| Abstract |
| This study explored whether tactile and auditory stimuli share modality-general affective representations. To investigate this, tactile and affective responses to tactile and auditory stimuli were analyzed and compared using a tactile model based on roughness and hardness. Based on previous and newly collected data, a representational similarity analysis (RSA) was conducted on evaluation ratings for tactile (roughness × hardness) and auditory (roughness × hardness) stimuli. The RSA results indicated that tactile and affective ratings were similar across both tactile and auditory stimuli. Notably, roughness played a significant role in both auditory and tactile stimuli, whereas hardness was crucial for tactile stimuli but was relatively less important for auditory stimuli. A mixed ANOVA revealed that tactile responses were more similar for tactile stimuli, whereas affective responses were more similar for auditory stimuli. Additionally, the roughness + hardness model was provided the best fit for tactile stimuli, whereas the roughness-only model was more appropriate for auditory stimuli. These findings suggest the potential existence of modality-general affective experiences and that the perceptual dimensions essential for tactile stimuli may not apply in the same way to the tactile perceptions of auditory stimuli. In other words, while affective experiences can be consistent across modalities, perceptions may differ. This study extends prior research by empirically examining modality-general affective representations across tactile and auditory stimuli, demonstrating the need for further research to explore multisensory affective representations. |
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| Key Words |
| Modality-General Affective Representation, Representational Similarity Analysis, Roughness, Hardness, 감각보편적 정서 표상, 표상 유사성 분석(RSA), 거칠기, 경도 |
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