THE ROLE OF HAPTIC MATERIAL PERCEPTION IN NAMING THE EXPLORATORY PROCEDURES

Date

2023-12-01

Author

Yıldız, Gamze
Dövencioğlu, Nahide Dicle

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Recent studies have shown that the perception of softness in humans goes far beyond the soft-hard axis and can be dened perceptually in multiple dimensions. Perceptual dimensions of softness have been listed as surface softness, deformability, granularity, and uidity. In addition to perceptual dimensions, stereotypical exploratory hand gestures (exploratory procedures, EPs) that enable us to obtain information for each dimension were also determined. However, studies addressing the issue have been conducted and reported in English. Although the Turkish equivalents of the English names of everyday objects can be easily found with the help of a dictionary, it is thought that one- to-one translation is only sometimes satisfactory for the EPs accompanying these objects. On the other hand, how individuals name these EPs and the inuence of object properties on naming these have yet to be known well. To this end, in this study, we aim to examine whether naming EPs with Turkish verbs varies according to the previously dened perceptual softness dimensions. Twenty-eight Turkish native speakers participated in a free-naming study that involved videos showing 37 material-exploratory procedure combinations. Twenty-one deformable, granular, furry, uid, and non-soft materials and eight EPs, pressing, rubbing, rotating, running through, stirring, pulling, tapping, and stroking, were used in the experiment. Even though the movements themselves played a dominant role in the participants' naming of the EPs in Turkish, we observed that the softness characteristics of the materials were also inuential. In other words, we observed different naming of the same hand movement when applied to different materials. Chi- square analysis results suggest that participants use different Turkish verbs to indicate the same EP depending on the material seen. The results illustrate a systematic variation in participants' naming of the haptic exploratory procedures as the materials differ regarding softness features.

Subject Keywords

Visual Perception, Haptic Perception, Material Properties, Softness Dimensions, Exploratory Hand Movements

URI

https://doi.org/10.33171/dtcfjournal.2023.63.2.18
https://hdl.handle.net/11511/107902

Collections

Department of Psychology, Article