소리의 음성적 특성과 형태 간의 교차양태 관련성

Abstract

Our brain tends to associate stimulus features across the senses in a non-random manner. For example, people show consistency in labelling a rounded shape ‘maluma’/‘bouba’ and a spiky shape ‘takete’/‘kiki’. Previous studies have attributed this phenomenon to the correspondence between sound and shape, but without controlling for other potential factors (i.e., linguistic/orthographical factors). The present study examines the role of acoustic aspect per se by manipulating articulatory gestures to generate synthetic speech sounds not confined to a specific language. Participants were asked to choose either a rounded or spiky shape to indicate the shape that better matched each synthetic speech sound. The results demonstrate that shape choice was systematically mapped on to the dimensions manipulated to generate the sounds. These results indicate that acoustic features indeed drive the association between sound and visual shape.