Preference for Curvature in Paintings Extends to Museum Context

In the last two decades, contour shape has been widely studied as a factor in visual aesthetic preference. Many studies have shown that humans and other species usually prefer curved to sharp-angled contours. The reasons for this preference, although keenly debated, still remain unclear. Studies of preference for curvature have tended to rely on simple visual stimuli due to the need to control confounding variables, which has limited investigation of this effect in complex stimuli like artworks. Our objective in this study was to test whether the effect of preference for curvature can be extended to the art domain in an ecologically valid setting. We conducted two studies using original artworks exhibited in a museum context. Stimuli consisted of a series of 48 paintings divided into 16 sets with three versions in each set: one curved, one sharp-angled, and one mixed, while color, size and style were controlled for across each set. In both studies, we recorded participants' preferred viewing distance and responses about liking and wanting the paintings. The results showed that participants looked at the curved paintings from a closer distance than the sharp-angled paintings, which we used as an implicit measure of approachability. Participants also liked and wanted the curved paintings significantly more than the sharp-angled paintings. We conclude that contour curvature is an important perceptual factor in people's aesthetic judgments about artworks viewed in an ecologically valid setting.