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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Engineering and Technology 56 2766 2643 842 766 254 15346

Robert J. Greenberg publications per year

The chart shows the history of publications by Robert J. Greenberg between 1996 and 2022, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Robert J. Greenberg published across 27 years, from 1996 to 2022, averaging 12.4 papers a year. Output peaked at 49 publications in 2007. 4 of the 336 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1996 to 2022. Vertical axis: number of publications, 0 to 49. Peak 49 publications in 2007. 1996: 1 publication 1997: 1 publication 1998: 1 publication 1999: 10 publications 2000: 2 publications 2001: 6 publications 2002: 14 publications 2003: 25 publications 2004: 10 publications 2005: 11 publications 2006: 41 publications 2007: 49 publications 2008: 29 publications 2009: 18 publications 2010: 9 publications 2011: 22 publications 2012: 21 publications 2013: 16 publications 2014: 10 publications 2015: 6 publications 2016: 13 publications 2017: 7 publications 2018: 4 publications 2019: 3 publications 2020: 3 publications 2021: 3 publications 2022: 1 publication
1996 2022

336 publications in total across all disciplines

View publications per year as a table
Robert J. Greenberg: publications per year, 1996 to 2022
Year Publications
1996 1
1997 1
1998 1
1999 10
2000 2
2001 6
2002 14
2003 25
2004 10
2005 11
2006 41
2007 49
2008 29
2009 18
2010 9
2011 22
2012 21
2013 16
2014 10
2015 6
2016 13
2017 7
2018 4
2019 3
2020 3
2021 3
2022 1
Total 336
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Robert J. Greenberg publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Robert J. Greenberg sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: publications, 38–47 to 804+. Vertical axis: number of scientists, 0 to 457. Most scientists, 457, have 148–157 publications. The last bar groups every scientist with 804 publications or more. The highlighted bar, 248–257 publications, is where this scientist sits. 38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38–47 publications 804+

This scientist: 254 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

View publications distribution as a table
Number of Engineering and Technology scientists by publication count, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
Publications Scientists This scientist
38–47 20
48–57 35
58–67 96
68–77 135
78–87 190
88–97 259
98–107 283
108–117 369
118–127 341
128–137 386
138–147 372
148–157 457
158–167 415
168–177 407
178–187 421
188–197 378
198–207 403
208–217 317
218–227 346
228–237 321
238–247 260
248–257 280 254
258–267 240
268–277 214
278–287 242
288–297 203
298–307 166
308–317 154
318–327 175
328–337 159
338–347 99
348–357 131
358–367 106
368–377 118
378–387 97
388–397 108
398–407 82
408–417 71
418–427 64
428–437 55
438–447 54
448–457 60
458–467 47
468–477 40
478–487 30
488–497 29
498–507 38
508–517 40
518–527 32
528–537 23
538–547 28
548–557 23
558–567 19
568–577 16
578–587 17
588–597 18
598–607 22
608–617 15
618–627 9
628–637 11
638–647 21
648–657 12
658–667 9
668–677 11
678–687 9
688–697 6
698–707 14
708–717 7
718–727 8
728–737 10
738–747 9
748–757 5
758–767 5
768–777 11
778–787 7
788–797 2
798–803 4
804+ 100
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Robert J. Greenberg D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Robert J. Greenberg sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 78 bars. Horizontal axis: D-Index, 30 to 107+. Vertical axis: number of scientists, 0 to 426. Most scientists, 426, have 42 D-Index. The last bar groups every scientist with 107 D-Index or more. The highlighted bar, 56 D-Index, is where this scientist sits. 30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 56 D-Index — 72nd percentile

72% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

View D-Index distribution as a table
Number of Engineering and Technology scientists by D-index, Research.com 2026 ranking edition. Based on 9,796 ranked scientists.
D-Index Scientists This scientist
30 59
31 114
32 129
33 189
34 200
35 262
36 311
37 312
38 350
39 385
40 348
41 362
42 426
43 380
44 310
45 341
46 301
47 306
48 271
49 246
50 210
51 253
52 213
53 221
54 195
55 186
56 170 56
57 167
58 166
59 144
60 152
61 141
62 138
63 131
64 118
65 114
66 119
67 95
68 87
69 77
70 89
71 69
72 54
73 46
74 55
75 54
76 49
77 53
78 46
79 28
80 39
81 36
82 24
83 26
84 36
85 18
86 25
87 19
88 26
89 27
90 23
91 15
92 12
93 9
94 15
95 10
96 13
97 13
98 9
99 7
100 7
101 8
102 7
103 7
104 9
105 6
106 9
107+ 99
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Research.com Recognitions

  • 2019 - IEEE Fellow For the invention and development of the retinal prosthesis for the blind
  • 2016 - Fellow, National Academy of Inventors
  • 2009 - Fellow of the Indian National Academy of Engineering (INAE)

Overview

Robert J. Greenberg is affiliated with Johns Hopkins University in the United States. Their research primarily intersects the fields of neuroscience and neural engineering, with a notable focus on visual prosthetics and brain stimulation technologies.

The scientist has contributed to the following research topics:

  • Neuroscience and Neural Engineering
  • EEG and Brain-Computer Interfaces
  • Advanced Memory and Neural Computing
  • Neural dynamics and brain function
  • Retinal Development and Disorders
  • Photoreceptor and optogenetics research

Main fields of study for Robert J. Greenberg include Neuroscience with nine publications, supported by subfields such as:

  • Cellular and Molecular Neuroscience
  • Cognitive Neuroscience
  • Electrical and Electronic Engineering
  • Molecular Biology

Frequent publication venues demonstrate a focus on specialized journals:

  • Brain Stimulation (3 publications)
  • European Journal of Ophthalmology (1 publication)

Recent papers authored or co-authored by Greenberg include:

  • Multi-electrode stimulation evokes consistent spatial patterns of phosphenes and improves phosphene mapping in blind subjects, 2021, Brain Stimulation
  • Eye movements and the perceived location of phosphenes generated by intracranial primary visual cortex stimulation in the blind, 2021, Brain Stimulation
  • Sequence of visual cortex stimulation affects phosphene brightness in blind subjects, 2022, Brain Stimulation
  • Electronic retinal prosthesis for severe loss of vision in geographic atrophy in age-related macular degeneration: First-in-human use, 2021, European Journal of Ophthalmology

The scientist works alongside frequent collaborators such as Jessy D. Dorn, Soroush Niketeghad, M Salas, Uday Patel, and Nader Pouratian.

Awards received by Robert J. Greenberg include:

  • IEEE Fellow (2019) for the invention and development of the retinal prosthesis for the blind
  • Fellow, National Academy of Inventors (2016)
  • Fellow of the Indian National Academy of Engineering (INAE) (2009)

Best Publications

  • Visual perception elicited by electrical stimulation of retina in blind humans.

    Mark S. Humayun;Eugene de Juan;Gislin Dagnelie;Robert J. Greenberg

  • Visual perception in a blind subject with a chronic microelectronic retinal prosthesis

    Mark S. Humayun;James D. Weiland;Gildo Y. Fujii;Robert Greenberg

  • Interim Results from the International Trial of Second Sight's Visual Prosthesis

    Mark S. Humayun;Jessy D. Dorn;Lyndon Da Cruz;Gislin Dagnelie

  • Pattern electrical stimulation of the human retina

    Mark S. Humayun;Eugene de Juan;James D. Weiland;Gislin Dagnelie

  • Retinal Prosthesis for the Blind

    Eyal Margalit;Mauricio Maia;James D Weiland;Robert J Greenberg

  • Visual prosthesis and method of using same

    Mark S. Humayun;Eugene de Juan;Robert J. Greenberg

  • A neuro-stimulus chip with telemetry unit for retinal prosthetic device

    W. Liu;K. Vichienchom;M. Clements;S.C. DeMarco

  • The Argus II epiretinal prosthesis system allows letter and word reading and long-term function in patients with profound vision loss

    Lyndon da Cruz;Brian F Coley;Jessy Dorn;Francesco Merlini

  • Five-Year Safety and Performance Results from the Argus II Retinal Prosthesis System Clinical Trial

    Lyndon da Cruz;Jessy D. Dorn;Mark S. Humayun;Gislin Dagnelie

  • Blind subjects implanted with the Argus II retinal prosthesis are able to improve performance in a spatial-motor task

    Ashish K. Ahuja;J. D. Dorn;A. Caspi;M. J. McMahon

  • Visual performance using a retinal prosthesis in three subjects with retinitis pigmentosa.

    Douglas Yanai;Douglas Yanai;James D. Weiland;Manjunatha Mahadevappa;Robert J. Greenberg

  • Biocompatible bonding method and electronics package suitable for implantation

    Robert J. Greenberg;Neil H. Talbot;Jerry Ok;Jordan M. Neysmith

  • Highly stable carbon nanotube doped poly(3,4-ethylenedioxythiophene) for chronic neural stimulation.

    Xiliang Luo;Cassandra L. Weaver;David D. Zhou;Robert Greenberg

  • Perceptual thresholds and electrode impedance in three retinal prosthesis subjects

    M. Mahadevappa;J.D. Weiland;D. Yanai;I. Fine

  • Factors affecting perceptual thresholds in epiretinal prostheses.

    Chloé de Balthasar;Sweta Patel;Arup Roy;Ricardo Freda

  • The Detection of Motion by Blind Subjects With the Epiretinal 60-Electrode (Argus II) Retinal Prosthesis

    Jessy D. Dorn;Ashish K. Ahuja;Avi Caspi;Lyndon da Cruz

  • Frequency and amplitude modulation have different effects on the percepts elicited by retinal stimulation.

    Devyani Nanduri;Ione Fine;Alan Horsager;Geoffrey M. Boynton

  • Electrode array for neural stimulation

    Robert J. Greenberg;Joseph H. Schulman

  • Improving the spatial resolution of epiretinal implants by increasing stimulus pulse duration.

    Andrew C. Weitz;Devyani Nanduri;Matthew R. Behrend;Alejandra Gonzalez-Calle

  • Feasibility Study of a Retinal Prosthesis : Spatial Vision With a 16-Electrode Implant

    Avi Caspi;Jessy D. Dorn;Kelly H. McClure;Mark S. Humayun

  • Package for an implantable medical device

    Robert J. Greenberg;Joseph H. Schulman

  • In vitro and in vivo evaluation of ultrananocrystalline diamond for coating of implantable retinal microchips

    Xingcheng Xiao;Jian Wang;Chao Liu;John A. Carlisle

  • Package for an implantable neural stimulation device

    Jerry Ok;Robert J. Greenberg;Neil Hamilton Talbot;James Singleton Little

Frequent Co-Authors

Mark S. Humayun
Mark S. Humayun University of Southern California
James D. Weiland
James D. Weiland University of Michigan–Ann Arbor
Kea-Tiong Tang
Kea-Tiong Tang National Tsing Hua University
Geoffrey M. Boynton
Geoffrey M. Boynton University of Washington
José-Alain Sahel
José-Alain Sahel University of Pittsburgh
Joseph H. Schulman
Joseph H. Schulman Alfred Mann Foundation
David G. Birch
David G. Birch The University of Texas Southwestern Medical Center
Jack W. Judy
Jack W. Judy University of Florida
Wentai Liu
Wentai Liu University of California, Los Angeles
Nader Pouratian
Nader Pouratian University of California, Los Angeles

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