%0 Journal Article %A Štrbac, Matija %A Isaković, Milica %A Malešević, Jovana %A Marković, Gorana %A Došen, Strahinja %A Jorgovanović, Nikola %A Bijelić, Goran %A Kostić, Milos %T Electrotactile Stimulation, A New Feedback Channel for First Responders %D 2021 * Springer %X This paper presents the early results of research aiming to develop a novel system for unobtrusive and intuitive electrotactile feedback for first responders. The system leverages the multi-pad stimulation technology based on spatiotemporal modulation of the stimuli. Two-point discrimination threshold mapping was performed in potential electrode placement locations, defined from the usability perspective by the first responders in initial co-development sessions. Based on these results a custom electrode design was proposed and validated in six healthy volunteers. Psychometric testing was conducted to determine spatial discrimination between stimuli produced by the multi-pad electrode. The average success rate of 80% indicates that the proposed approach is feasible. %@ 2367-3370 %K Electrotactile stimulation %K Mission-critical communications %K H2020 %K Biofeedback %K First responders doi 10.1007/978-3-030-80285-1_56 %U http://hdl.handle.net/11556/1209 %~ GOEDOC, SUB GOETTINGEN