Taegeun Song, Heetae Kim, Seung-Woo Son, Junghyo Jo Physical Review E 101, 022613 (2020) https://doi.org/10.1103/PhysRevE.101.022613 Abstract Multiple organs in a living system respond to environmental changes, and the signals from the organs regulate the physiological environment. Inspired by this biological feedback, we propose a simple autonomous system of active rotators to explain how multiple units are synchronized under a fluctuating environment. We find that the feedb