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J. Christopher Perry

J. Christopher Perry

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 41 7870 7342 527 495 124 7436

J. Christopher Perry publications per year

The chart shows the history of publications by J. Christopher Perry between 1982 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. J. Christopher Perry published across 45 years, from 1982 to 2026, averaging 3.1 papers a year. Output peaked at 10 publications in 2004. 5 of the 139 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1982 to 2026. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 2004. 1982: 2 publications 1983: 1 publication 1984: 1 publication 1985: 1 publication 1986: 3 publications 1987: 1 publication 1988: 1 publication 1989: 7 publications 1990: 2 publications 1991: 1 publication 1992: 5 publications 1993: 4 publications 1994: 1 publication 1995: 2 publications 1996: 0 publications 1997: 2 publications 1998: 1 publication 1999: 4 publications 2000: 0 publications 2001: 1 publication 2002: 1 publication 2003: 5 publications 2004: 10 publications 2005: 4 publications 2006: 2 publications 2007: 1 publication 2008: 3 publications 2009: 7 publications 2010: 0 publications 2011: 2 publications 2012: 5 publications 2013: 9 publications 2014: 6 publications 2015: 3 publications 2016: 4 publications 2017: 7 publications 2018: 2 publications 2019: 4 publications 2020: 5 publications 2021: 4 publications 2022: 4 publications 2023: 3 publications 2024: 3 publications 2025: 4 publications 2026: 1 publication
1982 2026

139 publications in total across all disciplines

View publications per year as a table
J. Christopher Perry: publications per year, 1982 to 2026
Year Publications
1982 2
1983 1
1984 1
1985 1
1986 3
1987 1
1988 1
1989 7
1990 2
1991 1
1992 5
1993 4
1994 1
1995 2
1996 0
1997 2
1998 1
1999 4
2000 0
2001 1
2002 1
2003 5
2004 10
2005 4
2006 2
2007 1
2008 3
2009 7
2010 0
2011 2
2012 5
2013 9
2014 6
2015 3
2016 4
2017 7
2018 2
2019 4
2020 5
2021 4
2022 4
2023 3
2024 3
2025 4
2026 1
Total 139
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J. Christopher Perry 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 J. Christopher Perry 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, 121–130 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: 124 publications — 35th percentile

35% 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
121–130 670 124
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
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
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J. Christopher Perry 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 J. Christopher Perry 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, 40–41 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: 41 D-Index — 33rd percentile

33% 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
38–39 641
40–41 671 41
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
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Overview

J. Christopher Perry is affiliated with McGill University in Canada and conducts research primarily in the field of Psychology. Their work spans several subfields including Clinical Psychology, Experimental and Cognitive Psychology, Social Psychology, Sociology and Political Science, and Applied Psychology.

The scientist's research covers a variety of topics, with a notable focus on Personality Disorders and Psychopathology, Child and Adolescent Psychosocial and Emotional Development, COVID-19 and Mental Health, Mental Health Research Topics, Resilience and Mental Health, Migration, Health and Trauma, and Psychotherapy Techniques and Applications.

Their recent publications demonstrate involvement in assessing psychological functioning and the impact of mental health issues, particularly related to defense mechanisms and the effects of the COVID-19 pandemic. Some of the recent papers include:

  • "The Hierarchy of Defense Mechanisms: Assessing Defensive Functioning With the Defense Mechanisms Rating Scales Q-Sort" (2021, Frontiers in Psychology)
  • "Psychological Impact of Coronavirus Disease 2019 Among Italians During the First Week of Lockdown" (2020, Frontiers in Psychiatry)
  • "Preliminary Reliability and Validity of the DMRS-SR-30, a Novel Self-Report Measure Based on the Defense Mechanisms Rating Scales" (2020, Frontiers in Psychiatry)
  • "Defense Mechanisms, Gender, and Adaptiveness in Emerging Personality Disorders in Adolescent Outpatients" (2020, The Journal of Nervous and Mental Disease)
  • "Psychometric Properties of the Defense Mechanisms Rating Scales-Self-Report-30 (DMRS-SR-30): Internal Consistency, Validity and Factor Structure" (2022, Journal of Personality Assessment)

J. Christopher Perry frequently publishes in venues such as Frontiers in Psychology, Frontiers in Psychiatry, The Journal of Nervous and Mental Disease, arXiv (Cornell University), and the Journal of Personality Assessment.

They collaborate regularly with several coauthors who contribute to related research areas. Frequent collaborators include Mariagrazia Di Giuseppe, Ciro Conversano, Vera Békés, Claire J. Starrs, and Tracy A. Prout.

Best Publications

  • Childhood trauma in borderline personality disorder

    Unknown

  • Long-Term Changes in Defense Styles With Psychodynamic Psychotherapy for Depressive, Anxiety, and Personality Disorders

    Michael Bond;J. Christopher Perry

  • Effectiveness of Psychotherapy for Personality Disorders

    Unknown

  • Remission in Major Depressive Disorder: A Comparison of Pharmacotherapy, Psychotherapy, and Control Conditions

    Nicola Casacalenda;J. Christopher Perry;Karl Looper

  • Dr. Herman and Associates Reply

    Judith L. Herman;J. Christopher Perry;Bessel A. Van Der Kolk

  • Problems and considerations in the valid assessment of personality disorders

    Unknown

  • A preliminary report on defenses and conflicts associated with borderline personality disorder.

    J. Christopher Perry;Steven H. Cooper

  • Change in Defense Mechanisms During Long-Term Dynamic Psychotherapy and Five-Year Outcome

    J. Christopher Perry;Michael Bond

  • An Empirical Study of Defense Mechanisms

    Unknown

  • Instruments for the assessment of childhood trauma in adults.

    Carmella A. Roy;J. Christopher Perry

  • Psychotherapy and Psychological Trauma in Borderline Personality Disorder

    J Christopher Perry;Judith L Herman;Bessel A Van Der Kolk;Lizbeth A Hoke

  • Unwanted infants: psychological and physical consequences of inadequate orphanage care 50 years later.

    John J. Sigal;J. Christopher Perry;Michel Rossignol;Marie Claude Ouimet

  • Defensive functioning predicts improvement in major depressive episodes.

    P Høglend;J C Perry

  • Defense mechanisms in schizotypal, borderline, antisocial, and narcissistic personality disorders.

    J. Christopher Perry;Michelle D. Presniak;Trevor R. Olson

  • Childhood trauma and adult interpersonal functioning: a study using the Core Conflictual Relationship Theme Method (CCRT)

    Martin Drapeau;J. Christopher Perry

  • Sequential consequences of therapists' interventions.

    Constance Milbrath;Michael Bond;Steven Cooper;Hans J. Znoj

  • A study of stability and change in defense mechanisms during a brief psychodynamic investigation

    Martin Drapeau;Yves De Roten;J Christopher Perry;Jean-Nicolas Despland

  • A Pilot Study of Defenses in Adults with Personality Disorders Entering Psychotherapy

    Unknown

  • Chapter 9 – Studying Defense Mechanisms in Psychotherapy using the Defense Mechanism Rating Scales

    J. Christopher Perry;Melissa Henry

  • The Hierarchy of Defense Mechanisms: Assessing Defensive Functioning With the Defense Mechanisms Rating Scales Q-Sort.

    Mariagrazia Di Giuseppe;J. Christopher Perry

  • A prospective study of life stress, defenses, psychotic symptoms, and depression in borderline and antisocial personality disorders and bipolar type II affective disorder

    J. Christopher Perry

  • Psychological Impact of Coronavirus Disease 2019 Among Italians During the First Week of Lockdown

    Mariagrazia Di Giuseppe;Sigal Zilcha-Mano;Tracy A. Prout;John Christopher Perry

  • Narcissistic and Borderline Personality Disorders in a Sample of Treatment Refractory Patients

    A Jill Clemence;J Christopher Perry;Eric M Plakun

  • Maternal Preoccupation and Parenting as Predictors of Emotional and Behavioral Problems in Children of Women With Breast Cancer

    John J. Sigal;J. Christopher Perry;James M. Robbins;Marie-Anik Gagné

  • Preliminary Reliability and Validity of the DMRS-SR-30, a Novel Self-Report Measure Based on the Defense Mechanisms Rating Scales.

    Mariagrazia Di Giuseppe;John Christopher Perry;Matilde Lucchesi;Monica Michelini

Frequent Co-Authors

Michael Bond
Michael Bond Hong Kong Polytechnic University
Vittorio Lingiardi
Vittorio Lingiardi Sapienza University of Rome
Bessel A. van der Kolk
Bessel A. van der Kolk Boston University
Per Høglend
Per Høglend University of Oslo
Philip W. Lavori
Philip W. Lavori Stanford University
Mardi J. Horowitz
Mardi J. Horowitz University of California, San Francisco
Hugo J. Duivenvoorden
Hugo J. Duivenvoorden Erasmus University Rotterdam

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