Performance of the Rotation Gesture Based on Electrostatic Tactile Feedback Devices

The application of electrostatic tactile feedback to a touchscreen can provide a real sense of immersion to enhance the user interaction experience. With a custom-designed electrostatic tactile feedback device, we explore the effect of electrostatic tactile feedback on performing rotation gestures. Specifically, we design three-part experiments that include no tactile feedback, tactile feedback in the target area and tactile feedback increased linearly in the process. The effect of electrostatic tactile feedback on performing rotation gestures is then examined. The results with 12 participants indicate that adding tactile feedback to the process or the target area significantly enhances the efficiency and accuracy of rotation operations. In addition, the relationship between the index of difficulty (ID) and rotation time (RT) is studied by applying electrostatic tactile feedback in the process and the target area. The results indicate that the relations between ID and RT under the above two conditions satisfy Fitts' Law with correlation coefficients >0.96.