Leonid Kayumov

3.0k total citations
32 papers, 2.2k citations indexed

About

Leonid Kayumov is a scholar working on Experimental and Cognitive Psychology, Cognitive Neuroscience and Endocrine and Autonomic Systems. According to data from OpenAlex, Leonid Kayumov has authored 32 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Experimental and Cognitive Psychology, 17 papers in Cognitive Neuroscience and 16 papers in Endocrine and Autonomic Systems. Recurrent topics in Leonid Kayumov's work include Sleep and related disorders (21 papers), Sleep and Wakefulness Research (16 papers) and Circadian rhythm and melatonin (15 papers). Leonid Kayumov is often cited by papers focused on Sleep and related disorders (21 papers), Sleep and Wakefulness Research (16 papers) and Circadian rhythm and melatonin (15 papers). Leonid Kayumov collaborates with scholars based in Canada, United States and Netherlands. Leonid Kayumov's co-authors include Colin M. Shapiro, Alan Lowe, Seithikurippu R. Pandi‐Perumal, Colin M. Shapiro, Daniel P. Cardinali, Marcel G. Smits, Venkataramanujan Srinivasan, Warren Spence, Henry J. Moller and Shadab A. Rahman and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Anesthesiology and Journal of Affective Disorders.

In The Last Decade

Leonid Kayumov

32 papers receiving 2.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Leonid Kayumov Canada 23 1.3k 1.1k 877 365 193 32 2.2k
Ana Amélia Benedito‐Silva Brazil 24 953 0.7× 650 0.6× 724 0.8× 331 0.9× 292 1.5× 60 2.2k
Clifford M. Singer United States 20 908 0.7× 1.2k 1.1× 1.0k 1.1× 433 1.2× 361 1.9× 42 2.4k
Iris Haimov Israel 20 959 0.7× 729 0.7× 810 0.9× 267 0.7× 170 0.9× 53 1.7k
Naomi L. Rogers Australia 36 2.1k 1.7× 1.3k 1.2× 1.4k 1.6× 638 1.7× 385 2.0× 71 3.8k
Peter Graw Switzerland 23 957 0.7× 1.0k 1.0× 740 0.8× 260 0.7× 64 0.3× 39 1.9k
Fernando Mazzilli Louzada Brazil 28 1.5k 1.2× 915 0.9× 903 1.0× 317 0.9× 125 0.6× 91 2.3k
Shingo Kitamura Japan 22 959 0.7× 651 0.6× 584 0.7× 203 0.6× 102 0.5× 58 1.5k
Nayantara Santhi United Kingdom 25 1.6k 1.2× 1.8k 1.7× 1.2k 1.3× 647 1.8× 88 0.5× 46 3.0k
Leen Kim South Korea 28 719 0.6× 471 0.4× 566 0.6× 210 0.6× 527 2.7× 118 2.3k
Katherine M. Sharkey United States 30 1.5k 1.2× 1.1k 1.0× 887 1.0× 498 1.4× 120 0.6× 68 2.4k

Countries citing papers authored by Leonid Kayumov

Since Specialization
Citations

This map shows the geographic impact of Leonid Kayumov's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Leonid Kayumov with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Leonid Kayumov more than expected).

Fields of papers citing papers by Leonid Kayumov

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leonid Kayumov. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Leonid Kayumov. The network helps show where Leonid Kayumov may publish in the future.

Co-authorship network of co-authors of Leonid Kayumov

This figure shows the co-authorship network connecting the top 25 collaborators of Leonid Kayumov. A scholar is included among the top collaborators of Leonid Kayumov based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Leonid Kayumov. Leonid Kayumov is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Rahman, Shadab A., Leonid Kayumov, & Colin M. Shapiro. (2009). Antidepressant action of melatonin in the treatment of Delayed Sleep Phase Syndrome. Sleep Medicine. 11(2). 131–136. 67 indexed citations
2.
Rahman, Shadab A., Shai Marcu, Leonid Kayumov, & Colin M. Shapiro. (2009). Altered sleep architecture and higher incidence of subsyndromal depression in low endogenous melatonin secretors. European Archives of Psychiatry and Clinical Neuroscience. 260(4). 327–335. 45 indexed citations
3.
Rahman, Shadab A., et al.. (2008). Clinical efficacy of dim light melatonin onset testing in diagnosing delayed sleep phase syndrome. Sleep Medicine. 10(5). 549–555. 67 indexed citations
4.
Shen, Jianhua, Sharon A. Chung, Leonid Kayumov, et al.. (2006). Polysomnographic and Symptomatological Analyses of Major Depressive Disorder Patients Treated with Mirtazapine. The Canadian Journal of Psychiatry. 51(1). 27–34. 41 indexed citations
5.
Moller, Henry J., et al.. (2006). Psychomotor disturbance in depression: Assessment using a driving simulator paradigm. Journal of Affective Disorders. 93(1-3). 213–218. 75 indexed citations
6.
Srinivasan, Venkataramanujan, Marcel G. Smits, Warren Spence, et al.. (2006). Melatonin in mood disorders. The World Journal of Biological Psychiatry. 7(3). 138–151. 213 indexed citations
7.
Pandi‐Perumal, Seithikurippu R., Marcel G. Smits, Warren Spence, et al.. (2006). Dim light melatonin onset (DLMO): A tool for the analysis of circadian phase in human sleep and chronobiological disorders. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 31(1). 1–11. 298 indexed citations
8.
Chung, Frances, et al.. (2005). What Is the Driving Performance of Ambulatory Surgical Patients after General Anesthesia?. Anesthesiology. 103(5). 951–956. 25 indexed citations
9.
Shen, Jianhua, Sidney H. Kennedy, Robert D. Levitan, Leonid Kayumov, & Colin M. Shapiro. (2005). The effects of nefazodone on women with seasonal affective disorder: clinical and polysomnographic analyses. Journal of Psychiatry and Neuroscience. 30(1). 11–16. 16 indexed citations
10.
11.
Kayumov, Leonid, Robert F. Casper, Raed Hawa, et al.. (2005). Blocking Low-Wavelength Light Prevents Nocturnal Melatonin Suppression with No Adverse Effect on Performance during Simulated Shift Work. The Journal of Clinical Endocrinology & Metabolism. 90(5). 2755–2761. 108 indexed citations
12.
Hossain, Jami, Lawrence W. Reinish, Ronald J. Heslegrave, et al.. (2004). Subjective and Objective Evaluation of Sleep and Performance in Daytime Versus Nighttime Sleep in Extended-Hours Shift-Workers at an Underground Mine. Journal of Occupational and Environmental Medicine. 46(3). 212–226. 39 indexed citations
13.
Spence, D. Warren, Leonid Kayumov, Adam Chen, et al.. (2004). Acupuncture Increases Nocturnal Melatonin Secretion and Reduces Insomnia and Anxiety: A Preliminary Report. Journal of Neuropsychiatry. 16(1). 19–28. 152 indexed citations
14.
Moller, Henry J., Leonid Kayumov, & Colin M. Shapiro. (2003). Microsleep Episodes, Attention Lapses and Circadian Variation in Psychomotor Performance in a Driving Simulation Paradigm. 8 indexed citations
15.
Rotenberg, Vadim S., et al.. (2002). REM sleep latency and wakefulness in the first sleep cycle as markers of major depression. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 26(6). 1211–1215. 27 indexed citations
16.
Pandi‐Perumal, Seithikurippu R., Leonid Kayumov, Martin R. Ralph, et al.. (2002). Senescence, sleep, and circadian rhythms. Ageing Research Reviews. 1(3). 559–604. 105 indexed citations
17.
Kayumov, Leonid, et al.. (2001). A Randomized, Double-Blind, Placebo-Controlled Crossover Study of the Effect of Exogenous Melatonin on Delayed Sleep Phase Syndrome. Psychosomatic Medicine. 63(1). 40–48. 117 indexed citations
18.
Kayumov, Leonid, et al.. (2000). Sleepiness, fatigue, and impaired alertness.. PubMed. 5(1). 2–5. 11 indexed citations
19.
McAndrews, Mary Pat, et al.. (2000). Self‐report of memory and affective dysfunction in association with medication use in a sample of individuals with chronic sleep disturbance. Human Psychopharmacology Clinical and Experimental. 15(8). 583–587. 4 indexed citations
20.
Rotenberg, Vadim S., Leonid Kayumov, Jack Hadjez, et al.. (1997). Rem sleep in depressed patients: Different attempts to achieve adaptation. Journal of Psychosomatic Research. 42(6). 565–575. 19 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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