World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Neuroscience 70 2478 2264 1175 1055 288 22700
Medicine 72 19786 18557 9849 9077 292 23211

Mark A. Sager publications per year

The chart shows the history of publications by Mark A. Sager between 1985 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Mark A. Sager published across 41 years, from 1985 to 2025, averaging 7.5 papers a year. Output peaked at 35 publications in 2014. 16 of the 306 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1985 to 2025. Vertical axis: number of publications, 0 to 35. Peak 35 publications in 2014. 1985: 1 publication 1986: 0 publications 1987: 1 publication 1988: 1 publication 1989: 1 publication 1990: 1 publication 1991: 1 publication 1992: 1 publication 1993: 0 publications 1994: 3 publications 1995: 1 publication 1996: 3 publications 1997: 1 publication 1998: 3 publications 1999: 1 publication 2000: 2 publications 2001: 2 publications 2002: 0 publications 2003: 1 publication 2004: 3 publications 2005: 5 publications 2006: 14 publications 2007: 6 publications 2008: 18 publications 2009: 6 publications 2010: 18 publications 2011: 10 publications 2012: 14 publications 2013: 19 publications 2014: 35 publications 2015: 34 publications 2016: 21 publications 2017: 18 publications 2018: 14 publications 2019: 9 publications 2020: 4 publications 2021: 5 publications 2022: 6 publications 2023: 7 publications 2024: 7 publications 2025: 9 publications
1985 2025

306 publications in total across all disciplines

View publications per year as a table
Mark A. Sager: publications per year, 1985 to 2025
Year Publications
1985 1
1986 0
1987 1
1988 1
1989 1
1990 1
1991 1
1992 1
1993 0
1994 3
1995 1
1996 3
1997 1
1998 3
1999 1
2000 2
2001 2
2002 0
2003 1
2004 3
2005 5
2006 14
2007 6
2008 18
2009 6
2010 18
2011 10
2012 14
2013 19
2014 35
2015 34
2016 21
2017 18
2018 14
2019 9
2020 4
2021 5
2022 6
2023 7
2024 7
2025 9
Total 306
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Mark A. Sager publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Mark A. Sager sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 86 bars. Horizontal axis: publications, 38–47 to 887+. Vertical axis: number of scientists, 0 to 539. Most scientists, 539, have 98–107 publications. The last bar groups every scientist with 887 publications or more. The highlighted bar, 288–297 publications, is where this scientist sits. 38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientist 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38–47 publications 887+

This scientist: 288 publications — 81st percentile

81% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

View publications distribution as a table
Number of Neuroscience scientists by publication count, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
Publications Scientists This scientist
38–47 18
48–57 79
58–67 193
68–77 323
78–87 406
88–97 452
98–107 539
108–117 505
118–127 522
128–137 469
138–147 456
148–157 459
158–167 397
168–177 383
178–187 350
188–197 302
198–207 306
208–217 262
218–227 242
228–237 220
238–247 203
248–257 174
258–267 176
268–277 175
278–287 125
288–297 116 288
298–307 127
308–317 128
318–327 99
328–337 89
338–347 78
348–357 96
358–367 66
368–377 59
378–387 65
388–397 54
398–407 48
408–417 49
418–427 34
428–437 31
438–447 30
448–457 31
458–467 36
468–477 40
478–487 35
488–497 30
498–507 23
508–517 26
518–527 20
528–537 23
538–547 20
548–557 20
558–567 17
568–577 14
578–587 20
588–597 20
598–607 19
608–617 18
618–627 17
628–637 11
638–647 11
648–657 11
658–667 8
668–677 7
678–687 11
688–697 10
698–707 4
708–717 6
718–727 5
728–737 5
738–747 9
748–757 9
758–767 3
768–777 7
778–787 7
788–797 6
798–807 2
808–817 2
818–827 7
828–837 0
838–847 9
848–857 3
858–867 1
868–877 3
878–886 6
887+ 100
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Mark A. Sager D-index placement in Neuroscience in 2026

The chart shows the D-index (discipline H-index) distribution of Neuroscience scientists ranked by Research.com in 2026. The highlighted bar marks where Mark A. Sager sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 68 bars. Horizontal axis: D-Index, 30–31 to 163+. Vertical axis: number of scientists, 0 to 512. Most scientists, 512, have 46–47 D-Index. The last bar groups every scientist with 163 D-Index or more. The highlighted bar, 70–71 D-Index, is where this scientist sits. 30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30–31 D-Index 163+

This scientist: 70 D-Index — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

View D-Index distribution as a table
Number of Neuroscience scientists by D-index, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
D-Index Scientists This scientist
30–31 42
32–33 172
34–35 296
36–37 435
38–39 459
40–41 456
42–43 467
44–45 478
46–47 512
48–49 435
50–51 425
52–53 418
54–55 392
56–57 357
58–59 334
60–61 328
62–63 260
64–65 278
66–67 239
68–69 250
70–71 210 70
72–73 200
74–75 189
76–77 170
78–79 146
80–81 113
82–83 126
84–85 100
86–87 84
88–89 99
90–91 84
92–93 85
94–95 72
96–97 76
98–99 45
100–101 49
102–103 43
104–105 32
106–107 45
108–109 50
110–111 32
112–113 39
114–115 32
116–117 29
118–119 27
120–121 19
122–123 23
124–125 27
126–127 16
128–129 24
130–131 13
132–133 21
134–135 17
136–137 14
138–139 15
140–141 10
142–143 10
144–145 13
146–147 9
148–149 8
150–151 6
152–153 6
154–155 7
156–157 7
158–159 10
160–161 4
162 8
163+ 100
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Overview

Mark A. Sager is affiliated with the University of Wisconsin-Madison in the United States. Their research primarily focuses on medicine, with notable contributions across various subfields including physiology, radiology, nuclear medicine and imaging, psychiatry and mental health, cognitive neuroscience, and neurology.

Their work addresses multiple topics such as Alzheimer's disease research and treatments, dementia and cognitive impairment research, advanced neuroimaging techniques and applications, functional brain connectivity studies, genetic syndromes and imprinting, frailty in older adults, and advanced MRI techniques and applications.

Recent publications authored by Mark A. Sager include:

  • Association of Elevated Amyloid and Tau Positron Emission Tomography Signal With Near-Term Development of Alzheimer Disease Symptoms in Older Adults Without Cognitive Impairment, 2022, JAMA Neurology
  • Impact of sex and APOE ε4 on age-related cerebral perfusion trajectories in cognitively asymptomatic middle-aged and older adults: A longitudinal study, 2021, Journal of Cerebral Blood Flow & Metabolism
  • Age-related differences in white matter microstructure measured by advanced diffusion MRI in healthy older adults at risk for Alzheimer's disease, 2022, Aging Brain
  • Age-Related Tau Burden and Cognitive Deficits Are Attenuated in KLOTHO KL-VS Heterozygotes, 2021, Journal of Alzheimer s Disease
  • Spatial Extent of Amyloid-β Levels and Associations With Tau-PET and Cognition, 2022, JAMA Neurology

Frequent co-authors in their research activity include:

  • Ozioma C. Okonkwo
  • Sterling C. Johnson
  • Sanjay Asthana
  • Catherine L. Gallagher
  • Bruce P. Hermann

Their publications are often featured in the following venues:

  • Alzheimer s & Dementia
  • Journal of Alzheimer s Disease
  • JAMA Neurology
  • Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring
  • Brain Communications

Best Publications

  • Genetic meta-analysis of diagnosed Alzheimer’s disease identifies new risk loci and implicates Aβ, tau, immunity and lipid processing

    Unknown

  • Practice guideline update summary: Mild cognitive impairment: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology

    Ronald C. Petersen;Oscar Lopez;Melissa J. Armstrong;Thomas S.D. Getchius

  • Multi-ancestry genome-wide meta-analysis of 56,241 individuals identifies LRRC4C, LHX5-AS1 and nominates ancestry-specific loci PTPRK, GRB14, and KIAA0825 as novel risk loci for Alzheimer disease: the Alzheimer Disease Genetics Consortium

    Unknown

  • Rare coding variants in PLCG2, ABI3, and TREM2 implicate microglial-mediated innate immunity in Alzheimer's disease

    Rebecca Sims;Sven J. Van Der Lee;Adam C. Naj;Céline Bellenguez;Céline Bellenguez

  • Functional Outcomes of Acute Medical Illness and Hospitalization in Older Persons

    M A Sager;T Franke;S K Inouye;C S Landefeld

  • Hospital admission risk profile (HARP): identifying older patients at risk for functional decline following acute medical illness and hospitalization.

    M. A. Sager;M. A. Rudberg;Muhammad Jalaluddin;T. Franke

  • Exceptionally low likelihood of Alzheimer’s dementia in APOE2 homozygotes from a 5,000-person neuropathological study

    Eric M Reiman;Joseph F Arboleda-Velasquez;Yakeel T Quiroz;Matthew J Huentelman

  • Association of Insulin Resistance With Cerebral Glucose Uptake in Late Middle–Aged Adults at Risk for Alzheimer Disease

    Auriel A. Willette;Barbara B. Bendlin;Erika J. Starks;Alex C. Birdsill

  • The effect of body mass index on global brain volume in middle-aged adults: a cross sectional study

    Michael A Ward;Cynthia M Carlsson;Mehul A Trivedi;Mark A Sager

  • The Wisconsin Registry for Alzheimer's Prevention: A review of findings and current directions.

    Sterling C. Johnson;Rebecca L. Koscik;Erin M. Jonaitis;Lindsay R. Clark

  • A novel Alzheimer disease locus located near the gene encoding tau protein

    G. Jun;C. A. Ibrahim-Verbaas;M. Vronskaya;J-C Lambert;J-C Lambert;J-C Lambert

  • Middle-Aged Children of Persons With Alzheimer’s Disease: APOE Genotypes and Cognitive Function in the Wisconsin Registry for Alzheimer’s Prevention

    Mark A. Sager;Bruce Hermann;Asenath La Rue

  • Early identification and treatment of Alzheimer's disease: Social and fiscal outcomes

    David L. Weimer;Mark A. Sager

  • Insulin resistance predicts brain amyloid deposition in late middle-aged adults.

    Auriel A. Willette;Auriel A. Willette;Sterling C. Johnson;Alex C. Birdsill;Mark A. Sager

  • Risk of falls after hospital discharge.

    Jane Mahoney;Mark Sager;Nancy Cross Dunham;Jill Johnson

  • Measurement of Activities of Daily Living in Hospitalized Elderly: A Comparison of Self‐Report and Performance‐Based Methods

    Mark A. Sager;Nancy Cross Dunham;Amy Schwantes;Laurie Mecum

  • Physical activity attenuates age-related biomarker alterations in preclinical AD

    Ozioma C. Okonkwo;Stephanie A. Schultz;Jennifer M. Oh;Jordan Larson

  • Amyloid burden is associated with self-reported sleep in nondemented late middle-aged adults

    Kate E. Sprecher;Barbara B. Bendlin;Annie M. Racine;Ozioma C. Okonkwo

  • Novel Alzheimer Disease Risk Loci and Pathways in African American Individuals Using the African Genome Resources Panel: A Meta-analysis

    Brian W. Kunkle;Michael Schmidt;Hans Ulrich Klein;Adam C. Naj

  • Association of Amyloid Pathology With Myelin Alteration in Preclinical Alzheimer Disease

    Douglas C. Dean;Samuel A. Hurley;Steven R. Kecskemeti;J. Patrick O’Grady

  • Poor sleep is associated with CSF biomarkers of amyloid pathology in cognitively normal adults.

    Kate E. Sprecher;Rebecca L. Koscik;Cynthia M. Carlsson;Henrik Zetterberg

  • Amyloid burden and neural function in people at risk for Alzheimer's Disease

    Sterling C. Johnson;Bradley T. Christian;Ozioma C. Okonkwo;Jennifer M. Oh

  • Insulin Resistance, Brain Atrophy, and Cognitive Performance in Late Middle–Aged Adults

    Auriel A. Willette;Guofan Xu;Sterling C. Johnson;Alex C. Birdsill

  • Reduced hippocampal activation during episodic encoding in middle-aged individuals at genetic risk of Alzheimer's disease: a cross-sectional study.

    Mehul A Trivedi;Mehul A Trivedi;Taylor W Schmitz;Taylor W Schmitz;Michele L Ries;Michele L Ries;Britta M Torgerson;Britta M Torgerson

  • Magnetic resonance imaging characterization of brain structure and function in mild cognitive impairment: a review.

    Michele L. Ries;Cynthia M. Carlsson;Howard A. Rowley;Mark A. Sager

  • Transethnic genome-wide scan identifies novel Alzheimer's disease loci

    Gyungah R. Jun;Gyungah R. Jun;Jaeyoon Chung;Jesse Mez;Robert Barber

  • Temporal Association Between Hospitalization and Rate of Falls After Discharge

    Jane E. Mahoney;Mari Palta;Jill Johnson;Muhammad Jalaluddin

Frequent Co-Authors

Sterling C. Johnson
Sterling C. Johnson University of Wisconsin–Madison
Sanjay Asthana
Sanjay Asthana University of Wisconsin–Madison
Bruce P. Hermann
Bruce P. Hermann University of Wisconsin–Madison
Rebecca L. Koscik
Rebecca L. Koscik University of Wisconsin–Madison
Ozioma C. Okonkwo
Ozioma C. Okonkwo University of Wisconsin–Madison
Henrik Zetterberg
Henrik Zetterberg University of Gothenburg
Kaj Blennow
Kaj Blennow University of Gothenburg
Andrew L. Alexander
Andrew L. Alexander University of Wisconsin–Madison
Bradley T. Christian
Bradley T. Christian University of Wisconsin–Madison
Taylor W. Schmitz
Taylor W. Schmitz University of Western Ontario

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