A central metric underpinning the ranking is the D-index (Discipline H-index), which is a refined variation of the traditional H-index. Unlike the general H-index, the D-index specifically measures a researcher’s scholarly impact within a focused discipline by including only papers and citations relevant to that field—in this case, Neuroscience—thereby providing a more accurate reflection of expertise and influence within the domain.
Scope and Inclusion Criteria
The ranking process began with the examination of 279,971 scientist profiles identified from various high-quality bibliometric databases across all disciplines. Within this broad scope, a carefully curated subset of 10,000 profiles associated specifically with Neuroscience was analyzed to identify leading experts in Turkey.
To qualify for inclusion in the Neuroscience ranking, a scientist was required to meet two primary criteria:
- Possess a D-index of at least 30, ensuring a substantive and sustained impact within the Neuroscience discipline.
- Have a majority of their tier publications predominantly classified within the Neuroscience domain, confirming a focused research portfolio.
In addition to bibliometric data, distinguished awards and significant achievements in Neuroscience were considered to strengthen the validity of the rankings.
The D-index threshold is dynamically set in increments of 10, calibrated to the total estimated number of scholars in each discipline. This approach guarantees that the top 1% of leading researchers are consistently incorporated into the ranking, while also maintaining a proximity threshold of 30% or less between a scientist’s overall H-index and their D-index. This ensures a balanced recognition of both general scholarly output and discipline-specific impact.
Verification and Validation Practices
Recognizing the inherent limitations of raw data as an absolute evaluative tool, the Research.com team undertook rigorous manual verification procedures. Each scientist profile was meticulously reviewed and cross-correlated against publication records in a diverse range of trustworthy and authoritative sources to minimize errors and misattributions.
While the number of publications in prominent journals and conference proceedings does not directly influence a researcher’s D-index or their position in the ranking, it serves as a useful secondary indicator of scholarly contribution within Neuroscience, reflecting both research productivity and visibility.
Ultimately, the ranking was established using the D-index calculated from comprehensive data gathered from OpenAlex and CrossRef, which remain the most prominent and widely trusted bibliometric repositories accessible to the global research community.
For a detailed overview of the methodologies employed in compiling this ranking, readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
Through the creation of this ranking, Research.com aims to inspire researchers, academic institutions, companies, and policymakers worldwide to observe and understand the direction in which leading experts are advancing science. We provide the scientific community with an authoritative and transparent resource to identify the foremost scholars in specialized fields such as Neuroscience, whether on a national scale, within institutions, or across the globe.
Our commitment to meticulous data collection, multi-source verification, and the use of refined bibliometric indicators reflects our dedication to building credibility and supporting informed decisions in scientific leadership and collaboration.
