Karl Friston: h-index, Total Citations, and Citation Map
Karl Friston's h-index is 297 (1295 i10-index, 409,659+ total citations across 196+ publications) according to Google Scholar as of June 2026. Karl Friston is affiliated with University College London.
Karl Friston is a researcher affiliated with University College London, specializing in Neuroscience. Their work has been cited 409,659 times. This profile visualizes their global influence, highlighting strong citation networks in United States.
Karl Friston's Citation Metrics
Bibliometric impact based on 196 indexed publications. Of these, 19 are original research articles — the rest are literature highlights, conference abstracts or theses.
- H-Index
- 297
- i10-Index
- 1295
- Total Citations
- 409,659
- Citing Countries
- 56
As of June 2026.
Karl Friston has an h-index of 297 and 409,659 total citations across 196 publications, with research cited by institutions in 56 countries.
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We've mapped 5,000 of 409,659 citations for Karl Friston
We've shown the most-cited 5,000. Unlock the full crawl (408,004 more citations) to see every institution citing this scholar.
Global Impact Map
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The free-energy principle: a unified brain theory?
201013,243
Top Citing Countries
Top Citing Institutions
Visa Evidence Package
Views and exports tuned for EB-1A, O-1A, and EB-2 NIW petitions. Sustained acclaim, geographic reach, and independent-citation filtering are the strongest evidence categories immigration adjudicators look for.
Significant Contributions
Auto-detected research lines — a seminal paper and the follow-up work building on it. Review and edit before using in a petition. Each Free PDF opens in a new tab — EB-1A organises this into the structure USCIS applies to Criterion 5 of 8 CFR § 204.5(h)(3)(v); EB-1B re-frames it under § 204.5(i)(3) (outstanding researcher); NIW presents it under prong 2 of Matter of Dhanasar.
324 citing papers could not be classified (no author data) — excluded from the percentages above.
The researcher established a general linear framework for statistical parametric mapping in functional brain imaging, creating a foundational methodology widely adopted for analyzing functional brain images.
The researcher established foundational methodologies for voxel-based morphometry and unified segmentation, creating standard analytical frameworks that have been widely adopted across the neuroimaging community.
The researcher established a foundational voxel-based morphometric framework for quantifying age-related brain changes in large normal adult cohorts, creating a widely adopted standard for neuroimaging studies.
Citation trend (last 10 years)Click to expand
Citation Trend (Last 10 Years)
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About Karl Friston's research
Karl Friston is a researcher in Neuroscience at University College London. Their work has been cited 409,659 times across 196 publications (h-index 297), according to Google Scholar.
Their most-cited work, “The free-energy principle: a unified brain theory?” (2010), has accumulated 13,243 citations. Other influential works include “Statistical parametric maps in functional imaging: a general linear approach” (1994) with 11,996 citations and “Voxel-based morphometry—the methods” (2000) with 11,347 citations.
Citations of Karl Friston's research come primarily from United States, China and United Kingdom, reflecting international research impact across 5+ countries. The interactive citation map above shows the full geographic distribution of the institutions citing this work.
