The Kiki Bouba test investigates the link between the visual shape of an object and the sound associated with it. Participants are presented with two shapes, one rounded and one spiky, and asked to choose which one is called “kiki” and which one is called “bouba.” The test reveals a cross-modal correspondence, where most people associate the rounded shape with “bouba” and the spiky shape with “kiki,” suggesting that certain sounds may evoke specific visual images or shapes. This test has implications for understanding sound symbolism and the relationship between language and perception.
