Do People Prefer Curved Objects? Angularity, Expertise, and Aesthetic Preference

Do people prefer curved lines, shapes, and objects over angular lines, shapes, and objects? Angularity is one of the oldest variables in the psychology of aesthetics, but past research has not always controlled for potential confounds. Two experiments manipulated angularity while controlling for symmetry, prototypicality, and balance. Study 1 used arrays of circles and hexagons from the Preference for Balance Test. Study 2 used asymmetrical random polygons; each polygon was digitally rounded to create angular and curved versions. As predicted, people preferred the round circles more than the angular hexagons and the curved polygons more than the angular polygons. Both experiments explored whether individual differences in expertise in the arts moderated angularity's effect on preference. Multilevel models showed that training in the arts interacted with angularity, but the pattern of the interaction varied between the two experiments.