The aim of the presented protocol is to investigate the role of visual imagery in the bouba/kiki-effect, whether training in noticing the bouba/kiki shape-audio regularities affects the bouba/kiki-effect and the recognition of individual bouba and kiki shapes, and finally what mental images these regularities produce.
Graven, T., Desebrock, C. Investigating the Effect of Visual Imagery and Learning Shape-Audio Regularities on Bouba and Kiki. J. Vis. Exp. (151), e59954, doi:10.3791/59954 (2019).