Relationship between onomatopoeia and physical properties when pressing a soft object

要旨

In Japanese language, onomatopoeia is used to describe perceptions such as the state of the skin and the feeling of touch. Although some studies have examined the relationship between onomatopoeia and physical properties expressing haptic sensation, few studies have examined the relationship between onomatopoeia and physical properties of flexibility. In this study, we aim to clarify the relationship between onomatopoeia and physical properties of soft objects. We asked subjects to describe the tactile sensations of 12 different silicone gels using onomatopoeia under three conditions: visual only, tactile only, and visuo-tactile. The range and number of phonetic occurrences of the onomatopoeia were extracted, and the relationship between onomatopoeia and physical properties was investigated. While we did not observe distinct differences in the range and number of onomatopoeic sounds under each condition, we observed differences in the types of onomatopoeia recalled due to differences in hardness under all conditions. In addition, regression results based on quantification theory class I showed that some of the explanatory variables of onomatopoeia (e.g., second mora contracted sounds and second mora vowels) change their significant contribution to the onomatopoeia depending on the change in conditions, even for a physical property.

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