Katri Hiovain, Dan Dediu, Jochen Zeller, Susanne Fuchs, Özlem Ünal-Logacev, Marcus Perlman, Jing Paul, Ádám Szalontai, Rachid Ridouane, Christoph Draxler, Eva Liina Asu, Nathalie Schümchen, Bodo Winter, Manfred Krifka, Sofia Koutalidis, Shigeto Kawahara, Sabine Reiter, Grace E. Oh, Pärtel Lippus, Gary Lupyan, Caterina Petrone, Aleksandra Cwiek, Laboratoire Parole et Langage (LPL), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Department of Digital Humanities, Phonetics and Speech Synthesis, LPP - Laboratoire de Phonétique et Phonologie - UMR 7018 (LPP), Université Sorbonne Nouvelle - Paris 3-Centre National de la Recherche Scientifique (CNRS), Humboldt University Of Berlin, Keio University, Universität Bielefeld = Bielefeld University, University of Tartu, Dynamique Du Langage (DDL), Université Lumière - Lyon 2 (UL2)-Centre National de la Recherche Scientifique (CNRS), Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Universität Bielefeld, University of Southern Denmark (SDU), Konkuk University [Seoul], Agnes Scott College, Universidade Federal do Parana [Curitiba] (UFPR), Universidade Federal do Paraná (UFPR), Hungarian Research Centre for Linguistics, Istanbul Medipol University, University of KwaZulu-Natal [Durban, Afrique du Sud] (UKZN), University of Birmingham [Birmingham], and ANR-16-IDEX-0005,IDEXLYON,IDEXLYON(2016)
The bouba/kiki effect—the association of the nonce word bouba with a roundshape and kiki with a spiky shape—is a type of correspondence betweenspeech sounds and visual properties with potentially deep implicationsfor the evolution of spoken language. However, there is debate over therobustness of the effect across cultures and the influence of orthography.We report an online experiment that tested the bouba/kiki effect acrossspeakers of 25 languages representing nine language families and 10 writing systems. Overall, we found strong evidence for the effect acrosslanguages, with bouba eliciting more congruent responses than kiki. Participants who spoke languages with Roman scripts were only marginallymore likely to show the effect, and analysis of the orthographic shape ofthe words in different scripts showed that the effect was no stronger forscripts that use rounder forms for bouba and spikier forms for kiki. Theseresults confirm that the bouba/kiki phenomenon is rooted in crossmodal correspondence between aspects of the voice and visual shape, largelyindependent of orthography. They provide the strongest demonstrationto date that the bouba/kiki effect is robust across cultures and writingsystems.This article is part of the theme issue ‘Voice modulation: from origin andmechanism to social impact (Part II)’. The bouba/kiki effect - the association of the nonce word bouba with a round shape and kiki with a spiky shape - is a type of correspondence between speech sounds and visual properties with potentially deep implications for the evolution of spoken language. However, there is debate over the robustness of the effect across cultures and the influence of orthography. We report an online experiment that tested the bouba/kiki effect across speakers of 25 languages representing nine language families and 10 writing systems. Overall, we found strong evidence for the effect across languages, with bouba eliciting more congruent responses than kiki. Participants who spoke languages with Roman scripts were only marginally more likely to show the effect, and analysis of the orthographic shape of the words in different scripts showed that the effect was no stronger for scripts that use rounder forms for bouba and spikier forms for kiki. These results confirm that the bouba/kiki phenomenon is rooted in crossmodal correspondence between aspects of the voice and visual shape, largely independent of orthography. They provide the strongest demonstration to date that the bouba/kiki effect is robust across cultures and writing systems. This article is part of the theme issue 'Voice modulation: from origin and mechanism to social impact (Part II)'.