The National Institutes of Health (NIH) is offering a funding opportunity through the R21 exploratory/developmental research grant program, aimed at advancing the understanding of neural circuitry related to mental health disorders via invasive neural recording studies. This initiative seeks to fill gaps in scientific knowledge by encouraging applications that explore complex moods, emotions, and behaviors, while emphasizing that the development of new therapies is outside the scope of this funding. Eligible applicants include a diverse range of organizations, such as historically Black colleges and universities, tribal governments, and faith-based organizations, with a maximum funding amount of $275,000 available for a two-year project period. Interested parties should submit their applications by January 7, 2025, and can direct inquiries to NIH Grants Information at grantsinfo@nih.gov or visit the additional information link at https://grants.nih.gov/grants/guide/pa-files/PAR-23-101.html for further details.