With the advent of technology, tactile stimuli are adopted widely in many human-computer interactions. However, their perceptual and emotional characteristics are not much studied yet. In this talk, to help in understanding these characteristics, I will introduce my perception and emotion studies, as well as my future research plan. For perceptual characteristics, I will introduce an estimation method for perceived intensity of superimposed vibrations, verbal expressions for vibrotactile stimuli, and adjectival magnitude functions. Then, I will present a vibrotactile authoring tool that utilizes the adjectival magnitude functions as an application. For affective characteristics, I will introduce my emotion studies that investigate the effects of physical parameters of vibrotactile and thermal stimuli on the emotional responses using the valence-arousal space (V-A space). Then, as an application, I will present an emotion augmenting method that changes the emotion of visual stimuli in mobile devices using tactile stimuli.
Biography: Yongjae Yoo received his BS and Ph.D. degrees from POSTECH, South Korea, in 2011 and 2019, respectively. He is a beneficiary of Global Ph. D. fellowship from the National Research Foundation of Korea from 2011 to 2016, and he is the recipient of the IEEE World Haptics Conference 2017 best poster paper award. His research interests include haptic perception, affective haptics, haptic HCI, and assistive technology.