Synesthesia and common recognition concerning music and colour

Abstract

This paper discusses the common recognition of music and colour from the viewpoint of synesthesia. The focus is especially placed on coloured hearing synesthesia. Coloured hearing synesthestesia experiences a crossing of senses where a brain recognizes music aurally as colour. An experiment, in the format of questionnaires, was conducted where subjects were required to listen to music and select a representative colour for the music. The analysis of the questionnaires obtained the following results: it suggested that synesthesia exists at a subconscious level in human beings and that synesthesia is caused by influences of common recognition of music and colour associations.