Professor Susumu Takahashi, currently at Graduate School of Brain Science, Doshisha University has made significant contributions to understanding the mnemonic functions of the hippocampus, particularly in episodic memory encoding and retrieval. With a solid foundation in Electrical Engineering (B.Eng.) and Computer Science (Ph.D.) from Keio University, where he developed innovative spike sorting software using independent component analysis, his postdoctoral work at Kyoto University further honed his expertise in hippocampal functions. Takahashi's career includes impactful tenures as an Assistant Professor at Kyoto Sangyo University and as an Associate Professor at Doshisha University, where he integrated state-of-the-art information processing and statistical methods with neurophysiological techniques, notably multi-unit recording and operant conditioning in rodents. His research, characterized by a blend of computational insights and electrophysiological techniques, extends to exploring cognitive and behavioral functions in mammals, leveraging advanced tools like NeuroLogger for recording neuronal activity in freely behaving animals. This approach has notably been applied to studying the neural underpinnings of long-distance migratory behaviors in species such as seabirds, salmonid fish, and sea turtles.