Openness to Experience is the most contested of the Big Five dimensions. It has carried more names over its research history than any other domain, has been argued about more persistently, and holds within it a real internal heterogeneity that the other four dimensions mostly lack. It is also the dimension most associated with creativity, aesthetic sensitivity, and intellectual curiosity — and, among the Big Five, the strongest personality predictor of political orientation.
The core of the dimension is receptivity: a relatively stable tendency to engage with novel ideas, unfamiliar experiences, and unconventional perspectives. Where Conscientiousness describes how hard and how systematically a person works, and Extraversion describes how much social reward a person seeks, Openness describes how broadly a person casts the net of engagement with the world. High-Open people find novelty rewarding; low-Open people find the familiar reliable and the novel unnecessary.
The naming dispute and what it reveals
The fifth factor of the Big Five has been labeled Culture (Norman, 1963), Intellect (Goldberg, 1990), and Openness to Experience (McCrae and Costa). Each name reflected a different emphasis in what the original data seemed to show. Culture captured the aesthetic and cultivated-interest component; Intellect captured the curiosity and abstract-reasoning component; Openness to Experience attempted a broader frame that could accommodate both.
The tension between these emphases was not terminological; it reflected a real structure in the data. DeYoung, Quilty, and Peterson's 2007 paper in the Journal of Personality and Social Psychology demonstrated that the dimension is best characterized as two correlated but separable aspects. They called these Openness — engagement with aesthetic experience, imagination, perception, and fantasy — and Intellect — engagement with abstract ideas, reasoning, and intellectual discourse. Each aspect was marked by six distinct facets, suggesting roughly equal importance to the broader domain. Some researchers now use the compound label Openness/Intellect to signal that both are present.
The distinction has real predictive consequences. The Intellect aspect correlates more strongly with measured cognitive ability and working memory; the Openness aspect correlates more strongly with artistic interests, aesthetic sensitivity, and the breadth of emotional experience. Both contribute to creative output, but in different ways: the Intellect aspect predicts creative production requiring abstract cognition (scientific creativity, philosophical speculation), while the Openness aspect predicts creative expression in perceptual and experiential domains (art, music, fiction). A domain-level Openness score blends these contributions.
High and low Openness
People high in Openness engage readily with new ideas, unfamiliar aesthetic experiences, and alternative perspectives. They are attracted to complexity, willing to entertain possibilities without requiring resolution, and tend to have broad and varied intellectual and aesthetic interests. They adapt their values and framings when presented with compelling alternatives. In imaginative life, they have rich inner experience and find the hypothetical and the abstract more vivid than many people do. The typical liabilities of high Openness include difficulty prioritizing among many stimuli, discomfort with repetitive or closed-ended work, and in some cases a preference for novelty that makes sustained engagement with any single domain difficult.
People low in Openness are drawn to the familiar, the concrete, and the conventional. They prefer established methods over experimental ones, find clarity in defined categories, and tend to have focused rather than broad interests. They are typically more resistant to abstract or theoretical framing and more comfortable with practical and situational reasoning. The typical liability of low Openness is discomfort when tasks require engaging with genuine ambiguity or novel paradigms. The typical strength is depth over breadth — sustained expertise in a specific domain rather than broad sampling across many.
A common misreading treats low Openness as a cognitive shortcoming. It is not. Low-O individuals are not less intelligent; the correlation between Openness and measured intelligence is positive but modest, and is largely driven by the Intellect aspect rather than the experiential one. A highly capable engineer who works with established methods and prefers defined problems may well score low on Openness without any corresponding deficit in cognitive ability.
Facet structure
The NEO-PI-R decomposes Openness into six facets that map onto the two-aspect structure. The experiential cluster comprises Imagination (O1: richness of imaginative inner life), Artistic Interests (O2: responsiveness to art, music, and beauty), Emotionality (O3: depth and breadth of emotional experience), and Adventurousness (O4: preference for variety in daily life and discomfort with routine). The intellectual cluster comprises Intellect (O5: intellectual curiosity and engagement with abstract concepts) and Liberalism (O6: willingness to reexamine political, ethical, and social values).
These two clusters correspond to the Openness and Intellect aspects identified by DeYoung and colleagues. A person can score high on one cluster and moderate on the other; the correlation between clusters is positive but not so high that they function as a single thing. In practice, the facet profile carries considerably more information than the domain score: two readers who share an identical Openness percentile may differ substantially in whether that score reflects aesthetic and imaginative richness or intellectual curiosity about ideas.
The BFI-2 (Soto and John, 2017) reduces the six facets to three: Aesthetic Sensitivity (overlapping with Artistic Interests and Emotionality), Intellectual Curiosity (overlapping with Intellect and Imagination), and Creative Imagination (overlapping with Adventurousness and a broader creative tendency). The facets cluster covers each facet in depth.
Developmental trajectory
Openness shows a developmental pattern that differs from most other Big Five dimensions. Mean levels increase during adolescence — the period of identity formation, exposure to new ideas, and exploration of values — then remain relatively stable through much of adulthood. The decline comes primarily in old age, when Openness, along with the social-vitality facet of Extraversion, tends to decrease as people consolidate their commitments and reduce exposure to novelty. Roberts, Walton, and Viechtbauer's 2006 meta-analysis documented this pattern across ninety-two longitudinal samples.
The rank-order stability of Openness is somewhat lower than that of other Big Five dimensions, particularly compared to Conscientiousness and Neuroticism. Individuals can shift meaningfully in their Openness through sustained exposure to new domains — through education, travel, cross-cultural contact, and artistic practice — though such shifts require engagement over years rather than months, and some portion of the dimension is substantially heritable. The old-age decline in Openness is one of the more consistent findings in adult development and is not well explained by either the maturation account or the social-investment account that explain Conscientiousness changes; it may partly reflect cognitive changes that reduce the capacity for the kind of engagement Openness facilitates.
Predictive associations
Creative achievement. Openness is the Big Five dimension most consistently associated with creative output across studies. The association holds for both aspects, though with different profiles: Intellect predicts creative work involving abstract reasoning and conceptual combination, while experiential Openness predicts creative expression in perceptual and aesthetic domains. High-Openness individuals produce more creative work when studied longitudinally, and Openness is a reliable predictor of pursuit of artistic and intellectual vocations.
Political orientation. The most studied and most replicable personality-politics association is the relationship between Openness and liberal political orientation. Carney, Jost, Gosling, and Potter's 2008 paper in Political Psychology — drawing on six samples with multiple measurement techniques — found consistent evidence that liberals score higher on Openness than conservatives. McCrae had made the theoretical argument in 1996 that Openness constitutes the primary psychological basis for political differentiation; the 2008 synthesis provided convergent empirical support across self-reports, behavioral observation, and study of living spaces. The effect is stronger for social than for economic policy attitudes, and operates in a moderate range (correlations around r = .17). This is a consistent finding, not an overwhelming determination: political orientation depends on many things of which Openness is one. The complementary finding — that conservatives tend to score somewhat higher on Conscientiousness — rounds out the picture without either finding bearing the interpretive weight typically placed on it.
Educational attainment and academic engagement. Openness predicts academic interest, course selection, and engagement with learning, though its effect on grades is weaker and less consistent than Conscientiousness. High-Openness students explore more broadly, pursue intellectually demanding topics, and are more likely to enter fields that reward creative and abstract thinking. The predictive advantage of Conscientiousness over Openness for GPA probably reflects that grades reward systematic follow-through more than broad intellectual engagement.
Intelligence correlations. Openness correlates positively with measured cognitive ability in the range of r ≈ .20 to .30 in most samples, primarily through the Intellect aspect. This is a real association — intellectually curious people tend to score somewhat higher on ability tests, perhaps because they have more extensively practiced abstract reasoning — but the correlation is far too small to treat Openness as a proxy for intelligence. The experiential Openness aspect shows much weaker correlations with cognitive tests.
What Openness is not
Two conflations worth naming. First, Openness is not intelligence, though the Intellect aspect correlates modestly with it. A high-O person is not necessarily smarter; a low-O person is not intellectually limited. Second, Openness carries a weak association with vulnerability to certain mood and anxiety symptoms, which has sometimes led to characterizations of high Openness as emotionally unstable or prone to mental illness. The empirical picture is more complicated: the association is mostly mediated through the overlap between high Openness and high Neuroticism in some individuals, not through Openness itself. A person who is high in Openness and low in Neuroticism — curious, imaginative, emotionally stable — is not at elevated mental health risk.
Cross-system mapping
The MBTI's Sensing-Intuition axis has the strongest alignment with Openness of any MBTI-Big Five pairing after the J/P-Conscientiousness relationship. Intuition correlates positively with Openness, Sensing negatively — particularly with the experiential and imaginative facets. McCrae and Costa's 1989 study in the Journal of Personality documented this, and the replication is robust. In socionics, the Intuition-Sensing dichotomy carries surface overlap with the same mapping, though again the correspondence breaks down as one gets into the mechanistic details of either framework.
In the Enneagram, Type 4 and Type 5 consistently appear at the high end of Openness scores in empirical studies — Type 4 through the aesthetic and emotional facets, Type 5 through the intellectual facets. Types with lower average scores include Type 6 (particularly phobic) and Type 8. These patterns reflect central elements of each type's motivational structure, but individual variation within types is substantial, and Enneagram membership should not be read as predicting Openness with any precision.
For your own placement on this dimension, take the Big Five test. The research page covers the broader cross-cultural and heritability evidence for the dimension.