We report an experiment investigating how stimulus complexity and conceptual fluency (i.e., the ease of deriving meaning) influence aesthetic liking judgments for abstract artworks. We presented participants with paintings at two levels of complexity (high vs. low) and five levels of conceptual fluency (determined from a prior norming study) and requested separate ratings of beauty and creativity. Our predictions were derived from the PIA Model (Pleasure-Interest Model of Aesthetic Liking by Graf & Landwehr, 2015), which views aesthetic preferences as being formed by two, distinct fluency-based processes: an initial, automatic, stimulus-driven, default process and a subsequent, perceiver-driven deliberative process. A key trigger for deliberative processing is assumed to be disfluency at the default stage, as caused by factors such as visual complexity. We predicted that complexity and conceptual fluency would interact in determining aesthetic liking, with people preferring complex stimuli, but only when these are relatively easy to process conceptually. Our results supported this prediction for beauty judgments, although creativity judgments showed a curiously uniform profile. Nevertheless, the predictive capacity of the PIA Model in relation to beauty judgments attests to the explanatory strength of this default-interventionist theory of aesthetic liking. We conclude by noting important parallels between the PIA Model and the Revised Optimal Innovation Hypothesis (Giora et al., 2017), which likewise has broad reach in explaining how defaultness and non-defaultness affect pleasure across a range of linguistic and pictorial stimuli.-3 -
Abstract Art: Evidence for a Default-Interventionist AccountThe study of aesthetics and its causal determinants is one of the oldest disciplines of experimental psychology, deriving from the foundational research of Fechner (1876), who aimed to draw links between the objective properties of stimuli and people's aesthetic responses such as their judgments of beauty. This theme was taken up in earnest in the 20 th century by Berlyne (e.g., 1971Berlyne (e.g., , 1974, who focused on the underlying physiological mechanisms mediating between objective stimulus properties and aesthetic responses, with an emphasis on arousal states. More recently, Berlyne's insights and empirical findings have been refined as part of the contemporary "processing-fluency approach" to explaining aesthetic pleasure (for a review see Reber, Schwarz, & Winkielman, 2004a), which claims that people's aesthetic judgments are closely aligned with the subjective ease with which mental operations are performed when perceiving an object.Reber et al.'s (e.g., 2004a) processing-fluency theory has had a major bearing on the study of aesthetics and likewise has much relevance to the experiment we report here, which was concerned with the relation between processing fluency and aesthetic liking in the context of aesthetic judgments about abstract artworks. In motivating our study, we were keen to focus on a fluency facto...