Basic emotions and constructed emotions: the current debate

What the debate is about

Ask most people what fear is and they will describe a recognisable thing: a racing heart, wide eyes, an urge to flee. The question behind this essay is whether that description names a natural kind, a biologically given pattern that occurs whenever fear occurs, or a category that people use to make sense of highly variable states. The answer shapes what emotion science looks for, how it interprets its data and, for this site, what it could mean to measure an emotion at all.

Two positions define the debate. They are not the only ones; appraisal theories (Theory 03) and dimensional accounts occupy intermediate ground. But the contrast between basic emotion theory and the theory of constructed emotion is the sharpest version of the question, and it has driven much recent research.

Basic emotion theory

The argument

In its classic statement, basic emotion theory argues that emotions evolved because of their adaptive value in dealing with fundamental life tasks, such as facing danger, losing something valued or meeting an obstacle (Ekman, 1992). Each emotion has unique features: a signal, a physiology and typical antecedent events. Emotions also share characteristics that distinguish them from other affective phenomena: rapid onset, short duration, unbidden occurrence, automatic appraisal and coherence among responses. These shared and unique features are proposed to be products of evolution.

The reasoning is functional and comparative. If certain predicaments recurred throughout evolutionary history, organisms that responded to them with coordinated, fast, pre-organised packages of physiology, action and signal would have had an advantage. Signals, especially facial and vocal expressions, would allow others to anticipate a person’s behaviour. On this view, emotion categories are not inventions of language but discoveries of biology.

How the theory has changed

Later statements refined the claim. Basic emotions are described not as single states but as families of related states sharing a set of characteristics that distinguish one family from another; these responses are preprogrammed and involuntary but also shaped by life experience (Ekman & Cordaro, 2011). Culture and learning influence when emotions are elicited and how they are displayed, without, on this view, removing the underlying family structure.

More recent work by proponents has widened the list considerably. A 2019 review reports studies in which upwards of 20 emotions are signalled in multimodal and dynamic patterns of expressive behaviour, moves beyond simple matching of words to faces, and considers contextual influences upon emotion recognition (Keltner, Sauter, Tracy, & Cowen, 2019). A large self-report study found that experiences elicited by 2,185 short videos were better captured by 27 categories than by dimensions such as valence and arousal, but that the boundaries between categories were fuzzy and linked by smooth gradients (Cowen & Keltner, 2017). That result is notable because it supports categories while contradicting the idea that they are discrete.

Readers should therefore be careful with criticism aimed at “six universal facial expressions”. Current basic emotion theory is broader and more context-sensitive than the version often attacked. The site records the position as stated by its proponents (basic emotion theory).

The theory of constructed emotion

Core affect

Constructionist accounts begin from a different observation: emotional states vary enormously within categories. Anger can involve shouting or cold silence, a racing heart or a slow one. James Russell proposed that at the heart of emotion, mood and any other emotionally charged event are states experienced as simply feeling good or bad, energised or enervated, which he called core affect (Russell, 2003). People have no direct access to what causes changes in core affect. Core affect can be experienced as free-floating, as in mood, or attributed to some cause, and thereby begin an emotional episode. Prototypical episodes such as fear and anger are, in this framework, core affect attributed to something, plus various non-emotional processes. See affect.

Construction through prediction and concepts

Lisa Feldman Barrett’s theory of constructed emotion develops this into a broader account (Barrett, 2016). The article argues that emotion science has searched for the biological basis of folk-psychological categories inherited from philosophy, and proposes instead to begin with how the nervous system is organised and to deduce what emotions might be. The resulting account is computational and predictive. Bodily regulation is proposed to rest on predictions about the body’s needs; interoceptive signals are interpreted in light of past experience; and emotion concepts are used to categorise those signals in context. An instance of fear is, on this view, constructed when sensations are categorised as fear in a situation, not triggered as a fixed programme (theory of constructed emotion).

Two predictions follow. First, emotion categories should show variation rather than fixed signatures: different instances of anger can involve different physiology and behaviour. Second, the ingredients of emotion should be domain-general: the same systems for regulating the body, predicting and conceptualising should be involved in emotional and non-emotional states.

What the evidence shows

Neither theory can be settled by a single study, and both sides cite substantial bodies of work. The following findings have been central.

Neuroimaging

A meta-analytic review of neuroimaging studies compared a locationist hypothesis, that discrete emotion categories consistently and specifically correspond to distinct brain regions, with a psychological constructionist hypothesis, that emotion categories are constructed from more general networks not specific to those categories (Lindquist, Wager, Kober, Bliss-Moreau, & Barrett, 2012). The authors found little evidence that discrete emotion categories can be consistently and specifically localised to distinct brain regions. Instead, a set of interacting regions commonly involved in basic psychological operations of both an emotional and non-emotional nature were active across a range of emotion categories.

Two cautions apply. The pooled studies are correlational: activation during a task is associated with the task, not shown to produce the emotion. And a failure to localise categories to regions does not rule out category-specific patterns distributed across networks, which multivariate methods look for. The article was published with peer commentaries, some of them critical. See also the site’s discussion of reverse inference.

Autonomic physiology

A meta-analysis of 202 studies found that autonomic nervous system responses did not clearly distinguish one emotion category from another and varied substantially within categories (Siegel et al., 2018). An earlier review of 134 publications reported considerable autonomic specificity when emotion subtypes are considered (Kreibig, 2010). The two are not simply opposed: the earlier review grouped responses more finely, while the later meta-analysis tested consistency across studies. The site cites Kreibig only as a partial counterpoint.

Faces

A major review concluded that facial movements are not reliable, specific indicators of emotional states across people, situations and cultures: typical configurations co-occur with emotions more often than chance, but weakly and inconsistently (Barrett, Adolphs, Marsella, Martinez, & Pollak, 2019). Proponents of basic emotion theory respond that expression is multimodal and dynamic and that recognition is context-sensitive, which they take to be compatible with emotion families (Keltner et al., 2019). The two sides partly agree on the data, weak and variable coherence, and disagree on what it implies. The consequences for measurement are discussed in the Research note on measuring emotion.

Self-report

Self-report studies, including the 27-category study above, show that people distinguish many categories of experience reliably. Basic emotion theorists take this as evidence of rich category structure. Constructionists take the same evidence as showing how people use emotion concepts, which is what their theory predicts, and note that gradients between categories fit variation better than discrete kinds.

Reading the debate carefully

The debate is often presented as a choice between “emotions are universal and biological” and “emotions are cultural and invented”. Both sides reject that caricature. Basic emotion theory allows for learning, culture and context. The theory of constructed emotion is explicitly biological; it disagrees about how biology is organised, not whether it matters.

The real points of disagreement are narrower:

• Are emotion categories natural kinds? Does fear have a consistent biological core that defines it, or is it a population of varied instances grouped by a concept?
• Where does specificity lie? In dedicated programmes for each emotion, or in the combination of general-purpose processes in context?
• What counts as disconfirming? Proponents of each side argue that the other’s theory can absorb unfavourable data. Critics of the constructionist view argue that a broad predictive framework is hard to falsify; critics of basic emotion theory argue that each failure to find signatures is explained by adding moderators.

There is also a methodological lesson. Both sides now agree that emotional responses vary more than early theories assumed, and that context has to be part of any account. The dispute is about how to explain that variation.

Implications for “measuring” emotion

For this site, the most practical consequence concerns what can be inferred from a signal. Here the two theories converge more than their rhetoric suggests.

Under basic emotion theory, emotion families are real, but their signals are probabilistic, multimodal and moderated by context. A single facial movement, heart rate change or skin conductance response is not a reliable indicator of which emotion is present. Under the theory of constructed emotion, there is no fixed signature to find, and any inference about an emotion from signals is a categorisation that depends on context and concepts. Either way, the defensible statement is the same: a recorded signal is consistent with several states, and emotion categories can be inferred only with uncertainty, from patterns in context.

This is why the site distinguishes signal, feature, inference and context, and why it treats any claim that a device or model reveals what someone feels as overreach. It is also why the artwork’s telemetry is labelled ARTISTIC: its numbers are not measurements of an emotion, under either theory. See the methods page.

The debate also bears on regulation research. If emotion generation and regulation are distinct processes, regulation strategies act on an emotion that already exists. If emotions are constructed, regulation may be part of the construction itself. Gross and Barrett argued that whether the two can be usefully distinguished depends on one’s theoretical perspective (Gross & Feldman Barrett, 2011), and the process model can be read in either way (Theory 02).

Implications for catharsis

The hydraulic idea of catharsis fits most naturally with a view of emotion as a discrete, bounded quantity that exists before it is expressed. Neither current theory supports that picture straightforwardly. Basic emotion theory describes rapid, short-lived responses rather than stored quantities. Constructed emotion theory describes ongoing construction, in which expressing and describing an emotion are part of how the emotion is made.

As interpretation, the constructionist view offers one reason why expression without reframing might keep an emotion going: repeatedly categorising one’s state as anger, in a context that affirms the grievance, reconstructs anger. The basic emotion view offers a different reason for the same observation: re-exposure to the eliciting appraisal re-triggers the response. Both are compatible with the empirical finding that rehearsal while venting tends to maintain anger (Theory 01). Neither requires a reservoir that empties.

What this essay concludes

The debate between basic and constructed emotion is live, and the site does not take a side on what emotions ultimately are. Current evidence supports three narrower statements. Proponents of basic emotion theory now describe a larger, more context-sensitive set of emotion families than early versions. Meta-analyses of neuroimaging and autonomic physiology provide little support for consistent, specific signatures of emotion categories, with a recorded counterpoint for autonomic subtypes. And under either theory, emotions are inferred from patterns in context with error, never read off a single signal. That last statement is the one this site depends on.