The National Institutes of Health (NIH) is offering a federal grant opportunity titled "BRAIN Initiative: Brain-Behavior Quantification and Synchronization – Transformative Research on Behavior at the Organismal Level." This initiative aims to support transdisciplinary research that develops tools for high-resolution, multimodal tracking of complex behaviors in conjunction with neural activity, focusing on understanding neurobehavioral functions in dynamic environments. The program is crucial for advancing neurotechnologies and theoretical frameworks that can model behavior as a complex dynamic system influenced by environmental factors. The estimated total funding for this program is $8 million, with approximately 10 awards expected. Interested applicants can reach out to the BRAIN Initiative at BRAINBBQS@od.nih.gov for more information, with proposals due by October 13, 2026, and project start dates anticipated for July 1, 2027.