Nadeem Kalak

2.6k total citations
40 papers, 1.9k citations indexed

About

Nadeem Kalak is a scholar working on Experimental and Cognitive Psychology, Clinical Psychology and Cognitive Neuroscience. According to data from OpenAlex, Nadeem Kalak has authored 40 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Experimental and Cognitive Psychology, 10 papers in Clinical Psychology and 10 papers in Cognitive Neuroscience. Recurrent topics in Nadeem Kalak's work include Sleep and related disorders (21 papers), Sleep and Wakefulness Research (9 papers) and Circadian rhythm and melatonin (5 papers). Nadeem Kalak is often cited by papers focused on Sleep and related disorders (21 papers), Sleep and Wakefulness Research (9 papers) and Circadian rhythm and melatonin (5 papers). Nadeem Kalak collaborates with scholars based in Switzerland, Iran and United Kingdom. Nadeem Kalak's co-authors include Serge Brand, Markus Gerber, Edith Holsboer‐Trachsler, Uwe Pühse, Sakari Lemola, Roumen Kirov, Peter Clough, Christin Lang, Catherine Elliot and Thorsten Mikoteit and has published in prestigious journals such as SHILAP Revista de lepidopterología, Frontiers in Psychology and Journal of Adolescent Health.

In The Last Decade

Nadeem Kalak

39 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Nadeem Kalak Switzerland	23	872	538	386	298	280	40	1.9k
Jeroen S. Legerstee Netherlands	22	788 0.9×	1.4k 2.6×	295 0.8×	137 0.5×	670 2.4×	57	2.8k
Hanna Karen Moreira Antunes Brazil	26	384 0.4×	284 0.5×	257 0.7×	686 2.3×	150 0.5×	91	2.2k
Andreas Schwerdtfeger Austria	25	824 0.9×	580 1.1×	511 1.3×	105 0.4×	440 1.6×	123	2.3k
Yuji Sakano Japan	20	576 0.7×	641 1.2×	368 1.0×	88 0.3×	309 1.1×	92	1.8k
Rachel Epstein Israel	21	1.2k 1.4×	356 0.7×	856 2.2×	174 0.6×	178 0.6×	39	2.0k
Royette Tavernier Canada	13	512 0.6×	430 0.8×	232 0.6×	82 0.3×	230 0.8×	14	1.4k
Michelle F. Dennis United States	29	378 0.4×	1.3k 2.4×	256 0.7×	300 1.0×	136 0.5×	77	2.4k
Esperanza González‐Bono Spain	24	563 0.6×	514 1.0×	300 0.8×	129 0.4×	493 1.8×	76	2.1k
Jean‐Philippe Gouin Canada	25	451 0.5×	668 1.2×	245 0.6×	251 0.8×	339 1.2×	95	2.2k
Eeva T. Aronen Finland	32	1.0k 1.2×	968 1.8×	929 2.4×	212 0.7×	189 0.7×	95	2.8k

Countries citing papers authored by Nadeem Kalak

Since Specialization

Citations

This map shows the geographic impact of Nadeem Kalak'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 Nadeem Kalak with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nadeem Kalak more than expected).

Fields of papers citing papers by Nadeem Kalak

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nadeem Kalak. 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 Nadeem Kalak. The network helps show where Nadeem Kalak may publish in the future.

Co-authorship network of co-authors of Nadeem Kalak

This figure shows the co-authorship network connecting the top 25 collaborators of Nadeem Kalak. A scholar is included among the top collaborators of Nadeem Kalak 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 Nadeem Kalak. Nadeem Kalak is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Kalak, Nadeem, et al.. (2020). Workplace-Related Interpersonal Group Psychotherapy to Improve Life at Work in Individuals With Major Depressive Disorders: A Randomized Interventional Pilot Study. Frontiers in Psychiatry. 11. 168–168. 10 indexed citations

Légeret, Corinne, Laura Mählmann, Markus Gerber, et al.. (2019). Favorable impact of long-term exercise on disease symptoms in pediatric patients with inflammatory bowel disease. BMC Pediatrics. 19(1). 297–297. 15 indexed citations

Kalak, Nadeem, Markus Gerber, Dena Sadeghi Bahmani, et al.. (2019). Effects of earlier bedtimes on sleep duration, sleep complaints and psychological functioning in adolescents. Somnologie - Schlafforschung und Schlafmedizin. 23(2). 116–124. 5 indexed citations

Brand, Serge, Thorsten Mikoteit, Nadeem Kalak, et al.. (2018). Cortisol Impacted on Explicit Learning Encoding, but Not on Storage and Retrieval, and Was Not Associated With Sleep Patterns—Results From the Trier Social Stress Test for Children (TSST-C) Among 9-Years Old Children. Frontiers in Psychology. 9. 2240–2240. 6 indexed citations

Mählmann, Laura, Markus Gerber, Raoul I. Furlano, et al.. (2017). Psychological wellbeing and physical activity in children and adolescents with inflammatory bowel disease compared to healthy controls. BMC Gastroenterology. 17(1). 160–160. 20 indexed citations

Mählmann, Laura, Markus Gerber, Raoul I. Furlano, et al.. (2017). Impaired objective and subjective sleep in children and adolescents with inflammatory bowel disease compared to healthy controls. Sleep Medicine. 39. 25–31. 14 indexed citations

Gerber, Markus, Sakari Lemola, Stephen P. Becker, et al.. (2016). Examining Dark Triad traits in relation to sleep disturbances, anxiety sensitivity and intolerance of uncertainty in young adults. Comprehensive Psychiatry. 68. 103–110. 55 indexed citations

Brand, Serge, Nadeem Kalak, Markus Gerber, et al.. (2016). During early to mid adolescence, moderate to vigorous physical activity is associated with restoring sleep, psychological functioning, mental toughness and male gender. Journal of Sports Sciences. 35(5). 426–434. 70 indexed citations

Brand, Serge, Roumen Kirov, Nadeem Kalak, et al.. (2015). Poor Sleep Is Related to Lower Emotional Competence Among Adolescents. Behavioral Sleep Medicine. 14(6). 602–614. 68 indexed citations

10.

Brand, Serge, Roumen Kirov, Nadeem Kalak, et al.. (2015). Perfectionism related to self-reported insomnia severity, but not when controlled for stress and emotion regulation. Neuropsychiatric Disease and Treatment. 11. 263–263. 47 indexed citations

11.

Brand, Serge, et al.. (2015). The effectiveness of cognitive behavioral therapy with respect to psychological symptoms and recovering autobiographical memory in patients suffering from post-traumatic stress disorder. Neuropsychiatric Disease and Treatment. 11. 395–395. 17 indexed citations

12.

Brand, Serge, Nadeem Kalak, Markus Gerber, et al.. (2014). High self-perceived exercise exertion before bedtime is associated with greater objectively assessed sleep efficiency. Sleep Medicine. 15(9). 1031–1036. 58 indexed citations

13.

Brand, Serge, Hafez Bajoghli, Zahra Keshavarzi, et al.. (2014). “Tell me, how bright your hypomania is, and I tell you, if you are happily in love!”—Among young adults in love, bright side hypomania is related to reduced depression and anxiety, and better sleep quality. International Journal of Psychiatry in Clinical Practice. 19(1). 24–31. 18 indexed citations

14.

Brand, Serge, Nadeem Kalak, Markus Gerber, et al.. (2014). During early and mid-adolescence, greater mental toughness is related to increased sleep quality and quality of life. Journal of Health Psychology. 21(6). 905–915. 50 indexed citations

15.

Gerber, Markus, Ingibjörg H. Jónsdóttir, Nadeem Kalak, et al.. (2013). Objectively assessed physical activity is associated with increased hair cortisol content in young adults. Stress. 16(6). 593–599. 36 indexed citations

16.

Gerber, Markus, Nadeem Kalak, Catherine Elliot, et al.. (2013). Both Hair Cortisol Levels and Perceived Stress Predict Increased Symptoms of Depression: An Exploratory Study in Young Adults. Neuropsychobiology. 68(2). 100–109. 54 indexed citations

17.

Wollmer, M. Axel, Nadeem Kalak, Johannes Beck, et al.. (2012). Facing depression with botulinum toxin: A randomized controlled trial. Journal of Psychiatric Research. 46(5). 574–581. 130 indexed citations

18.

Krüger, Tillmann H. C., Nadeem Kalak, Johannes Beck, et al.. (2012). O-29 - Botulinum neurotoxin for treatment of depression. European Psychiatry. 27. 1–1.

19.

Kalak, Nadeem, Markus Gerber, Roumen Kirov, et al.. (2012). Daily Morning Running for 3 Weeks Improved Sleep and Psychological Functioning in Healthy Adolescents Compared With Controls. Journal of Adolescent Health. 51(6). 615–622. 175 indexed citations

20.

Brand, Serge, Markus Gerber, Johannes Beck, et al.. (2011). Perceived parenting styles differ between genders but not between elite athletes and controls. Adolescent Health Medicine and Therapeutics. 2. 9–9. 16 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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