Walking Together (IMAGE) Tohoku University Caption The participants' footsteps are recorded with motion sensors which are used for step synchronization analysis. Credit Chia-huei Tseng Usage Restrictions Credit: Chia-huei Tseng License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.