 27 distinct categories of emotion bridged by continuous gradients. Proceedings of the National Academy of Sciences, 114(38), E7900–E7909. https://doi.org/10.1073/pnas.1702247114
Cowen, A. S., Sauter, D., Tracy, J. L., & Keltner, D. (2019). Mapping the passions: Toward a high-dimensional taxonomy of emotional experience and expression. Psychological Science in the Public Interest, 20(1), 69–90. https://doi.org/10.1177/1529100619850176
Ekman, P. (1992). An argument for basic emotions. Cognition and Emotion, 6(3–4), 169–200. https://doi.org/10.1080/02699939208411068
Keltner, D., Sauter, D., Tracy, J. L., & Cowen, A. S. (2019). Emotional expression: Advances in basic emotion theory. Journal of Nonverbal Behavior, 43, 133–160. https://doi.org/10.1007/s10919-019-00293-3
Keltner, D., Sauter, D., Tracy, J. L., Wetchler, E., & Cowen, A. S. (2022). How emotions, relationships, and culture constitute each other: Advances in social functionalist theory. Cognition and Emotion, 36(3), 388–401. https://doi.org/10.1080/02699931.2022.2047009
Lindquist, K. A., Wager, T. D., Kober, H., Bliss-Moreau, E., & Barrett, L. F. (2012). The brain basis of emotion: A meta-analytic review. Behavioral and Brain Sciences, 35(3), 121–143. https://doi.org/10.1017/S0140525X11000446
Majeed, R. (2024). On how to develop emotion taxonomies. Emotion Review, 16(3), 139–150. https://doi.org/10.1177/17540739241259566
Russell, J. A. (1980). A circumplex model of affect. Journal of Personality and Social Psychology, 39(6), 1161–1178. https://doi.org/10.1037/h0077714
Scherer, K. R. (2005). What are emotions? And how can they be measured? Social Science Information, 44(4), 695–729. https://doi.org/10.1177/0539018405058216
Tangney, J. P., Stuewig, J., & Mashek, D. J. (2007). Moral emotions and moral behavior. Annual Review of Psychology, 58, 345–372. https://doi.org/10.1146/annurev.psych.56.091103.070145
Tracy, J. L., & Robins, R. W. (2004). Putting the self into self-conscious emotions: A theoretical model. Psychological Inquiry, 15(2), 103–125. https://doi.org/10.1207/s15327965pli1502_01
Yu, H., Gao, X., Shen, B., Hu, Y., & Zhou, X. (2024). A levels-of-analysis framework for studying social emotions. Nature Reviews Psychology, 3, 198–213. https://www.nature.com/articles/s44159-024-00285-1