| Discipline name | D-Index | World Ranking | National Ranking | Publications | Citations |
|---|---|---|---|---|---|
| Psychology | 105 | 486 | 311 | 445 | 45594 |
| Medicine | 107 | 6201 | 3305 | 453 | 46352 |
The chart shows the history of publications by Roland R. Griffiths between 1969 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Roland R. Griffiths published across 57 years, from 1969 to 2025, averaging 8.7 papers a year. Output peaked at 22 publications in 2022. 16 of the 496 publications appeared in the last two years.
496 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1969 | 1 |
| 1970 | 0 |
| 1971 | 1 |
| 1972 | 0 |
| 1973 | 4 |
| 1974 | 5 |
| 1975 | 6 |
| 1976 | 7 |
| 1977 | 5 |
| 1978 | 6 |
| 1979 | 5 |
| 1980 | 10 |
| 1981 | 14 |
| 1982 | 13 |
| 1983 | 13 |
| 1984 | 15 |
| 1985 | 10 |
| 1986 | 11 |
| 1987 | 15 |
| 1988 | 10 |
| 1989 | 16 |
| 1990 | 13 |
| 1991 | 13 |
| 1992 | 9 |
| 1993 | 17 |
| 1994 | 10 |
| 1995 | 11 |
| 1996 | 12 |
| 1997 | 8 |
| 1998 | 7 |
| 1999 | 11 |
| 2000 | 4 |
| 2001 | 10 |
| 2002 | 1 |
| 2003 | 9 |
| 2004 | 2 |
| 2005 | 11 |
| 2006 | 8 |
| 2007 | 4 |
| 2008 | 4 |
| 2009 | 6 |
| 2010 | 7 |
| 2011 | 8 |
| 2012 | 6 |
| 2013 | 12 |
| 2014 | 6 |
| 2015 | 14 |
| 2016 | 8 |
| 2017 | 13 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 10 |
| 2021 | 13 |
| 2022 | 22 |
| 2023 | 12 |
| 2024 | 13 |
| 2025 | 3 |
| Total | 496 |
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 Roland R. Griffiths sits on this spectrum.
This scientist: 445 publications — 96th percentile
96% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 705 publications or more.
| 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 | |
| 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 | 445 |
| 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 |
The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where Roland R. Griffiths sits on this spectrum.
This scientist: 105 D-Index — 96th percentile
96% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 144 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30–31 | 398 | |
| 32–33 | 702 | |
| 34–35 | 671 | |
| 36–37 | 659 | |
| 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 | 105 |
| 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 |
Roland R. Griffiths was affiliated with Johns Hopkins University School of Medicine in the United States. Their research primarily focused on the intersection of psychology, neuroscience, and chemistry, with an emphasis on clinical psychology within these broader fields.
Their main fields of study included:
Within these fields, their subfields of study were:
Griffiths' research topics covered areas such as:
The scientist frequently published in several venues, including:
Some of the recent papers authored or co-authored by Griffiths covered significant topics related to psilocybin-assisted therapy and its psychological effects. Notable publications include:
Throughout their career, Griffiths frequently collaborated with other researchers. Their co-authors included:
In 1980, Roland R. Griffiths was recognized as a Fellow of the American Psychological Association (APA).
Roland R Griffiths;Matthew W Johnson;Michael A Carducci;Annie Umbricht
R. R. Griffiths;W. A. Richards;U. McCann;R. Jesse
Chad J. Reissig;Eric C. Strain;Roland R. Griffiths
Matthew W. Johnson;William A. Richards;Roland R. Griffiths
Alan K. Davis;Alan K. Davis;Frederick S. Barrett;Darrick G. May;Mary P. Cosimano
Roland R. Griffiths;William A. Richards;Matthew W. Johnson;Una D. McCann
Matthew W Johnson;Albert Garcia-Romeu;Mary P Cosimano;Roland R Griffiths
Roland R. Griffiths;Matthew W. Johnson;William A. Richards;Brian D. Richards
Katherine A MacLean;Matthew W Johnson;Roland R Griffiths
Laura M. Juliano;Roland R. Griffiths
Matthew W. Johnson;Albert Garcia-Romeu;Roland R. Griffiths
Frederick S Barrett;Matthew W Johnson;Roland R Griffiths
Theresa M Carbonaro;Matthew P Bradstreet;Frederick S Barrett;Katherine A MacLean
Kenneth Silverman;Suzette M. Evans;Suzette M. Evans;Eric C. Strain;Roland R. Griffiths
Albert Garcia-Romeu;Roland R. Griffiths;Matthew W. Johnson
Matthew W. Johnson;Peter S. Hendricks;Frederick S. Barrett;Roland R. Griffiths
Roland R Griffiths;Matthew W Johnson;William A Richards;Brian D Richards
David B. Yaden;Roland R. Griffiths
Unknown
Daniel R. McLeod;Roland R. Griffiths;George E. Bigelow;John Yingling
Roland R. Griffiths;Phillip P. Woodson
Frederick S. Barrett;Matthew W. Johnson;Roland R. Griffiths
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