The National Institutes of Health (NIH) is offering a funding opportunity for research projects focused on the basic neurodevelopmental biology of circuits and behavior, specifically through the R21 grant mechanism. This initiative aims to investigate the dynamic links between the maturation of brain circuits and behaviors in rodents and non-human primates, with an emphasis on understanding how these changes influence cognitive, emotional, and social behaviors. The funding, capped at $275,000 over a two-year period, is open to a diverse range of eligible applicants, including various educational institutions and community organizations. Interested parties should submit their applications by January 7, 2025, and can find additional information and guidelines at the provided NIH link or by contacting the NIH OER Webmaster at OERWebmaster03@od.nih.gov.