Definition · Plain-language
NIH study section
An NIH study section is a panel of external scientific experts that conducts the first level of peer review, judging the scientific and technical merit of grant applications.
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What a study section does
A study section, formally a Scientific Review Group, is the first of NIH’s two levels of review. Reviewers with relevant expertise read assigned applications, score them against criteria such as significance, innovation, approach and investigator qualifications, and discuss the most competitive applications in a meeting. Each application receives an impact score and a written summary statement (the "pink sheets"), which the applicant can read in eRA Commons. The awarding institute’s advisory council then provides the second level of review.
The Center for Scientific Review
Most NIH study sections are organised and staffed by the Center for Scientific Review (CSR), which receives applications and assigns them to the appropriate standing or special-emphasis panel. Each standing study section has a defined scientific scope and is led by a Scientific Review Officer (SRO), an NIH staff member who manages the process, recruits reviewers and ensures fairness and confidentiality. Some institutes run their own review for specific mechanisms.
Conflicts and integrity
Study sections operate under strict conflict-of-interest and confidentiality rules: reviewers must recuse themselves from applications involving their own institution, collaborators or competing interests, and leave the room during those discussions. These safeguards protect the integrity of the merit-review system. Applicants can request, within limits, that their application be assigned to a particular study section whose expertise best matches the work.
Key facts
At a glance
- Definition: panel of peer reviewers scoring NIH applications
- Formal name: Scientific Review Group (SRG)
- Convened by: Center for Scientific Review (CSR)
- Led by: a Scientific Review Officer (SRO)
- Output: impact scores and summary statements
- Level: first of NIH’s two review levels
Common misconceptions
What people often get wrong
Often heard: The study section decides which grants get funded.
Actually: Study sections assess scientific merit and assign scores; the awarding institute, after a second-level advisory-council review, makes the actual funding decision within its budget.
Often heard: Reviewers can review applications from their own institution.
Actually: Strict conflict-of-interest rules require reviewers to recuse themselves and leave the discussion for any application involving their institution, collaborators or competing interests.
Often heard: Applicants have no say in which section reviews them.
Actually: Applicants may request assignment to a particular study section; the Center for Scientific Review makes the final assignment based on scientific fit.
Going deeper
