Aesthetic perception is an inseparable part of the decision-making process in daily life. It also is an important part of the beauty and therefore tastes. The determination of preferences is directly related to the subregions of the PFC. The contour is the essential visual attribute for accurately perceiving the form of an object. It has been known that sharp angles cause an implicit perception of threat, and perceived security is related to aesthetic pleasure. The aim of the study is to investigate the effect of contour type on decision making and aesthetic perception in PFC. The study using the fNIRS method has shown that there is a marginal significant relation between liking, contour type, and PFC areas (F(3.81)=2.225, p>.092, η2=.076). Current findings suggest that left mPFC, FPC, and right dlPFC have a significant contribution to the liking of curved objects.

Decision-making is a combination of our positive anticipations from the future with the contribution of our past experiences, emotions, and what we perceive at the moment. Therefore, the cues perceived from the environment play an important role in shaping the decisions. Contours, which are the hidden identity of the objects, are among these cues. Aesthetic evaluation, on the other hand, has been shown to have a profound impact on decision-making, both as a subjective experience of beauty and as having an evolutionary background. The aim of this empirical study is to explain the effect of contour types on preference decisions in the prefrontal cortex through risk-taking and aesthetic appraisal. The obtained findings indicated a relation between preference decision, contour type, and PFC subregion. The results of the current study suggest that contour type is an effective cue in decision-making, furthermore, left OFC and right dlPFC respond differently to contour types.