Data Sources and Metric Basis
The 5th edition of the Research.com Best Neuroscience Scientists in Iran, Islamic Republic Of Ranking has been developed utilizing comprehensive bibliometric data primarily sourced from OpenAlex and CrossRef, complemented by multiple other reputable data repositories. The citation-based metrics integral to the ranking's design were collected on January 12, 2026. Central to positioning researchers in this ranking is the D-index (Discipline H-index), a refined metric that specifically includes only papers and citation data relevant to the discipline under examination, ensuring a focused evaluation of a scientist’s impact within Neuroscience.
Scope of Research and Qualification Criteria
Our ranking scope was built upon an extensive examination of 279,971 scientist profiles identified from diverse bibliometric sources across all scientific disciplines, among which 3,000 profiles are specifically from the field of Neuroscience. To qualify for inclusion in this Neuroscience-focused ranking, a scientist’s D-index must be at least 30, and the majority of their tier publications must be primarily situated within the domain of Neuroscience. Additionally, awards and achievements pertinent to Neuroscience were factored into the consideration.
The D-index threshold is calibrated as increments of 10, based on the estimated total number of scholars in each discipline, while rigorously ensuring that the ranking incorporates the top 1% of leading scientists. Moreover, to maintain disciplinary alignment, only those scientists whose general H-index and their Neuroscience-specific D-index differ by 30% or less are included, reflecting a close proximity between overall research impact and discipline-specific expertise.
Verification Practices and Ranking Methodology
The team behind this ranking is acutely aware that raw bibliometric data alone is never sufficient as an absolute tool for evaluating scholarly output. Hence, all scientist profiles included in the ranking have undergone meticulous manual verification and cross-correlation against publications from a wide array of trustworthy and authoritative academic sources.
While not directly influencing the ranking position, the volume of publications in prominent journals and elite conference proceedings is considered a valuable secondary indicator of a scientist’s contribution to their field.
The researcher’s final ranking position is determined by their D-index, which is derived from the integrated data obtained from OpenAlex and CrossRef—two of the most prominent and widely respected bibliometric databases available to the academic community. For a detailed overview of the ranking methodology, we encourage readers to visit our methodology page.
Research.com’s Mission and Purpose
At Research.com, our mission is to inspire researchers, institutions, corporations, and policymakers worldwide to explore the trajectories and achievements of leading scientific experts. By providing a clear and rigorously validated ranking of top scholars in specific disciplines, countries, and research institutions, we aim to facilitate greater awareness and connectivity across the global scientific community. This initiative supports better-informed decision-making, collaboration, and recognition of excellence within the field of Neuroscience and beyond.
