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Sarah Laxhmi Chellappa

Sarah Laxhmi Chellappa

University of Southampton
United Kingdom

D-Index & Metrics

Neuroscience

D-Index
38
Citations
5927
World Ranking
8551
National Ranking
634

Sarah Laxhmi Chellappa publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Sarah Laxhmi Chellappa sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 127 publications — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

Sarah Laxhmi Chellappa D-index placement in Neuroscience in 2026

The chart shows the D-index (discipline H-index) distribution of Neuroscience scientists ranked by Research.com in 2026. The highlighted bar marks where Sarah Laxhmi Chellappa sits on this spectrum.

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 38 D-Index — 12th percentile

12% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Overview

Sarah Laxhmi Chellappa is affiliated with the University of Southampton in the United Kingdom and has contributed extensively to research in the fields of neuroscience, psychology, and medicine. Their work primarily focuses on sleep and circadian rhythms, addressing aspects related to sleep disorders, circadian misalignment, and the physiological and psychological effects of light sensitivity and eating behaviors on metabolic health.

The main fields of study associated with their research include:

  • Neuroscience
  • Psychology
  • Medicine

Within these fields, more specific subfields of study are prominent in Chellappa's work:

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Endocrine and Autonomic Systems
  • Physiology
  • Psychiatry and Mental Health

The scientist's research covers several key topics, including:

  • Sleep and Related Disorders
  • Circadian Rhythm and Melatonin
  • Sleep and Wakefulness Research
  • Dietary Effects on Health
  • Sleep and Work-Related Fatigue
  • Autism Spectrum Disorder Research
  • Attention Deficit Hyperactivity Disorder

Chellappa has published frequently in various scientific journals, with notable venues including:

  • Sleep Health
  • SLEEP
  • Sleep Medicine Reviews
  • Proceedings of the National Academy of Sciences
  • Journal of Sleep Research

Some of the recent papers by Sarah Laxhmi Chellappa are:

  • Sleep and anxiety: From mechanisms to interventions, 2021, Sleep Medicine Reviews
  • Individual differences in light sensitivity affect sleep and circadian rhythms, 2020, SLEEP
  • Late isocaloric eating increases hunger, decreases energy expenditure, and modifies metabolic pathways in adults with overweight and obesity, 2022, Cell Metabolism
  • Daytime eating prevents internal circadian misalignment and glucose intolerance in night work, 2021, Science Advances
  • Circadian misalignment increases mood vulnerability in simulated shift work, 2020, Scientific Reports

The scientist has collaborated with several frequent co-authors, including:

  • Christian Cajochen
  • Frank A. J. L. Scheer
  • Nina Vujović
  • Jingyi Qian
  • Mirjam Münch

Best Publications

  • Non-visual effects of light on melatonin, alertness and cognitive performance: can blue-enriched light keep us alert?

    Sarah Laxhmi Chellappa;Roland Steiner;Peter Blattner;Peter Oelhafen

  • Sleep and anxiety: From mechanisms to interventions.

    Unknown

  • Acute exposure to evening blue-enriched light impacts on human sleep.

    Sarah Laxhmi Chellappa;Roland Steiner;Peter Oelhafen;Dieter Lang

  • Impact of Circadian Disruption on Cardiovascular Function and Disease

    Sarah L. Chellappa;Sarah L. Chellappa;Nina Vujovic;Nina Vujovic;Jonathan S. Williams;Frank A.J.L. Scheer;Frank A.J.L. Scheer

  • Circadian regulation of human cortical excitability

    Julien Q M Ly;Giulia Gaggioni;Sarah L. Chellappa;Soterios Papachilleos

  • Local modulation of human brain responses by circadian rhythmicity and sleep debt

    Vincenzo Muto;Mathieu Jaspar;Christelle Meyer;Caroline Kussé

  • Effects of Artificial Dawn and Morning Blue Light on Daytime Cognitive Performance, Well-being, Cortisol and Melatonin Levels

    Virginie Gabel;Micheline Maire;Carolin F. Reichert;Sarah Laxhmi Chellappa

  • Can light make us bright? Effects of light on cognition and sleep

    Sarah Laxhmi Chellappa;Sarah Laxhmi Chellappa;Marijke C. M. Gordijn;Christian Cajochen

  • Seasonality in human cognitive brain responses

    Christelle Meyer;Vincenzo Muto;Mathieu Jaspar;Caroline Kussé

  • Late isocaloric eating increases hunger, decreases energy expenditure, and modifies metabolic pathways in adults with overweight and obesity.

    Unknown

  • Individual differences in light sensitivity affect sleep and circadian rhythms.

    Sarah L Chellappa;Sarah L Chellappa

  • Sleep disorders and suicidal ideation in patients with depressive disorder

    Sarah Laxhmi Chellappa;John Fontenele Araújo

  • Human Melatonin and Alerting Response to Blue-Enriched Light Depend on a Polymorphism in the Clock Gene PER3

    Sarah Laxhmi Chellappa;Antoine U. Viola;Christina Schmidt;Valerie Bachmann

  • Excessive daytime sleepiness in patients with depressive disorder

    Sarah Laxhmi Chellappa;John Fontenele Araújo

  • Sex differences in light sensitivity impact on brightness perception, vigilant attention and sleep in humans

    Sarah L. Chellappa;Roland Steiner;Peter Oelhafen;Christian Cajochen

  • Daily circadian misalignment impairs human cognitive performance task-dependently

    Sarah L. Chellappa;Sarah L. Chellappa;Christopher J. Morris;Christopher J. Morris;Frank A. J. L. Scheer;Frank A. J. L. Scheer

  • Photic memory for executive brain responses

    Sarah Laxhmi Chellappa;Julien Q. M. Ly;Christelle Meyer;Evelyne Balteau

  • HUMAN SLEEP AND COGNITION, PT II: CLINICAL AND APPLIED RESEARCH

    Sarah Laxhmi Chellappa;Marijke Gordijn;Christian Cajochen

  • Light Modulation of Human Clocks, Wake, and Sleep.

    Abhishek S Prayag;Mirjam Münch;Daniel Aeschbach;Sarah L Chellappa

  • Effects of circadian misalignment on cognition in chronic shift workers.

    Sarah L. Chellappa;Sarah L. Chellappa;Christopher J. Morris;Christopher J. Morris;Frank A. J. L. Scheer;Frank A. J. L. Scheer

  • Cortical activation patterns herald successful dream recall after NREM and REM sleep

    Sarah Laxhmi Chellappa;Sylvia Frey;Vera Knoblauch;Christian Cajochen

  • What keeps us awake? The role of clocks and hourglasses, light, and melatonin.

    Christian Cajochen;Sarah Laxhmi Chellappa;Christina Schmidt

  • Chronobiology, excessive daytime sleepiness and depression: Is there a link?

    Sarah Laxhmi Chellappa;Carmen Schröder;Christian Cajochen

Frequent Co-Authors

Gilles Vandewalle
Gilles Vandewalle University of Liège
Christophe Phillips
Christophe Phillips University of Liège
Christian Cajochen
Christian Cajochen University of Basel
Pierre Maquet
Pierre Maquet University of Liège
Simon Archer
Simon Archer University of Surrey
Derk-Jan Dijk
Derk-Jan Dijk University of Surrey
Frank A.J.L. Scheer
Frank A.J.L. Scheer Brigham and Women's Hospital
Mario Rosanova
Mario Rosanova University of Milan
André Luxen
André Luxen University of Liège
Fabienne Collette
Fabienne Collette University of Liège

External Links

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Related Online Degrees & Career Pathways

For students interested in neuroscience, a range of online degrees and career options can complement or enhance your studies. Many choose to pursue online certificate programs that pay well, which can lead to immediate job opportunities in healthcare, research, or specialized therapy.

If cost and flexibility are top priorities, consider some of the cheapest easiest online degree options that may provide foundational knowledge useful in neuroscience-related fields. Students exploring mental health or social work careers may benefit from msw programs online, often a crucial step for advancing in clinical or counseling roles.

For those interested in behavioral health and analysis, pursuing bcba online masters programs can open pathways to becoming a Board Certified Behavior Analyst—a field closely aligned with neuroscience. Exploring these related online degrees and certifications can broaden both your career options and your understanding of the human brain and behavior.

Best Scientists Citing Sarah Laxhmi Chellappa

Steven W. Lockley

Steven W. Lockley

University of Surrey

Publications: 44

Gilles Vandewalle

Gilles Vandewalle

University of Liège

Publications: 31

Christian Cajochen

Christian Cajochen

University of Basel

Publications: 30

Frank A.J.L. Scheer

Frank A.J.L. Scheer

Brigham and Women's Hospital

Publications: 23

Derk-Jan Dijk

Derk-Jan Dijk

University of Surrey

Publications: 19

Charles A. Czeisler

Charles A. Czeisler

Brigham and Women's Hospital

Publications: 19

Luigi De Gennaro

Luigi De Gennaro

Sapienza University of Rome

Publications: 17

Mirjam Münch

Mirjam Münch

University of Basel

Publications: 15

Giulio Tononi

Giulio Tononi

University of Wisconsin–Madison

Publications: 12

Simon Archer

Simon Archer

University of Surrey

Publications: 12

Christophe Phillips

Christophe Phillips

University of Liège

Publications: 12

Marie Dumont

Marie Dumont

University of Montreal

Publications: 10

William D.S. Killgore

William D.S. Killgore

University of Arizona

Publications: 10

Michele Ferrara

Michele Ferrara

University of L'Aquila

Publications: 9

Ståle Pallesen

Ståle Pallesen

University of Bergen

Publications: 9

Julie Carrier

Julie Carrier

University of Montreal

Publications: 9

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