The brain is composed of highly structured neural circuits arranged both in parallel and hierarchical, and both electrical and chemical signals play critical roles in information processing within and across the circuits. Our group is working toward understanding the physiological, molecular biological and anatomical aspects of the brain function including cognition, learning, motor, and more complex behaviors such as social behavior. Our aim is to provide basic research findings and to innovate neuroscience methods for developing techniques that assist information processing and for advancing artificial intelligence technologies.