Yuichi Kamei

3.9k total citations · 1 hit paper
45 papers, 2.1k citations indexed

About

Yuichi Kamei is a scholar working on Experimental and Cognitive Psychology, Cognitive Neuroscience and Endocrine and Autonomic Systems. According to data from OpenAlex, Yuichi Kamei has authored 45 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Experimental and Cognitive Psychology, 33 papers in Cognitive Neuroscience and 31 papers in Endocrine and Autonomic Systems. Recurrent topics in Yuichi Kamei's work include Sleep and related disorders (34 papers), Sleep and Wakefulness Research (31 papers) and Circadian rhythm and melatonin (30 papers). Yuichi Kamei is often cited by papers focused on Sleep and related disorders (34 papers), Sleep and Wakefulness Research (31 papers) and Circadian rhythm and melatonin (30 papers). Yuichi Kamei collaborates with scholars based in Japan, United States and Hungary. Yuichi Kamei's co-authors include Kayo Shibui, Masako Okawa, Makoto Uchiyama, Keiko Kim, Yuriko Doi, Masumi Minowa, Kazuo Mishima, Kiyohisa Takahashi, Shingo Kitamura and Akiko Hida and has published in prestigious journals such as Scientific Reports, Biological Psychiatry and Biochemical and Biophysical Research Communications.

In The Last Decade

Yuichi Kamei

45 papers receiving 2.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Psychometric assessment of subjective sleep quality using the Japanese version of the Pittsburgh Sleep Quality Index (PSQI-J) in psychiatric disordered and control subjects

2000 747 citations Yuriko Doi, Masumi Minowa et al. Psychiatry Research profile →

Peers

Yuichi Kamei

ECP

EAS

PHYSI

PMH

Kayo Shibui Japan

Fernando Mazzilli Louzada Brazil

Ana Amélia Benedito‐Silva Brazil

Leonid Kayumov Canada

Virginie Bayon France

Christian L. Nicholas Australia

Nicole Lovato Australia

Terry Brown United States

Luciana Besedovsky Germany

R. Robert Auger United States

Kayo Shibui Japan

Yuichi Kamei

1.7k ×1.2

ECP

1.3k ×1.3

1.1k ×1.1

EAS

333 ×1.1

PHYSI

169 ×1.1

PMH

Citations per year, relative to Yuichi Kamei Yuichi Kamei (= 1×) peers Kayo Shibui

Countries citing papers authored by Yuichi Kamei

Since Specialization

Citations

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

Fields of papers citing papers by Yuichi Kamei

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yuichi Kamei

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

Okajima, Isa, Shun Nakajima, Yuichi Inoue, et al.. (2018). Effectiveness of cognitive behavioral therapy for pharmacotherapy-resistant chronic insomnia: a multi-center randomized controlled trial in Japan. Sleep Medicine. 50. 105–112. 12 indexed citations

Hida, Akiko, Shingo Kitamura, Hiroshi Kadotani, et al.. (2018). Lack of association between PER3 variable number tandem repeat and circadian rhythm sleep–wake disorders. Human Genome Variation. 5(1). 17–17. 8 indexed citations

Okada, Masakazu, Shingo Kitamura, Yoshitaka Iwadare, et al.. (2017). Reliability and validity of a brief sleep questionnaire for children in Japan. Journal of PHYSIOLOGICAL ANTHROPOLOGY. 36(1). 35–35. 22 indexed citations

Kitamura, Shingo, Yuki Motomura, Akiko Hida, et al.. (2014). Validity of an algorithm for determining sleep/wake states using a new actigraph. Journal of PHYSIOLOGICAL ANTHROPOLOGY. 33(1). 31–31. 68 indexed citations

Hida, Akiko, Shingo Kitamura, Yasuko Katayose, et al.. (2014). Screening of Clock Gene Polymorphisms Demonstrates Association of a PER3 Polymorphism with Morningness–Eveningness Preference and Circadian Rhythm Sleep Disorder. Scientific Reports. 4(1). 6309–6309. 96 indexed citations

Hida, Akiko, Shingo Kitamura, Minori Enomoto, et al.. (2013). In vitro circadian period is associated with circadian/sleep preference. Scientific Reports. 3(1). 2074–2074. 43 indexed citations

Kamei, Yuichi & Yoshitaka Iwadare. (2012). Sleep in childhood. 61. 11–17. 2 indexed citations

Kuriyama, Kenichi, Makoto Uchiyama, Hiroyuki Suzuki, et al.. (2005). Diurnal fluctuation of time perception under 30-h sustained wakefulness. Neuroscience Research. 53(2). 123–128. 44 indexed citations

Suzuki, Hiroyuki, Makoto Uchiyama, Hirokuni Tagaya, et al.. (2004). Dreaming During Non-rapid Eye Movement Sleep in the Absence of Prior Rapid Eye Movement Sleep. SLEEP. 27(8). 1486–1490. 45 indexed citations

10.

Kuriyama, Kenichi, Makoto Uchiyama, Hiroyuki Suzuki, et al.. (2003). Circadian fluctuation of time perception in healthy human subjects. Neuroscience Research. 46(1). 23–31. 45 indexed citations

11.

Uchiyama, Makoto, Kayo Shibui, Tatsuro Hayakawa, et al.. (2002). Larger Phase Angle Between Sleep Propensity and Melatonin Rhythms in Sighted Humans with Non-24-Hour Sleep-Wake Syndrome. SLEEP. 25(1). 83–88. 32 indexed citations

12.

Ebisawa, Takashi, Makoto Uchiyama, Naofumi Kajimura, et al.. (2000). Genetic polymorphisms of human melatonin 1b receptor gene in circadian rhythm sleep disorders and controls. Neuroscience Letters. 280(1). 29–32. 31 indexed citations

13.

Shibui, Kayo, Makoto Uchiyama, Yoshihisa Kudo, et al.. (2000). Diurnal fluctuation of sleep propensity and hormonal secretion across the menstrual cycle. Biological Psychiatry. 48(11). 1062–1068. 66 indexed citations

14.

Okawa, Masako, Kayo Shibui, Keiko Kim, et al.. (2000). Altered phase relation between sleep timing and core body temperature rhythm in delayed sleep phase syndrome and non-24-hour sleep–wake syndrome in humans. Neuroscience Letters. 294(2). 101–104. 79 indexed citations

15.

Kamei, Yuichi, Tatsuro Hayakawa, Jujiro Urata, et al.. (2000). Melatonin treatment for circadian rhythm sleep disorders. Psychiatry and Clinical Neurosciences. 54(3). 381–382. 36 indexed citations

16.

Doi, Yuriko, Masumi Minowa, Makoto Uchiyama, et al.. (2000). Psychometric assessment of subjective sleep quality using the Japanese version of the Pittsburgh Sleep Quality Index (PSQI-J) in psychiatric disordered and control subjects. Psychiatry Research. 97(2-3). 165–172. 747 indexed citations breakdown →

17.

Ebisawa, Takashi, Naofumi Kajimura, Makoto Uchiyama, et al.. (1999). Alleic Variants of Human Melatonin 1a Receptor: Function and Prevalence in Subjects with Circadian Rhythm Sleep Disorders. Biochemical and Biophysical Research Communications. 262(3). 832–837. 41 indexed citations

18.

Kamei, Yuichi, Jujiro Urata, Tatsuro Hayakawa, et al.. (1998). Clinical characteristics of circadian rhythm sleep disorders. Psychiatry and Clinical Neurosciences. 52(2). 234–235. 21 indexed citations

19.

Shibui, Kayo, et al.. (1998). Continuous measurement of temperature in non‐24 hour sleep‐wake syndrome. Psychiatry and Clinical Neurosciences. 52(2). 236–237. 6 indexed citations

20.

Okawa, Masako, et al.. (1998). Melatonin treatment for circadian rhythm sleep disorders. Psychiatry and Clinical Neurosciences. 52(2). 259–260. 52 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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