Creativity Is Optimal Novelty and Maximal Positive Affect: A New Definition Based on the Spreading Activation Model

N1 and LNC reveal the differential electrophysiological signatures of functional and hedonic images processing

In the process of creative sentence or phrase utilization, novel and appropriate evaluations cause the different brain responses observed in event-related potentials: the N400 reflects the novelty evaluation, whereas a late negative component marks appropriate processing. Do we have similar brain reactions in image perception when we rapidly browse pictures of objects with different novelty, functional/appropriate, and hedonic value? To explore this question, participants were presented with four novel object images with high or low functional and hedonic properties, as well as the ordinary product images, with the instruction to attentively observe and understand each image. We found a clear dissociation between processing of novelty and functional value: novelty objects produced negative deflections in the N2-N400 time window relative to the ordinary object images, whereas images with high functional value elicited a larger N2 and late negative waves (LNC) resembling the late component found for the appropriate phrases. Object images with high hedonic value, however, were associated with earlier aesthetic preference reflected in smaller N1 amplitudes, but failed to elicit a LNC effect. We therefore conclude that the processing of novelty, functional, and hedonic value are dissociation, and the perception of hedonic value is earlier (N1) than the novelty processing (N400) and the verification of functional value (LNC).

Controlling stimulus ambiguity reduces spurious creative ideation variance in a cyclic adaptation of the alternative uses task

In the alternative uses task (AUT), a well-established creativity assessment, participants propose alternative uses for common items (e.g., a brick) within a 2-3 min timeframe. While idea evaluation is likely involved, the emphasis is strongly on idea generation. Here, we test the value of presenting a word overlapping an image compared to a word only prompt, and we introduce a cyclic adaptation of the AUT explicitly calling on participants to choose their best idea. In Experiment 1, as compared to word only, word + image prompts increased idea fluency but reduced idea originality and variability within a group of native Polish speakers. Thus, word + image prompts improve AUT baselining. In Experiment 2, different participants produced as many ideas as possible within two minutes (List) or their single best idea at the end of each of three 30 s ideation cycles (Cycle). Although originality did not differ between List and Cycle overall, the first three ideas in List were rated as less creative than the ideas in Cycle. Overall, we conclude that using disambiguating images reduces spurious interindividual variability in the AUT while introducing idea evaluation in the task allows us to assess creativity beyond idea generation.

Investigating divergent thinking and creative ability in surgeons (IDEAS): a survey protocol

INTRODUCTION

A strong pipeline of creative ideas and individuals is critical if we are to tackle the complex healthcare challenges we will face in the 21st century. The field of creativity is severely underinvestigated in the context of surgery, and it is of interest to explore the level and nature of creativity in surgeons, across various specialties and backgrounds. Identifying the areas of surgery with strong and weak levels of creativity, as well as the predictors of high creativity among surgeons, may aid in the selection and training of future surgeons.

METHODS AND ANALYSIS

A convenience sample of surgeons from the Department of Surgery and McMaster University will be used for the recruitment of participants. The Abbreviated Torrance Test for Adults, a three-part test of divergent thinking ability, will be administered to measure the level and nature of creativity among surgeons. Descriptive analyses and multiple linear regression models are planned to synthesise the results of the survey and identify predictors of divergent thinking ability among surgeons.

ETHICS AND DISSEMINATION

Ethics approval from the Hamilton Integrated Research Ethics Board was obtained. No harm is expected due to participation in this study. The results of this survey will be published in a peer-reviewed journal and disseminated through conferences and presentations at the regional, national and international levels.