BRAIN Initiative: New Concepts and Early-Stage Research for Recording and Modulation in the Nervous System (R21) (Clinical Trial Not Allowed) | RFA EY 21 001

Opportunity Information: Apply for RFA EY 21 001

The BRAIN Initiative: New Concepts and Early-Stage Research for Recording and Modulation in the Nervous System (R21) opportunity is a National Institutes of Health (NIH) discretionary grant that supports very early, high-risk ideas aimed at transforming how scientists record and influence activity in the nervous system. The overarching scientific driver is a core BRAIN Initiative challenge: understanding how electrical and chemical signaling in neural circuits encodes information and produces perception, cognition, emotion, and behavior. The program is motivated by a clear gap in current tools. Non-invasive approaches often lack spatial or temporal precision and can rely on indirect readouts (such as blood flow) that do not faithfully reflect the underlying neural signals, while invasive approaches can capture fundamental biophysical activity at the level of single neurons but typically only from tens to hundreds of neurons, far short of what would be needed to understand large-scale circuit dynamics in brains with billions of neurons.

This funding announcement is specifically positioned earlier in the technology pipeline than related BRAIN opportunities that focus on developing novel technologies further along (or optimizing technologies that are already close to in vivo proof-of-concept). In contrast, this R21 is designed for concepts that may still be untested, preliminary, or even at the initial conceptual stage. The intent is to give investigators room to explore bold directions before they are ready for animal testing or extensive preliminary datasets, with the expectation that successful projects would later mature into stronger, more validated platforms suitable for future in vivo development.

Projects supported under this FOA can include experimental and non-experimental work as long as the emphasis is on enabling new capabilities for large-scale recording and/or modulation of neural circuit activity. That can mean theoretical and computational efforts such as calculations, simulations, and mathematical or computational modeling to show that a proposed signal source, sensor, readout method, or modulation mechanism is physically and biologically plausible and could meet the demanding requirements of recording or manipulating circuit activity in humans or animal models. It can also include practical early validation work that stays short of animal studies, such as building and evaluating prototypes, constructing and testing phantoms, or conducting in vitro and benchtop demonstrations intended to check fundamental assumptions and de-risk the concept. The opportunity is explicitly not intended for clinical trials, consistent with its focus on foundational technology concept development rather than testing interventions in people.

From an applicant eligibility standpoint, NIH makes this opportunity broadly accessible across sectors. Eligible applicants include a wide range of government entities (state, county, city/township, special districts), educational organizations (independent school districts and public/state-controlled and private institutions of higher education), nonprofit organizations (with or without 501(c)(3) status), for-profit organizations (other than small businesses), small businesses, public housing authorities/Indian housing authorities, and tribal governments or organizations (including federally recognized tribes and other tribal organizations). The FOA also highlights additional eligible groups such as Alaska Native and Native Hawaiian Serving Institutions, Asian American Native American Pacific Islander Serving Institutions (AANAPISI), Hispanic-serving Institutions, Historically Black Colleges and Universities (HBCUs), Tribally Controlled Colleges and Universities (TCCUs), faith-based or community-based organizations, eligible federal agencies, regional organizations, U.S. territories or possessions, and even non-U.S. (foreign) organizations.

Administratively, the opportunity is listed as Funding Opportunity Number RFA EY 21 001, offered by the National Institutes of Health, using the R21 grant mechanism. It is categorized under broad federal activity areas spanning education, health, income security, and social services, and is associated with multiple CFDA numbers (93.173, 93.213, 93.242, 93.273, 93.279, 93.286, 93.853, 93.865, 93.866, 93.867), reflecting participation across NIH components aligned with neuroscience and related domains. The source data notes an original closing date of 2023-09-21 and a creation date of 2021-01-15, and it does not specify an award ceiling or expected number of awards in the provided excerpt.

In practical terms, applicants should view this FOA as a place to propose a genuinely new direction for neural recording or modulation that could eventually scale far beyond current limits, and to use the R21 period to establish feasibility through rigorous theory, modeling, and early prototype or benchtop validation. The most competitive submissions will usually make a strong case that the idea, while early, is grounded in plausible physics/engineering/biology, addresses a real bottleneck in large-scale neural interfacing, and sets up a credible path toward later-stage in vivo testing under future BRAIN-oriented funding opportunities.

• The National Institutes of Health in the education, health, income security and social services sector is offering a public funding opportunity titled "BRAIN Initiative: New Concepts and Early-Stage Research for Recording and Modulation in the Nervous System (R21) (Clinical Trial Not Allowed)" and is now available to receive applicants.
• Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.173, 93.213, 93.242, 93.273, 93.279, 93.286, 93.853, 93.865, 93.866, 93.867.
• This funding opportunity was created on 2021-01-15.
• Applicants must submit their applications by 2023-09-21. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
• Eligible applicants include: State governments, County governments, City or township governments, Special district governments, Independent school districts, Public and State controlled institutions of higher education, Native American tribal governments (Federally recognized), Public housing authorities/Indian housing authorities, Native American tribal organizations (other than Federally recognized tribal governments), Nonprofits having a 501 (c) (3) status with the IRS, other than institutions of higher education, Nonprofits that do not have a 501 (c) (3) status with the IRS, other than institutions of higher education, Private institutions of higher education, For-profit organizations other than small businesses, Small businesses, Others.

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