300 Vibrotactile Stimuli in Mobile Devices: Exploring and Estimating the Effect of 5 Vibrotactile Parameters on Emotional Responses

This paper explores the emotional responses of vibrotactile stimuli in mobile devices. Previous studies have limitations in parameter setting, experimental equipment, and emotion estimation. To address these, we constructed a parameter system and conducted an experiment with 25 participants to explore emotional responses to 300 vibrotactile stimuli. Quantitative results revealed that all 5 parameters significantly influenced emotional responses. Qualitative results indicated that participants’ perceptions of vibrotactile stimuli influenced by various factors, including physical perception differences, personal cognition and experiences, emotional resonance, and crossmodal perception. In addition, an artificial neural network model was developed to estimate vibrotactile emotional responses, demonstrating sufficient accuracy. This study provides guidelines for the emotional design of vibrotactile feedback in mobile devices.