International Brain Laboratory

The International Brain Laboratory (IBL) is a large-scale, international collaboration of neuroscience laboratories that aims to understand decision making at the neuronal level. In 2025, the IBL published its milestone results, detailing the first-ever complete brain-wide activity map of decision-making. The collaboration brings together over 80 scientists in 19 labs across the US and Europe to understand a single behavior in the mouse brain by pooling data and using standardized methods. It is funded by the Simons Foundation and Wellcome Trust and was inspired by the success of other large-scale collaborations in science, such as CERN.