Sunao Uchida

3.5k total citations · 1 hit paper
75 papers, 2.5k citations indexed

About

Sunao Uchida is a scholar working on Cognitive Neuroscience, Experimental and Cognitive Psychology and Endocrine and Autonomic Systems. According to data from OpenAlex, Sunao Uchida has authored 75 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Cognitive Neuroscience, 29 papers in Experimental and Cognitive Psychology and 15 papers in Endocrine and Autonomic Systems. Recurrent topics in Sunao Uchida's work include Sleep and Wakefulness Research (37 papers), Sleep and related disorders (25 papers) and EEG and Brain-Computer Interfaces (21 papers). Sunao Uchida is often cited by papers focused on Sleep and Wakefulness Research (37 papers), Sleep and related disorders (25 papers) and EEG and Brain-Computer Interfaces (21 papers). Sunao Uchida collaborates with scholars based in Japan, United States and Norway. Sunao Uchida's co-authors include Kyoko Nishihara, Irwin Feinberg, Yuko Morita, Nobuhide Hirai, Taketoshi Maehara, Yoshiro Okubo, Toshinori Kobayashi, M. Terashima, Katsuhiro Inoue and Shuichiro Shirakawa and has published in prestigious journals such as Journal of Neuroscience, SHILAP Revista de lepidopterología and Nature Neuroscience.

In The Last Decade

Sunao Uchida

73 papers receiving 2.5k 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.

Proposed supplements and amendments to ‘A Manual of Standardized Terminology, Techniques and Scoring System for Sleep Stages of Human Subjects’, the Rechtschaffen & Kales (1968) standard

2001 505 citations Sunao Uchida et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sunao Uchida Japan	27	1.7k	1.0k	465	453	240	75	2.5k
Pierre Denise France	31	1.4k 0.9×	608 0.6×	426 0.9×	575 1.3×	182 0.8×	143	3.1k
William H. Moorcroft United States	10	1.1k 0.7×	1.6k 1.6×	648 1.4×	506 1.1×	82 0.3×	15	2.5k
Kirstie N. Anderson United Kingdom	26	1.0k 0.6×	1.3k 1.2×	431 0.9×	521 1.2×	143 0.6×	73	2.6k
Yaron Dagan Israel	22	929 0.6×	857 0.8×	578 1.2×	269 0.6×	76 0.3×	42	1.7k
R.T. Pivik United States	24	1.3k 0.8×	545 0.5×	345 0.7×	227 0.5×	205 0.9×	79	2.5k
Sergio Chieffi Italy	32	1.7k 1.0×	457 0.4×	435 0.9×	576 1.3×	88 0.4×	97	3.4k
Nadia Gosselin Canada	33	1.8k 1.1×	1.0k 1.0×	903 1.9×	1.1k 2.5×	97 0.4×	127	3.7k
M. G. Terzano Italy	21	2.3k 1.4×	955 0.9×	548 1.2×	470 1.0×	279 1.2×	42	2.9k
Georg Gruber Austria	27	2.6k 1.6×	1.6k 1.6×	535 1.2×	569 1.3×	192 0.8×	47	3.2k
Gerhard Klösch Austria	24	1.9k 1.1×	1.2k 1.1×	306 0.7×	336 0.7×	182 0.8×	84	2.8k

Countries citing papers authored by Sunao Uchida

Since Specialization

Citations

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

Fields of papers citing papers by Sunao Uchida

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sunao Uchida

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

Morita, Yuko, Keiko Ogawa, & Sunao Uchida. (2016). Napping after complex motor learning enhances juggling performance. Sleep Science. 9(2). 112–116. 23 indexed citations

Uchida, Sunao, et al.. (2014). Effects of Five Nights under Normobaric Hypoxia on Sleep Quality. Medicine & Science in Sports & Exercise. 47(7). 1512–1518. 4 indexed citations

Takeda, Noriko & Sunao Uchida. (2013). Exercise and physical activity in the treatment of the depression-current status and future direction-. 28(0). 20–25. 1 indexed citations

Ogawa‐Ochiai, Keiko, et al.. (2011). Effects of an Early Evening 10-km Run on Nocturnal Sleep Homeostatically Degraded by an Afternoon Nap. Waseda University Repository (Waseda University).

Muneoka, Katsumasa, et al.. (2008). In a Case of Alzheimer’s Disease, Aggressiveness Disappeared after an Infarction in the Anterior Thalamic Nucleus. Cerebrovascular Diseases. 26(6). 664–665. 2 indexed citations

Yasukawa, Tsutomu, et al.. (2007). Copper foreign body in the lens without damage of iris and lens capsule. International Ophthalmology. 27(5). 329–331. 2 indexed citations

Uchida, Sunao, et al.. (2007). Changes in sleep quality of athletes under normobaric hypoxia equivalent to 2,000-m altitude: a polysomnographic study. Journal of Applied Physiology. 103(6). 2005–2011. 34 indexed citations

Nishida, Masaki, Sunao Uchida, Nobuhide Hirai, et al.. (2005). High frequency activities in the human orbitofrontal cortex in sleep–wake cycle. Neuroscience Letters. 379(2). 110–115. 13 indexed citations

Yoda, Tamae, Larry I. Crawshaw, Mayumi Nakamura, et al.. (2005). Effects of alcohol on thermoregulation during mild heat exposure in humans. Alcohol. 36(3). 195–200. 38 indexed citations

10.

Nishihara, Kyoko, Shigeko Horiuchi, Hiromi Eto, Sunao Uchida, & Makoto Honda. (2004). Delta and theta power spectra of night sleep EEG are higher in breast-feeding mothers than in non-pregnant women. Neuroscience Letters. 368(2). 216–220. 17 indexed citations

11.

Nishihara, Kyoko, Shigeko Horiuchi, Hiromi Eto, & Sunao Uchida. (2002). The development of infants' circadian rest–activity rhythm and mothers' rhythm. Physiology & Behavior. 77(1). 91–98. 60 indexed citations

12.

Takanashi, Taiji, et al.. (2002). Oxybuprocaine induces a false-positive response in immunochromatographic SAS Adeno Test 1 1The authors have no proprietary interest in any aspect of this study.. Ophthalmology. 109(4). 808–809. 3 indexed citations

13.

Takanashi, Taiji, Sunao Uchida, Machiko Arita, Morio Okada, & Satoshi Kashii. (2001). Orbital inflammatory pseudotumor and ischemic vasculitis in Churg-Strauss syndrome. Ophthalmology. 108(6). 1129–1133. 78 indexed citations

14.

Sudo, Yasuhiko, Tetsuya Suhara, Kazutoshi Suzuki, et al.. (1999). Muscarinic receptor occupancy by biperiden in living human brain. Life Sciences. 64(8). PL99–PL104. 10 indexed citations

15.

Uchida, Sunao, et al.. (1997). Human sleep electroencephalogram analysis based on the Instantaneous Maximum Entropy Method. IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences. 965–970. 3 indexed citations

16.

Uchida, Sunao, et al.. (1996). Flunitrazepam effects on human sleep eeg spectra II: Sigma and beta alterations during NREM sleep. Life Sciences. 59(9). 117–120. 7 indexed citations

17.

Uchida, Sunao, et al.. (1994). Dynamic relationships between sleep spindles and delta waves during a NREM period. Brain Research Bulletin. 33(3). 351–355. 42 indexed citations

18.

Ishikawa, Akira, Takeshi Shiono, & Sunao Uchida. (1994). VOGT-KOYANAGI-HARADA DISEASE IN IDENTICAL TWINS. Retina. 14(5). 435–437. 16 indexed citations

19.

Uchida, Sunao, et al.. (1992). Beta (20–28 Hz) and Delta (0.3–3 Hz) EEGs Oscillate Reciprocally Across NREM and REM Sleep. SLEEP. 15(4). 352–358. 87 indexed citations

20.

Uchida, Sunao, et al.. (1991). Sigma (12–15 Hz) and Delta (0.3–3 Hz) EEG oscillate reciprocally within NREM sleep. Brain Research Bulletin. 27(1). 93–96. 108 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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