World's Best Scientists 2026 revealed!
Leonard L. Howell

Leonard L. Howell

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 36 9617 8997 5074 4629 156 4420

Leonard L. Howell publications per year

The chart shows the history of publications by Leonard L. Howell between 1981 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Leonard L. Howell published across 45 years, from 1981 to 2025, averaging 4.3 papers a year. Output peaked at 17 publications in 2012. 2 of the 193 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1981 to 2025. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 2012. 1981: 1 publication 1982: 1 publication 1983: 1 publication 1984: 1 publication 1985: 0 publications 1986: 2 publications 1987: 2 publications 1988: 2 publications 1989: 1 publication 1990: 1 publication 1991: 2 publications 1992: 1 publication 1993: 3 publications 1994: 1 publication 1995: 3 publications 1996: 0 publications 1997: 4 publications 1998: 1 publication 1999: 0 publications 2000: 4 publications 2001: 4 publications 2002: 5 publications 2003: 1 publication 2004: 3 publications 2005: 4 publications 2006: 6 publications 2007: 6 publications 2008: 11 publications 2009: 14 publications 2010: 13 publications 2011: 8 publications 2012: 17 publications 2013: 8 publications 2014: 6 publications 2015: 7 publications 2016: 6 publications 2017: 15 publications 2018: 11 publications 2019: 5 publications 2020: 5 publications 2021: 2 publications 2022: 1 publication 2023: 2 publications 2024: 1 publication 2025: 1 publication
1981 2025

193 publications in total across all disciplines

View publications per year as a table
Leonard L. Howell: publications per year, 1981 to 2025
Year Publications
1981 1
1982 1
1983 1
1984 1
1985 0
1986 2
1987 2
1988 2
1989 1
1990 1
1991 2
1992 1
1993 3
1994 1
1995 3
1996 0
1997 4
1998 1
1999 0
2000 4
2001 4
2002 5
2003 1
2004 3
2005 4
2006 6
2007 6
2008 11
2009 14
2010 13
2011 8
2012 17
2013 8
2014 6
2015 7
2016 6
2017 15
2018 11
2019 5
2020 5
2021 2
2022 1
2023 2
2024 1
2025 1
Total 193
Download as CSV

Leonard L. Howell publication distribution in Psychology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Psychology in 2026. The highlighted bar marks where Leonard L. Howell sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 69 bars. Horizontal axis: publications, 31–40 to 705+. Vertical axis: number of scientists, 0 to 736. Most scientists, 736, have 101–110 publications. The last bar groups every scientist with 705 publications or more. The highlighted bar, 151–160 publications, is where this scientist sits. 31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31–40 publications 705+

This scientist: 156 publications — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

View publications distribution as a table
Number of Psychology scientists by publication count, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
Publications Scientists This scientist
31–40 6
41–50 52
51–60 138
61–70 299
71–80 461
81–90 605
91–100 713
101–110 736
111–120 686
121–130 670
131–140 644
141–150 597
151–160 576 156
161–170 477
171–180 450
181–190 397
191–200 343
201–210 328
211–220 313
221–230 283
231–240 226
241–250 196
251–260 201
261–270 171
271–280 151
281–290 139
291–300 113
301–310 102
311–320 100
321–330 76
331–340 92
341–350 85
351–360 69
361–370 71
371–380 63
381–390 58
391–400 57
401–410 43
411–420 33
421–430 50
431–440 41
441–450 32
451–460 27
461–470 28
471–480 25
481–490 28
491–500 20
501–510 23
511–520 26
521–530 17
531–540 21
541–550 14
551–560 16
561–570 10
571–580 22
581–590 9
591–600 14
601–610 9
611–620 11
621–630 4
631–640 7
641–650 5
651–660 10
661–670 8
671–680 8
681–690 4
691–700 3
701–704 4
705+ 100
Download as CSV

Leonard L. Howell D-index placement in Psychology in 2026

The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where Leonard L. Howell sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 58 bars. Horizontal axis: D-Index, 30–31 to 144+. Vertical axis: number of scientists, 0 to 702. Most scientists, 702, have 32–33 D-Index. The last bar groups every scientist with 144 D-Index or more. The highlighted bar, 36–37 D-Index, is where this scientist sits. 30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30–31 D-Index 144+

This scientist: 36 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

View D-Index distribution as a table
Number of Psychology scientists by D-index, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
D-Index Scientists This scientist
30–31 398
32–33 702
34–35 671
36–37 659 36
38–39 641
40–41 671
42–43 617
44–45 558
46–47 495
48–49 487
50–51 445
52–53 390
54–55 408
56–57 345
58–59 325
60–61 321
62–63 248
64–65 290
66–67 218
68–69 219
70–71 215
72–73 183
74–75 169
76–77 132
78–79 137
80–81 120
82–83 112
84–85 86
86–87 101
88–89 83
90–91 77
92–93 70
94–95 78
96–97 58
98–99 53
100–101 57
102–103 48
104–105 53
106–107 46
108–109 24
110–111 35
112–113 27
114–115 32
116–117 31
118–119 22
120–121 16
122–123 24
124–125 18
126–127 11
128–129 19
130–131 10
132–133 16
134–135 10
136–137 12
138–139 8
140–141 5
142–143 12
144+ 98
Download as CSV

Overview

Leonard L. Howell is affiliated with Emory University in the United States and specializes primarily in the field of Medicine. Their research contributions span several subfields, including Epidemiology, Infectious Diseases, Public Health, Environmental and Occupational Health, General Health Professions, and Clinical Biochemistry.

Their recent scholarly work encompasses a range of topics centered on infectious diseases, antimicrobial resistance, and clinical management. The main topics covered in their publications include:

  • Infective Endocarditis Diagnosis and Management
  • Antimicrobial Resistance in Staphylococcus
  • Bacterial Identification and Susceptibility Testing
  • Streptococcal Infections and Treatments
  • Musculoskeletal Pain and Rehabilitation
  • Health Policy Implementation Science
  • Interprofessional Education and Collaboration

Several recent papers reflect Leonard L. Howell's research interests, such as:

  • Management of Staphylococcus aureus Bacteremia (2025), published in JAMA
  • Sharing SRP data to reduce environmentally associated disease and promote transdisciplinary research (2020), published in Reviews on Environmental Health
  • Use of Implementation Strategies to Promote the Uptake of Knee Osteoarthritis Practice Guidelines and Improve Patient Outcomes: A Systematic Review (2024), published in Arthritis Care & Research
  • Oral Versus Intravenous Antibiotic Therapy for Staphylococcus aureus Bacteremia or Endocarditis: A Systematic Review and Meta-Analysis of Randomized, Controlled Trials (2024), published in Clinical Infectious Diseases
  • Surgical Treatment of Severe Heterotopic Ossification After Total Hip Arthroplasty Over the Last 25 Years: A Systematic Review of the Literature and a New Case Series (2024), published in The Journal of Arthroplasty

Their frequent publication venues include:

  • Clinical Infectious Diseases
  • Reviews on Environmental Health
  • JAMA
  • Arthritis Care & Research
  • The Journal of Arthroplasty

Leonard L. Howell often collaborates with a consistent group of coauthors who have contributed to multiple publications, including:

  • Thomas L Holland
  • Tsai-Wei Wang
  • Abigail Rader
  • Karen D. Barton
  • Helen W. Boucher

Best Publications

  • Monoamine transporters and psychostimulant addiction.

    Leonard L. Howell;Heather L. Kimmel

  • Chronic Interferon- α Decreases Dopamine 2 Receptor Binding and Striatal Dopamine Release in Association with Anhedonia-Like Behavior in Nonhuman Primates

    Jennifer C Felger;Jiyoung Mun;Heather L Kimmel;Heather L Kimmel;Jonathon A Nye

  • Serotonergic modulation of the behavioral effects of cocaine in the squirrel monkey.

    L L Howell;L D Byrd

  • The Dopamine Transporter and Cocaine Medication Development: Drug Self-Administration in Nonhuman Primates

    Leonard L. Howell;Kristin M. Wilcox

  • 3,4-Methylenedioxymethamphetamine facilitates fear extinction learning

    M B Young;R Andero;Kerry Ressler;Kerry Ressler;Leonard Howell

  • Characterization of the effects of cocaine and GBR 12909, a dopamine uptake inhibitor, on behavior in the squirrel monkey.

    L L Howell;L D Byrd

  • Serotonergic Attenuation of the Reinforcing and Neurochemical Effects of Cocaine in Squirrel Monkeys

    Paul W. Czoty;Brett C. Ginsburg;Leonard L. Howell

  • Dopamine transporter-related effects of modafinil in rhesus monkeys

    Monica L. Andersen;Monica L. Andersen;Eileen Kessler;Kevin S. Murnane;Jessica C. McClung

  • EFFECTS OF COMBINED DOPAMINE AND SEROTONIN TRANSPORTER INHIBITORS ON COCAINE SELF-ADMINISTRATION IN RHESUS MONKEYS

    Leonard L. Howell;F. Ivy Carroll;John R. Votaw;Mark M. Goodman

  • Behavioral and physiological effects of xanthines in nonhuman primates.

    L. L. Howell;Vicki L. Coffin;Roger D. Spealman

  • Effects of Serotonin 2C Receptor Agonists on the Behavioral and Neurochemical Effects of Cocaine in Squirrel Monkeys

    Daniel F. Manvich;Heather L. Kimmel;Leonard L. Howell

  • Inhibition of serotonin transporters disrupts the enhancement of fear memory extinction by 3,4-methylenedioxymethamphetamine (MDMA).

    Matthew B. Young;Seth D. Norrholm;Seth D. Norrholm;Lara M. Khoury;Tanja Jovanovic;Tanja Jovanovic

  • Cocaine-induced brain activation determined by positron emission tomography neuroimaging in conscious rhesus monkeys.

    Leonard L. Howell;John M. Hoffman;John R. Votaw;Alyson M. Landrum

  • Cocaine-induced changes in extracellular dopamine determined by microdialysis in awake squirrel monkeys.

    PW Czoty;Jr Jb Justice;LL Howell

  • Faster onset and dopamine transporter selectivity predict stimulant and reinforcing effects of cocaine analogs in squirrel monkeys

    Heather L. Kimmel;Joann A. O'Connor;F. Ivy Carroll;Leonard L. Howell

  • Interactions between the mGluR2/3 agonist, LY379268, and cocaine on in vivo neurochemistry and behavior in squirrel monkeys

    Rayna M. Bauzo;Heather L. Kimmel;Heather L. Kimmel;Leonard L. Howell;Leonard L. Howell

  • Effects of dopamine transporter inhibitors on cocaine self-administration in rhesus monkeys: relationship to transporter occupancy determined by positron emission tomography neuroimaging.

    Kimberly P. Lindsey;Kristin M. Wilcox;John R. Votaw;Mark M. Goodman

  • Ketamine and pharmacological imaging: use of functional magnetic resonance imaging to evaluate mechanisms of action.

    Eric A. Maltbie;Gopinath S. Kaundinya;Leonard L. Howell

  • An apparatus and behavioral training protocol to conduct positron emission tomography (PET) neuroimaging in conscious rhesus monkeys

    L.L. Howell;J.M. Hoffman;J.R. Votaw;A.M. Landrum

  • Comparative behavioral pharmacology of cocaine and the selective dopamine uptake inhibitor RTI-113 in the squirrel monkey.

    Howell Ll;Czoty Pw;Kuhar Mj;Carrol Fi

Frequent Co-Authors

Kenner C. Rice
Kenner C. Rice National Institutes of Health
F. Ivy Carroll
F. Ivy Carroll Research Triangle Park Foundation
Xiaodong Zhang
Xiaodong Zhang The Ohio State University
Yoland Smith
Yoland Smith Emory University
Jocelyne Bachevalier
Jocelyne Bachevalier Emory University
Sergio Tufik
Sergio Tufik Federal University of Sao Paulo
Michael J. Kuhar
Michael J. Kuhar Emory University
Thomas Wichmann
Thomas Wichmann Emory University
John M. Hoffman
John M. Hoffman University of Utah
Scott E. Hemby
Scott E. Hemby High Point University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring psychology in the USA opens up a wide variety of career paths through online degree programs. Aspiring professionals can specialize by pursuing the affordable masters in child and adolescent psychology online, preparing for roles in education, counseling, and child welfare.

For those interested in workplace behavior and leadership, a cheap online master's in organizational psychology offers training for careers in human resources, organizational consulting, and talent management.

If your interests are in applied behavior analysis and autism intervention, there are affordable online bcba programs tailored to prepare you for BCBA certification. Graduates often work in schools, clinics, or private practice.

For broader clinical practice, choosing one of the cheapest masters in clinical psychology online can help you become a licensed clinical psychologist or mental health counselor.

Each of these online programs provides flexibility and cost savings, making advanced psychology education more accessible while supporting a range of rewarding career pathways.

Best Scientists Citing Leonard L. Howell

Trending Scientists

Recently Published Articles