The role of Non-Representational Hand Gestures in creative thinking

Abstract

Previous studies suggest that representational gestures support divergent thinking and that mental imagery is necessary for gestures to aid convergent thinking. However, less is known about non-representational gesture use (i.e., beat and palm-revealing) during creative thinking. Across two experiments, we examined whether these gestures supported or hindered creativity and the effects of mental imagery on creative thinking. In Experiment 1, we tested both gesture-spontaneous and gesture-encouraged conditions during divergent thinking. Beat gestures, irrespective of condition, were negatively associated with originality in divergent thinking for individuals with high mental imagery. Encouraged palm-revealing gestures were negatively associated with fluency, flexibility, and elaboration in divergent thinking, regardless of mental imagery. In Experiment 2, we examined spontaneous gestures during both divergent and convergent thinking and assessed mental imagery vividness and skills. Beat gestures were negatively associated with convergent thinking for individuals with low or average imagery vividness. Similarly, palm-revealing gestures were negatively associated with convergent thinking for individuals with low mental imagery skills. Vividness of imagery was the only consistent positive predictor of divergent thinking. Spontaneous gestures were not associated with divergent thinking. These findings show that, unlike representational, non-representational gesture use does not facilitate and might even hurt creativity, depending on individual differences in mental imagery. © 2025 Elsevier B.V., All rights reserved.