Aesthetic judgments were investigated using a combined nomothetic and idiographic approach. Participants judged novel graphic patterns with respect to their own personal definitions of "beauty." Judgment analysis was employed to derive individual case models of judgment strategies as well as a group model. As predicted, symmetry had the highest correlations with aesthetic judgments of beauty. Stimulus complexity was the second-highest correlate of a positive evaluation. Thus, there was agreement at the group level. The judgment analyses, however, indicated substantial individual differences. These included use of symmetry or complexity cues that were contrary to the main group use, e.g., a few participants considered nonsymmetric patterns more beautiful. These findings suggest that exclusive consideration of the group model would have leveled the individual differences and been misleading. The group model is significant; however, the individual judgment analyses represent individual patterns of judgment in a notedly more accurate way.
An event-related brain potential (ERP) study comparing descriptive and evaluative judgment processes is reported. Using identical stimuli to isolate perceptual from judgmental processes, the two judgment types were operationalized by employing symmetry and aesthetic judgments. Electrophysiological activity was recorded while participants viewed newly designed two-dimensional patterns in a pre-cued task setting. Judgment analyses of a Phase I test and performance in the main experiment revealed detailed paramorphic models of the individual judges' cognitive systems as well as group models. Symmetry showeda strong positive correlation with judgments and was the most important cue in every case. Descriptive judgments were performed faster than evaluative judgments. The ERPs revealed a phasic frontal negativity in the non-aesthetic condition as well as a sustained posterior negativity in the symmetrical condition. All conditions showed late positive potentials (LPP). Evaluative judgment LPPs revealed a more pronounced right lateralization. It was concluded that descriptive symmetry judgment and evaluative aesthetic judgment processes differ dramatically and recruit, at least in part, different neural machinery.
Abstract. Evaluative aesthetic judgments and descriptive symmetry judgments were compared. Electrophysiological activity was recorded while participants judged the aesthetic value or the symmetry status of novel graphic black and white patterns. In order to experimentally separate judgment categorization processes and judgment report processes, participants were instructed to misreport their true actual judgment in half of the trials. Three effects found in a previous study were examined: (1) an early frontocentral effect for the evaluation of not-beautiful patterns reflecting an early impression formation, (2) a more pronounced ERP lateralization to the right for the aesthetic judgment task in comparison to the symmetry judgment task reflecting evaluative categorization, and (3) a sustained posterior effect for the visual analysis of symmetric patterns. In this study, (1) and (3) were replicated independent of the validity of the response, but (2) was affected by the validity, i.e., the effect was abolished in the false condition. Thus, results allowed further specification of cognitive processes involved in judgments of symmetry or aesthetics. Given present data, the ERP effects predominantly reflect judgment categorization and not judgment report.
Temporal stability and consistency of nonartists' aesthetic judgments of beauty of formal graphic patterns was assessed. Temporal stability decreased markedly over several months. When items were repeated in an aesthetic judgment task participants responded consistently over trials rather than performing genuine repeated aesthetic judgments of beauty.
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