Akira Usui

661 total citations
25 papers, 473 citations indexed

About

Akira Usui is a scholar working on Experimental and Cognitive Psychology, Cognitive Neuroscience and Endocrine and Autonomic Systems. According to data from OpenAlex, Akira Usui has authored 25 papers receiving a total of 473 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Experimental and Cognitive Psychology, 17 papers in Cognitive Neuroscience and 8 papers in Endocrine and Autonomic Systems. Recurrent topics in Akira Usui's work include Sleep and related disorders (18 papers), Sleep and Wakefulness Research (17 papers) and Restless Legs Syndrome Research (8 papers). Akira Usui is often cited by papers focused on Sleep and related disorders (18 papers), Sleep and Wakefulness Research (17 papers) and Restless Legs Syndrome Research (8 papers). Akira Usui collaborates with scholars based in Japan, United States and Russia. Akira Usui's co-authors include Yuichi Inoue, Yoko Komada, Shigenobu Kanba, Masaki Nakamura, Kenichi Hayashida, Shoichi Asaoka, Kiyohisa Takahashi, Takashi Abe, Mina Kobayashi and Kayo Shibui and has published in prestigious journals such as PLoS ONE, Psychiatry Research and Journal of the Neurological Sciences.

In The Last Decade

Akira Usui

25 papers receiving 455 citations

Peers

Countries citing papers authored by Akira Usui

Since Specialization

Citations

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

Fields of papers citing papers by Akira Usui

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Akira Usui

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

#	Work	Indexed citations
1	Sleep schedules and MSLT‐based diagnosis of narcolepsy type 2 and idiopathic hypersomnia: Exploring potential associations in a large clinical sample 2024 ·Journal of Sleep Research ·Kentaro Matsui, Akira Usui, (unknown), Kenichi Kuriyama, Yuichi Inoue	2
2	Reliability and validity of the Japanese version of the Ullanlinna Narcolepsy Scale and Swiss Narcolepsy Scale for screening Japanese individuals with narcolepsy type 1 2023 ·Sleep Medicine ·(unknown), (unknown), (unknown), Noboru Takeuchi, Hideaki Nakayama, Akira Usui, Yuichi Inoue	1
3	Restless legs syndrome augmentation among Japanese patients receiving pramipexole therapy: Rate and risk factors in a retrospective study 2017 ·PLoS ONE ·Masayoshi Takahashi, (unknown), Masaki Nakamura, Mina Kobayashi, Kentaro Matsui, Eiki Ito, Akira Usui, Yuichi Inoue	8
4	Comparison of clinical features between primary and drug-induced sleep-related eating disorder 2016 ·Neuropsychiatric Disease and Treatment ·Yoko Komada, Yoshikazu Takaesu, Kentaro Matsui, Masaki Nakamura, (unknown), (unknown), Akira Usui, Yuichi Inoue	8
5	The effect of comorbidity of restless legs syndrome and migraine on sleep and mood: an integration of multicenter data 2015 ·Sleep and Biological Rhythms ·Keisuke Suzuki, Masayuki Miyamoto, Tomoyuki Miyamoto, Shiho Suzuki, Yuichi Inoue, (unknown), Kentaro Matsui, (unknown), Kenichi Hayashida, Akira Usui, (unknown), Masaki Nakamura, Koichi Hirata	1
6	Characteristics of Insomniacs Having Sleep State Misperception 2015 ·(unknown), Yoko Komada, Akira Usui, Yuichi Inoue	2
7	The Prevalence and Characteristics of Primary Headache and Dream-Enacting Behaviour in Japanese Patients with Narcolepsy or Idiopathic Hypersomnia: A Multi-Centre Cross-Sectional Study 2015 ·PLoS ONE ·Keisuke Suzuki, Masayuki Miyamoto, Tomoyuki Miyamoto, Yuichi Inoue, Kentaro Matsui, (unknown), Kenichi Hayashida, Akira Usui, (unknown), Masaki Nakamura, (unknown), Ayaka Numao, Yuji Watanabe, Shiho Suzuki, Koichi Hirata	24
8	The validity of the PAM-RL device for evaluating periodic limb movements in sleep and an investigation on night-to-night variability of periodic limb movements during sleep in patients with restless legs syndrome or periodic limb movement disorder using this system 2013 ·Sleep Medicine ·Mina Kobayashi, Kazuyoshi Namba, Eiki Ito, (unknown), Masaki Nakamura, (unknown), (unknown), Tatsuo Kagimura, Akira Usui, Yuichi Inoue	17
9	Cognitive behavioural therapy with behavioural analysis for pharmacological treatment-resistant chronic insomnia 2013 ·Psychiatry Research ·Isa Okajima, Masaki Nakamura, (unknown), Akira Usui, (unknown), (unknown), Shun Nakajima, Yuichi Inoue	14
10	Change in frequency of periodic limb movements during sleep with usage of continuous positive airway pressure in obstructive sleep apnea syndrome 2012 ·Journal of the Neurological Sciences ·Sayaka Aritake‐Okada, Kazuyoshi Namba, (unknown), Shoichi Asaoka, Yoko Komada, Akira Usui, Masato Matsuura, Yuichi Inoue	19
11	Relation between morningness–eveningness score and depressive symptoms among patients with delayed sleep phase syndrome 2011 ·Sleep Medicine ·Takashi Abe, Yuichi Inoue, Yoko Komada, Masaki Nakamura, Shoichi Asaoka, (unknown), Kayo Shibui, Kenichi Hayashida, Akira Usui, Kiyohisa Takahashi	78
12	Quality of life in patients with narcolepsy with cataplexy, narcolepsy without cataplexy, and idiopathic hypersomnia without long sleep time: Comparison between patients on psychostimulants, drug-naïve patients and the general Japanese population 2011 ·Sleep Medicine ·Akiko Ozaki, Yuichi Inoue, Kenichi Hayashida, Toru Nakajima, Makoto Honda, Akira Usui, Yoko Komada, Mina Kobayashi, Kiyohisa Takahashi	66
13	Do you perform the multiple sleep latency test according to the guidelines? A case with multiple sleep onset REM periods 2008 ·Sleep and Biological Rhythms ·Akira Usui, (unknown), Yutaka Matsushita, (unknown), (unknown), Tsuyoshi Watanabe, Nobutaka Motohashi	2
14	Effectiveness of Aroma on Work Efficiency: Lavender Aroma during Recesses Prevents Deterioration of Work Performance 2005 ·Chemical Senses ·(unknown), (unknown), Akira Usui, (unknown), Shigenobu Kanba	52
15	Elderly people often have naps that are not subjectively recognized as naps 2003 ·Sleep and Biological Rhythms ·Akira Usui, (unknown), (unknown), Takamasa Noda, Shigenobu Kanba	2
16	Seasonal changes in human sleep–wake rhythm in Antarctica and Japan 2000 ·Psychiatry and Clinical Neurosciences ·Akira Usui, (unknown), (unknown), (unknown), (unknown), Shigenobu Kanba	19
17	Bright light treatment for night‐time insomnia and daytime sleepiness in elderly people: Comparison with a short‐acting hypnotic 2000 ·Psychiatry and Clinical Neurosciences ·Akira Usui, (unknown), Yutaka Matsushita, (unknown), Shigenobu Kanba	5
18	Validity of sleep log compared with actigraphic sleep–wake state II 1999 ·Psychiatry and Clinical Neurosciences ·Akira Usui, (unknown), (unknown), (unknown), (unknown), Shigenobu Kanba	23
19	Validity of sleep log compared with actigraphic Sleep‐wake state 1998 ·Psychiatry and Clinical Neurosciences ·Akira Usui, (unknown), (unknown), (unknown), (unknown), Shigenobu Kanba	6
20	Effect of Pravastatin on Human Sleep 1993 ·Psychiatry and Clinical Neurosciences ·Yuichi Kamei, Shuichiro Shirakawa, (unknown), Akira Usui, Makoto Uchiyama, Tsuyoshi Watanabe, (unknown), Tetsuhiko Kariya	5

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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