The Department of Cell Physiology, Graduate School of Medicine at Akita University hosted the international symposium "Molecular Physiology of Neuronal Signaling, Circuits, and Behavior" at the 40th Anniversary Hall on the Hondo Campus. Supported by the JSPS Core-to-Core Program A Advanced Research Networks, we welcomed 60+ participants from Japan, Germany, Denmark, France, Austria, the United States, and Canada. The symposium facilitated in-depth, interdisciplinary discussions on the latest advancements in synaptic neuroscience at the molecular, cellular, and circuit levels, all in a friendly and collaborative atmosphere. (In Japanese)