Kenichi Hayashida

812 total citations
25 papers, 578 citations indexed

About

Kenichi Hayashida is a scholar working on Cognitive Neuroscience, Experimental and Cognitive Psychology and Endocrine and Autonomic Systems. According to data from OpenAlex, Kenichi Hayashida has authored 25 papers receiving a total of 578 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Cognitive Neuroscience, 15 papers in Experimental and Cognitive Psychology and 9 papers in Endocrine and Autonomic Systems. Recurrent topics in Kenichi Hayashida's work include Sleep and Wakefulness Research (15 papers), Sleep and related disorders (14 papers) and Circadian rhythm and melatonin (6 papers). Kenichi Hayashida is often cited by papers focused on Sleep and Wakefulness Research (15 papers), Sleep and related disorders (14 papers) and Circadian rhythm and melatonin (6 papers). Kenichi Hayashida collaborates with scholars based in Japan, Taiwan and United States. Kenichi Hayashida's co-authors include Yuichi Inoue, Yoko Komada, Kiyohisa Takahashi, Makoto Honda, Toru Nakajima, Akiko Ozaki, Masaki Nakamura, Akira Usui, Takashi Abe and Hiroshi Itoh and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and International Journal of Environmental Research and Public Health.

In The Last Decade

Kenichi Hayashida

25 papers receiving 561 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kenichi Hayashida Japan 14 454 403 233 101 85 25 578
Basile Ondzé France 9 571 1.3× 689 1.7× 301 1.3× 163 1.6× 128 1.5× 16 767
Agnès Brion France 8 285 0.6× 343 0.9× 136 0.6× 93 0.9× 39 0.5× 16 414
O. Elkholy Egypt 5 232 0.5× 157 0.4× 68 0.3× 65 0.6× 93 1.1× 20 410
David J. Kupfer United States 11 297 0.7× 294 0.7× 144 0.6× 45 0.4× 117 1.4× 11 527
Kate E. Sprecher United States 7 265 0.6× 320 0.8× 159 0.7× 42 0.4× 186 2.2× 16 516
Timothy Roehrs United States 11 509 1.1× 461 1.1× 117 0.5× 54 0.5× 76 0.9× 14 632
Katia Gagnon Canada 11 142 0.3× 280 0.7× 205 0.9× 37 0.4× 250 2.9× 20 443
James P. Soeffing United States 3 385 0.8× 285 0.7× 87 0.4× 41 0.4× 84 1.0× 3 477
Vincenzo Palomba Italy 5 247 0.5× 312 0.8× 114 0.5× 46 0.5× 62 0.7× 6 405
Phyllis Zee United States 11 287 0.6× 272 0.7× 310 1.3× 57 0.6× 199 2.3× 19 618

Countries citing papers authored by Kenichi Hayashida

Since Specialization
Citations

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

Fields of papers citing papers by Kenichi Hayashida

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kenichi Hayashida

This figure shows the co-authorship network connecting the top 25 collaborators of Kenichi Hayashida. A scholar is included among the top collaborators of Kenichi Hayashida 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 Kenichi Hayashida. Kenichi Hayashida 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.
Ozone, Motohiro, Kenichi Hayashida, Daisuke Harada, et al.. (2024). Efficacy and Safety of Transitioning to Lemborexant from Z-drug, Suvorexant, and Ramelteon in Japanese Insomnia Patients: An Open-label, Multicenter Study. Advances in Therapy. 41(4). 1728–1745. 6 indexed citations
2.
Dash, Amitabh, Kate Pinner, Yuichi Inoue, et al.. (2022). Efficacy and safety of lemborexant over 12 months in Asian adults with insomnia disorder. SHILAP Revista de lepidopterología. 4. 100044–100044. 4 indexed citations
3.
Shiota, Satomi, Hideaki Nakayama, Satoru Tsuiki, et al.. (2021). The role of long‐term continuous positive airway pressure in the progression of obstructive sleep apnoea: A longitudinal cohort study. Journal of Sleep Research. 30(6). e13374–e13374. 6 indexed citations
4.
Hayashida, Kenichi, Mina Kobayashi, Kazuyoshi Namba, et al.. (2015). Progression of obstructive sleep apnoea syndrome in Japanese patients. Sleep And Breathing. 20(2). 711–718. 3 indexed citations
5.
Suzuki, Keisuke, Masayuki Miyamoto, Tomoyuki Miyamoto, et al.. (2015). The effect of comorbidity of restless legs syndrome and migraine on sleep and mood: an integration of multicenter data. Sleep and Biological Rhythms. 14(2). 187–191. 1 indexed citations
6.
Hayashida, Kenichi, Yoko Komada, Masaki Nakamura, et al.. (2013). Factors Associated with Duration Before Receiving Definitive Diagnosis of Narcolepsy among Japanese Patients Affected with the Disorder. International Journal of Behavioral Medicine. 21(6). 966–970. 4 indexed citations
7.
Inoue, Yuichi, et al.. (2012). Efficacy, safety and risk of augmentation of rotigotine for treating restless legs syndrome. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 40. 326–333. 17 indexed citations
8.
Abe, Takashi, Yuichi Inoue, Yoko Komada, et al.. (2011). Relation between morningness–eveningness score and depressive symptoms among patients with delayed sleep phase syndrome. Sleep Medicine. 12(7). 680–684. 78 indexed citations
9.
10.
Komada, Yoko, Kazuyoshi Namba, Taeko Sasai, et al.. (2011). Differences in findings of nocturnal polysomnography and multiple sleep latency test between narcolepsy and idiopathic hypersomnia. Clinical Neurophysiology. 123(1). 137–141. 37 indexed citations
11.
Abe, Takashi, Yoko Komada, Yasushi Nishida, Kenichi Hayashida, & Yuichi Inoue. (2010). Short sleep duration and long spells of driving are associated with the occurrence of Japanese drivers’ rear-end collisions and single-car accidents. Journal of Sleep Research. 19(2). 310–316. 37 indexed citations
12.
Ozaki, Akiko, Yuichi Inoue, Toru Nakajima, et al.. (2008). Health-Related Quality of Life Among Drug-Naïve Patients with Narcolepsy with Cataplexy, Narcolepsy Without Cataplexy, and Idiopathic Hypersomnia Without Long Sleep Time. Journal of Clinical Sleep Medicine. 4(6). 572–578. 69 indexed citations
13.
Hayashida, Kenichi, Yuichi Inoue, Shintaro Chiba, et al.. (2007). Factors influencing subjective sleepiness in patients with obstructive sleep apnea syndrome. Psychiatry and Clinical Neurosciences. 61(5). 558–563. 28 indexed citations
14.
Komada, Yoko, Yuichi Inoue, Kenichi Hayashida, et al.. (2007). Clinical significance and correlates of behaviorally induced insufficient sleep syndrome. Sleep Medicine. 9(8). 851–856. 36 indexed citations
15.
Ito, Hiroshi, et al.. (2006). [Psychiatry and sleep disorders--delirium].. PubMed. 108(11). 1217–21. 3 indexed citations
16.
Sato, Miki, Kenichi Hayashida, Motohiro Ozone, et al.. (2003). Correlations between subjective evaluation about own sleep and that of objective evaluation in psychophysiological insomnia. Sleep and Biological Rhythms. 1(2). 139–140. 2 indexed citations
17.
Takahashi, Toshiharu, Mitsuo Sasaki, Hiroshi Itoh, et al.. (2002). Melatonin alleviates jet lag symptoms caused by an 11‐hour eastward flight. Psychiatry and Clinical Neurosciences. 56(3). 301–302. 22 indexed citations
18.
Takahashi, Toshiharu, Mitsuo Sasaki, Hiroshi Itoh, et al.. (2001). Re‐entrainment of the circadian rhythms of plasma melatonin in an 11‐h eastward bound flight. Psychiatry and Clinical Neurosciences. 55(3). 275–276. 28 indexed citations
19.
Ozone, Motohiro, et al.. (2001). The effects of flumazenil on sleepiness, task performance and nocturnal sleep after anesthesia with midazolam. Psychiatry and Clinical Neurosciences. 55(3). 235–237. 3 indexed citations
20.
Ozone, Motohiro, Hiroshi Itoh, Wataru Yamadera, et al.. (2000). Changes in subjective sleepiness, subjective fatigue and nocturnal sleep after anaesthesia with propofol. Psychiatry and Clinical Neurosciences. 54(3). 317–318. 21 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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