To investigate the neurobiological basis of essential brain functions such as perception, emotions, cognition, learning, and behavior, FMI scientists study the development and function of neuronal circuits using cutting-edge molecular and imaging technology and computational approaches. Integrating different levels of analysis, from local circuits to brain-wide networks, will lead to fundamental mechanistic insights into the neuronal basis of physiological and pathological brain states. These insights have enormous potential for diagnosing and treating psychiatric, neurodevelopmental and neurodegenerative conditions.