Investigating the effect of electroadhesion tactile feedback on accuracy and efficiency of Steering tasks

Abstract

Tactile interaction technology has brought much convenience to user’s study and life. The interaction accuracy and efficiency of mobile terminals are widely investigated in intelligent human–computer interaction (HCI). The introduction of tactile feedback is of great importance for improving the usability and commerciality of interactive interfaces. This study investigates the effect of tactile feedback on mobile terminal interaction performance on the basis of electroadhesion tactile feedback widely used in touch screen interaction with bare finger. There are two different positions called intra-tunnel electroadhesion and extra-tunnel electroadhesion. There are five different perceived intensities (0, 5, 10, 15, 20 PI). A total of ten combinations of different positions and perceived intensities are used to study the effect of electroadhesion tactile feedback on accuracy and efficiency of steering tasks. The results show that electroadhesion tactile feedback can improve the efficiency, especially inside the tunnel. But there is no significant difference in accuracy. Meanwhile, intra-tunnel electroadhesion can improve the efficiency while bringing a better interaction experience according to the subjective evaluation. Our findings suggest that electroadhesion should be applied inside the tunnel as a guiding signal and offer insights on future touch screen interactions.