World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
58
Citations
12571
World Ranking
3877
National Ranking
206

Nicole A. Kochan 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 Nicole A. Kochan sits on this spectrum.

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 publications 705+

This scientist: 255 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

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

Nicole A. Kochan 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 Nicole A. Kochan sits on this spectrum.

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 D-Index 144+

This scientist: 58 D-Index — 67th percentile

67% of scientists in this discipline score the same or lower.

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

Overview

Nicole A. Kochan is a researcher affiliated with the University of New South Wales in Australia. Their academic work primarily focuses on topics related to medicine, with a significant emphasis on psychiatry and mental health, cognitive neuroscience, physiology, public health, environmental and occupational health, as well as experimental and cognitive psychology.

Their research contributions have been concentrated in areas such as dementia and cognitive impairment research, functional brain connectivity studies, frailty in older adults, health disparities and outcomes, health, environment and cognitive aging, nutritional studies and diet, and advanced neuroimaging techniques and applications.

Nicole A. Kochan has published extensively in multiple scientific venues, with frequent contributions to the following journals:

  • Alzheimer's & Dementia
  • bioRxiv (Cold Spring Harbor Laboratory)
  • International Psychogeriatrics
  • NeuroImage
  • The Journals of Gerontology Series B

Notable papers authored or co-authored by Nicole A. Kochan include:

  • "A comparison of machine learning methods for survival analysis of high-dimensional clinical data for dementia prediction," 2020, Scientific Reports
  • "Metformin Use Is Associated With Slowed Cognitive Decline and Reduced Incident Dementia in Older Adults With Type 2 Diabetes: The Sydney Memory and Ageing Study," 2020, Diabetes Care
  • "Estimating prevalence of subjective cognitive decline in and across international cohort studies of aging: a COSMIC study," 2020, Alzheimer's Research & Therapy
  • "Hippocampal plasticity underpins long-term cognitive gains from resistance exercise in MCI," 2020, NeuroImage Clinical
  • "Association of Dilated Perivascular Spaces With Cognitive Decline and Incident Dementia," 2021, Neurology

The researcher frequently collaborates with others including Perminder S. Sachdev, Henry Brodaty, Katya Numbers, John D. Crawford, and Wei Wen, reflecting active partnerships in the field.

Best Publications

  • Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function

    Gail Davies;Max Lam;Sarah E. Harris;Joey W. Trampush

  • Genetic contributions to variation in general cognitive function: a meta-analysis of genome-wide association studies in the CHARGE consortium (N=53 949)

    G. Davies;N. Armstrong;J. C. Bis;J. Bressler

  • The Sydney Memory and Ageing Study (MAS): methodology and baseline medical and neuropsychiatric characteristics of an elderly epidemiological non-demented cohort of Australians aged 70-90 years.

    Perminder S. Sachdev;Henry Brodaty;Simone Reppermund;Nicole A. Kochan

  • A Multifactorial Approach to Understanding Fall Risk in Older People

    Kim Delbaere;Jacqueline C.T. Close;Jacqueline C.T. Close;Jörg Heim;Perminder S. Sachdev

  • Subjective cognitive decline and rates of incident Alzheimer's disease and non–Alzheimer's disease dementia

    Rosalinde E.R. Slot;Sietske A.M. Sikkes;Johannes Berkhof;Henry Brodaty

  • Prevalence and predictors of “subjective cognitive complaints” in the Sydney Memory and Ageing Study.

    Melissa J. Slavin;Henry Brodaty;Nicole A. Kochan;John D. Crawford

  • The Prevalence of Mild Cognitive Impairment in Diverse Geographical and Ethnocultural Regions: The COSMIC Collaboration

    Perminder S. Sachdev;Darren M. Lipnicki;Nicole A. Kochan;John D. Crawford

  • Mild cognitive impairment as a predictor of falls in community-dwelling older people.

    Kim Delbaere;Nicole A. Kochan;Jacqueline C.T. Close;Jasmine C. Menant

  • Discrete Neuroanatomical Networks Are Associated with Specific Cognitive Abilities in Old Age

    Wei Wen;Wanlin Zhu;Yong He;Nicole A Kochan

  • A comparison of machine learning methods for survival analysis of high-dimensional clinical data for dementia prediction.

    Annette Spooner;Emily Chen;Arcot Sowmya;Perminder Sachdev

  • Plasma apolipoprotein levels are associated with cognitive status and decline in a community cohort of older individuals.

    Fei Song;Anne Poljak;John Crawford;Nicole A. Kochan

  • Profile of and risk factors for poststroke cognitive impairment in diverse ethnoregional groups

    Jessica W. Lo;John D. Crawford;David W. Desmond;Olivier Godefroy

  • The association between systemic inflammation and cognitive performance in the elderly: the Sydney Memory and Ageing Study

    Julian N Trollor;Evelyn Smith;Emmeline Agars;Stacey A Kuan

  • Metformin Use Is Associated With Slowed Cognitive Decline and Reduced Incident Dementia in Older Adults With Type 2 Diabetes: The Sydney Memory and Ageing Study.

    Katherine Samaras;Katherine Samaras;Katherine Samaras;Steve Makkar;John D. Crawford;Nicole A. Kochan

  • Age-related cognitive decline and associations with sex, education and apolipoprotein E genotype across ethnocultural groups and geographic regions: a collaborative cohort study

    Darren M Lipnicki;John D Crawford;Rajib Dutta;Anbupalam Thalamuthu

  • Mild cognitive impairment in a community sample: The Sydney Memory and Ageing Study

    Henry Brodaty;Megan Heffernan;Nicole A. Kochan;Brian Draper

  • Factors predicting reversion from mild cognitive impairment to normal cognitive functioning: a population-based study.

    Perminder S. Sachdev;Darren M. Lipnicki;John Crawford;Simone Reppermund

  • GWAS for executive function and processing speed suggests involvement of the CADM2 gene

    C. A. Ibrahim-Verbaas;Jan Bressler;S. Debette;M. Schuur

  • Impairment in instrumental activities of daily living with high cognitive demand is an early marker of mild cognitive impairment: the Sydney memory and ageing study

    S. Reppermund;H. Brodaty;J. D. Crawford;N. A. Kochan

  • The relationship of neuropsychological function to instrumental activities of daily living in mild cognitive impairment.

    Simone Reppermund;Perminder S. Sachdev;John Crawford;Nicole A. Kochan

  • Subjective cognitive decline and rates of incident Alzheimer's disease and non-Alzheimer's disease dementia

    Rosalinde E. R. Slot;Sietske A. M. Sikkes;Johannes Berkhof;Henry Brodaty

Frequent Co-Authors

Perminder S. Sachdev
Perminder S. Sachdev University of New South Wales
Henry Brodaty
Henry Brodaty University of New South Wales
Julian N. Trollor
Julian N. Trollor University of New South Wales
Simone Reppermund
Simone Reppermund University of New South Wales
Wei Wen
Wei Wen University of New South Wales
Melissa J. Slavin
Melissa J. Slavin University of New South Wales
Brian Draper
Brian Draper University of New South Wales
John B.J. Kwok
John B.J. Kwok University of Sydney
Kaarin J. Anstey
Kaarin J. Anstey University of New South Wales
Peter R. Schofield
Peter R. Schofield Neuroscience Research Australia

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