Jun Kohyama

3.3k total citations
132 papers, 2.3k citations indexed

About

Jun Kohyama is a scholar working on Cognitive Neuroscience, Endocrine and Autonomic Systems and Experimental and Cognitive Psychology. According to data from OpenAlex, Jun Kohyama has authored 132 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Cognitive Neuroscience, 48 papers in Endocrine and Autonomic Systems and 38 papers in Experimental and Cognitive Psychology. Recurrent topics in Jun Kohyama's work include Sleep and Wakefulness Research (58 papers), Neuroscience of respiration and sleep (38 papers) and Sleep and related disorders (37 papers). Jun Kohyama is often cited by papers focused on Sleep and Wakefulness Research (58 papers), Neuroscience of respiration and sleep (38 papers) and Sleep and related disorders (37 papers). Jun Kohyama collaborates with scholars based in Japan, United States and Singapore. Jun Kohyama's co-authors include Yoshihide Iwakawa, Jodi A. Mindell, Kaoru Takakusaki, Kiyoji Matsuyama, Avi Sadeh, Masayuki Shimohira, Michio Fukumizu, Takeshi Hasegawa, Naoko Tachibana and S. Mori and has published in prestigious journals such as SHILAP Revista de lepidopterología, Neurology and PEDIATRICS.

In The Last Decade

Jun Kohyama

123 papers receiving 2.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jun Kohyama Japan	26	945	868	725	378	307	132	2.3k
Anna Ivanenko United States	26	990 1.0×	1.1k 1.2×	751 1.0×	708 1.9×	708 2.3×	47	2.3k
James E. Jan Canada	28	852 0.9×	580 0.7×	634 0.9×	132 0.3×	505 1.6×	78	2.5k
Narong Simakajornboon United States	29	916 1.0×	582 0.7×	1.4k 2.0×	1.1k 2.9×	348 1.1×	111	3.0k
E. Zoumakis Greece	20	500 0.5×	801 0.9×	631 0.9×	595 1.6×	97 0.3×	29	2.5k
Yu‐Shu Huang Taiwan	35	1.3k 1.4×	940 1.1×	1.3k 1.8×	1.3k 3.5×	1.1k 3.7×	161	3.8k
Jon F. Sassin United States	26	812 0.9×	641 0.7×	794 1.1×	550 1.5×	137 0.4×	41	2.4k
Luc Laberge Canada	30	615 0.7×	763 0.9×	440 0.6×	260 0.7×	172 0.6×	55	2.4k
Sara Marelli Italy	24	970 1.0×	772 0.9×	640 0.9×	792 2.1×	103 0.3×	76	2.6k
Cornelia Sauter Germany	22	1.3k 1.3×	847 1.0×	275 0.4×	226 0.6×	186 0.6×	58	2.2k
Luciane Bizari Coin de Carvalho Brazil	21	342 0.4×	346 0.4×	279 0.4×	440 1.2×	180 0.6×	84	1.4k

Countries citing papers authored by Jun Kohyama

Since Specialization

Citations

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

Fields of papers citing papers by Jun Kohyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jun Kohyama

This figure shows the co-authorship network connecting the top 25 collaborators of Jun Kohyama. A scholar is included among the top collaborators of Jun Kohyama 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 Jun Kohyama. Jun Kohyama 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

Kohyama, Jun. (2025). Formula for Calculating Optimal Sleep Duration in Adolescents. 4(2). 1 indexed citations

Kohyama, Jun. (2024). A Proposal on the Novel Method to Estimate Optimal Sleep Duration Based on Self-Reported Survey Data. Journal of Behavioral and Brain Science. 14(8). 227–239. 2 indexed citations

Kohyama, Jun. (2024). Re-Evaluating Recommended Optimal Sleep Duration: A Perspective on Sleep Literacy. Children. 11(9). 1098–1098. 1 indexed citations

Kohyama, Jun. (2023). Non-School Day Catch-Up Sleep among Pupils in Japan. Journal of Behavioral and Brain Science. 13(6). 113–125. 2 indexed citations

Mindell, Jodi A., Erin S. Leichman, Jun Kohyama, et al.. (2022). Caregiver perceptions of sleep problems and desired areas of change in young children. Sleep Medicine. 92. 67–72. 8 indexed citations

Kohyama, Jun. (2021). Features of Pupils in Each Dinner Habit: Non-late Regular, Regular but Late, and Irregular. Turkish Archives of Pediatrics. 56(6). 624–630.

Kohyama, Jun. (2020). Lifestyle habits associated with screen time among pupils in Japan. Pediatrics International. 63(2). 189–195. 1 indexed citations

Kohyama, Jun. (2008). Early rising children are more active than late risers. Neuropsychiatric Disease and Treatment. Volume 3(6). 959–963. 17 indexed citations

Miyata, Rie, Masaharu Hayashi, Hiroyuki Sato, et al.. (2006). Sibling cases of Vici syndrome: Sleep abnormalities and complications of renal tubular acidosis. American Journal of Medical Genetics Part A. 143A(2). 189–194. 32 indexed citations

10.

Hayashi, Masaharu, Satoshi Araki, Jun Kohyama, Kei Shioda, & Ryo Fukatsu. (2004). Oxidative nucleotide damage and superoxide dismutase expression in the brains of xeroderma pigmentosum group A and Cockayne syndrome. Brain and Development. 27(1). 34–38. 46 indexed citations

11.

Hayashi, Masaharu, Satoshi Araki, Jun Kohyama, et al.. (2004). Brainstem and Basal Ganglia Lesions in Xeroderma Pigmentosum Group A. Journal of Neuropathology & Experimental Neurology. 63(10). 1048–1057. 17 indexed citations

12.

Hasegawa, Takeshi, et al.. (2002). A Case of Childhood Onset Myoclonus Epilepsy with Ragged-Red Fibers. With Special Reference to Various Clinical Manifestations.:With Special Reference to Various Clinical Manifestations. 34(5). 427–430. 2 indexed citations

13.

Kohyama, Jun. (2001). Asynchronous breathing during sleep. Archives of Disease in Childhood. 84(2). 174–177. 20 indexed citations

14.

Sakuma, Hiroshi, Michio Fukumizu, & Jun Kohyama. (2001). [Efficacy of anticonvulsants on acute encephalitis with refractory, repetitive partial seizures (AERRPS)].. PubMed. 33(5). 385–90. 29 indexed citations

15.

Kohyama, Jun, Satoko Kumada, Masayuki Shimohira, et al.. (2000). Nocturnal Enuresis and the Pontine Reticular Formation. European Urology. 38(5). 631–634. 9 indexed citations

16.

Hayashi, Masaharu, Masahiro Itoh, S. Araki, et al.. (2000). Immunohistochemical analysis of brainstem lesions in infantile spasms. Neuropathology. 20(4). 297–303. 26 indexed citations

17.

Kohyama, Jun, Naoko Tachibana, & M. Taniguchi. (1999). Development of REM sleep atonia. Acta Neurologica Scandinavica. 99(6). 368–373. 15 indexed citations

18.

Kohyama, Jun, et al.. (1996). Phasic motor activity reduction occurring with horizontal rapid eye movements during REM sleep is disturbed in infantile spasms. Journal of the Neurological Sciences. 138(1-2). 82–87. 14 indexed citations

19.

Kohyama, Jun, Masayuki Shimohira, & Yoshihide Iwakawa. (1994). Brainstem control of phasic muscle activity during REM sleep: a review and hypothesis. Brain and Development. 16(2). 81–91. 25 indexed citations

20.

Mori, S., et al.. (1992). Neuronal constituents of postural and locomotor control systems and their interactions in cats.. PubMed. 14 Suppl. S109–20. 57 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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