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Ekman's basic emotions and universal faces
1969–1972· Theory or model
Mixed evidenceSome support; effects smaller or less consistent than once thought.
Paul Ekman's theory that a few emotions, such as fear and anger, are universal, each with a recognizable facial expression.
See it on the Psychology map →What it says
In 1969 Paul Ekman and colleagues showed photos of posed faces to people in the US, Brazil, Japan, New Guinea and Borneo; most matched them to the same emotions. In 1971 he and Wallace Friesen found similar agreement among the Fore of Papua New Guinea, who had little contact with outsiders. He named six basic emotions: happiness, sadness, anger, fear, surprise and disgust; contempt came later. A 1972 study suggested cultures differ mainly in 'display rules' about when to show feelings.
Why it matters
It became the standard view for decades, shaping Pixar's Inside Out, lie-detection training, airport screening and AI software that claims to read emotions from faces.
The evidence
Status: mixed evidence. Smiles are recognized nearly everywhere, but a 2019 review of over 1,000 studies found people often don't make the predicted faces, and recognition drops when participants name emotions freely.
Open questions
Whether spotting fleeting 'microexpressions' detects lies, as Ekman's training claimed; independent tests find little better than chance, and US auditors faulted an airport program based on it.
Connections (3)
▸Evolutionary psychology offers a survival-based account of Ekman's basic emotions and universal facesMixed evidence
The connection
Darwin argued in 1872 that expressions are inherited from ancestors. Evolutionary psychologists extended this: each basic emotion readies body and mind for a recurring survival problem, such as fear for predators, disgust for disease and anger for bargaining. A 2008 study found the fear face widens the eyes, taking in more of the visual field, while disgust narrows the nostrils.
Who showed it and when
Darwin in England, 1872; Ekman's cross-cultural studies, 1960s–70s; John Tooby and Leda Cosmides at UC Santa Barbara, 1990; Joshua Susskind and Adam Anderson's 2008 face study in Toronto.
How solid is it?
Measured eye and nostril changes support a functional origin for some expressions, but the claim that all six are separate adaptations rests mostly on plausible reasoning.
Open questions
Whether emotions are distinct evolved programs or built from general ingredients like arousal and pleasantness; stories about the ancestral past are hard to test.
▸WEIRD samples: who psychology studies challenge universal claims of Ekman's basic emotions and universal facesMixed evidence
The connection
Ekman's high agreement rates came mostly from people with Western schooling or media exposure, choosing from lists of emotion words. When researchers visited more remote groups and let people describe faces freely, agreement dropped. Namibia's Himba sorted faces by behavior, such as laughing, rather than emotion categories, and Trobriand Islanders read the wide-eyed 'fear' face as threatening.
Who showed it and when
James Russell's 1994 critique; Maria Gendron and Lisa Feldman Barrett with the Himba of northwestern Namibia, 2014; Carlos Crivelli in Papua New Guinea's Trobriand Islands, 2016.
How solid is it?
Published field studies show recognition falls with free labeling and less Western contact, although smiles are read as happy nearly everywhere.
Open questions
Whether gaps reflect real cultural variation or translation and method problems. A 2021 analysis of 6 million videos from 144 countries found expressions occur in broadly similar contexts worldwide.
▸Ekman's basic emotions and universal faces are the classic theory of Emotions and how they workMixed evidence
The connection
Basic-emotion theory says a handful of emotions are built-in programs, each with its own trigger, face, body pattern and urge: fear prepares escape, disgust rejects contamination. Other feelings are blends. It dominated research from the 1970s, shaping facial coding systems and emotion-reading software. Its chief rival, constructionism, says emotions are assembled from general body states and learned concepts.
Who showed it and when
Silvan Tomkins in the 1960s; Paul Ekman at the University of California, San Francisco; Ekman and Wallace Friesen's Facial Action Coding System, 1978; Lisa Feldman Barrett's How Emotions Are Made, 2017.
How solid is it?
Cross-cultural recognition studies support it; brain-imaging meta-analyses, such as one in 2012, found no single region dedicated to each emotion, weakening the strongest version.
Open questions
Whether emotions are natural categories, like species, or culturally shaped concepts, like 'weekend'; many researchers now take positions in between.