Eiji Oka

2.6k total citations
111 papers, 2.0k citations indexed

About

Eiji Oka is a scholar working on Psychiatry and Mental health, Pediatrics, Perinatology and Child Health and Cellular and Molecular Neuroscience. According to data from OpenAlex, Eiji Oka has authored 111 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 95 papers in Psychiatry and Mental health, 47 papers in Pediatrics, Perinatology and Child Health and 36 papers in Cellular and Molecular Neuroscience. Recurrent topics in Eiji Oka's work include Epilepsy research and treatment (92 papers), Neuroscience and Neuropharmacology Research (34 papers) and Pharmacological Effects and Toxicity Studies (31 papers). Eiji Oka is often cited by papers focused on Epilepsy research and treatment (92 papers), Neuroscience and Neuropharmacology Research (34 papers) and Pharmacological Effects and Toxicity Studies (31 papers). Eiji Oka collaborates with scholars based in Japan, United States and Russia. Eiji Oka's co-authors include Yoko Ohtsuka, Shunsuke Ohtahara, Harumi Yoshinaga, Katsuhiro Kobayashi, Yasuko Yamatogi, Tatsuya Ogino, Iori Ohmori, Kenji Shimizu, Mamoru Ouchida and Nagako Murakami and has published in prestigious journals such as Biochemical and Biophysical Research Communications, Life Sciences and Epilepsia.

In The Last Decade

Eiji Oka

106 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Eiji Oka Japan 24 1.5k 883 627 546 312 111 2.0k
Shunsuke Ohtahara Japan 27 1.6k 1.1× 1.0k 1.2× 668 1.1× 424 0.8× 344 1.1× 119 2.2k
P. Plouin France 22 972 0.7× 929 1.1× 444 0.7× 404 0.7× 238 0.8× 66 1.9k
Harumi Yoshinaga Japan 26 1.4k 1.0× 683 0.8× 681 1.1× 979 1.8× 219 0.7× 126 2.3k
Jerome Engel United States 14 2.0k 1.4× 885 1.0× 836 1.3× 564 1.0× 276 0.9× 25 2.6k
Michelle Bureau Italy 29 1.7k 1.1× 996 1.1× 763 1.2× 381 0.7× 448 1.4× 70 2.2k
Rainer Boor Germany 31 1.5k 1.0× 744 0.8× 583 0.9× 890 1.6× 282 0.9× 71 2.5k
Giuseppe Gobbi Italy 28 1.2k 0.8× 649 0.7× 433 0.7× 427 0.8× 551 1.8× 85 2.1k
R. Canger Italy 24 1.5k 1.0× 1.1k 1.3× 464 0.7× 304 0.6× 319 1.0× 62 2.1k
Dinesh Talwar United States 17 978 0.7× 524 0.6× 494 0.8× 298 0.5× 414 1.3× 33 1.7k
Lucia Fusco Italy 28 1.5k 1.0× 740 0.8× 587 0.9× 287 0.5× 454 1.5× 87 2.2k

Countries citing papers authored by Eiji Oka

Since Specialization
Citations

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

Fields of papers citing papers by Eiji Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Eiji Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Eiji Oka. A scholar is included among the top collaborators of Eiji Oka 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 Eiji Oka. Eiji Oka 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.
Akiyama, Tomoyuki, Katsuhiro Kobayashi, Tatsuya Ogino, et al.. (2006). A population-based survey of childhood epilepsy in Okayama Prefecture, Japan: Reclassification by a newly proposed diagnostic scheme of epilepsies in 2001. Epilepsy Research. 70. 34–40. 8 indexed citations
2.
Ogino, Tatsuya, et al.. (2004). Memory function decline over 18 months after selective amygdalohippocampectomy. Epileptic Disorders. 6(2). 115–120.
3.
Ogino, Tatsuya, et al.. (2004). Symptoms related to ADHD observed in patients with pervasive developmental disorder. Brain and Development. 27(5). 345–348. 21 indexed citations
4.
Ohtsuka, Yoko, Iori Ohmori, Tatsuya Ogino, et al.. (2003). Paroxysmal movement disorders in severe myoclonic epilepsy in infancy. Brain and Development. 25(6). 401–405. 12 indexed citations
5.
Kobayashi, Katsuhiro, et al.. (2003). Clinical and electroencephalographic characteristics of children with febrile seizures plus. Brain and Development. 26(4). 262–268. 2 indexed citations
6.
Ohmori, Iori, Yoko Ohtsuka, Tatsuya Ogino, et al.. (2002). The Relationship between Paroxysmal Kinesigenic Choreoathetosis and Epilepsy. Neuropediatrics. 33(1). 15–20. 17 indexed citations
7.
Akiyama, Tomoyuki, Katsuhiro Kobayashi, Harumi Yoshinaga, et al.. (2001). Electroencephalographic changes and their regional differences during pediatric cardiovascular surgery with hypothermia. Brain and Development. 23(2). 115–121. 14 indexed citations
8.
Murakami, Nagako, Takashi Asano, Tatsuya Ogino, et al.. (2000). The Effect of Ethyl Loflazepate on Refractory Epilepsy. Journal of the Japan Epilepsy Society. 18(2). 133–139. 2 indexed citations
9.
Ohtsuka, Yoko, Masahiro Sato, & Eiji Oka. (1999). Nonconvulsive Status Epilepticus in Childhood Localization‐Related Epilepsy. Epilepsia. 40(7). 1003–1010. 12 indexed citations
10.
Ohtsuka, Yoko, Iori Ohmori, & Eiji Oka. (1998). Long‐Term Follow‐Up of Childhood Epilepsy Associated with Tuberous Sclerosis. Epilepsia. 39(11). 1158–1163. 31 indexed citations
11.
Ohmori, Iori, et al.. (1997). Electroclinical study of localization-related epilepsies in early infancy. Pediatric Neurology. 16(2). 131–136. 6 indexed citations
12.
Ohtahara, Shunsuke, Yoko Ohtsuka, & Eiji Oka. (1997). Epileptic encephalopathies in early infancy. The Indian Journal of Pediatrics. 64(5). 603–612. 10 indexed citations
13.
Ohtsuka, Yoko, et al.. (1996). Partial Seizures in West Syndrome. Epilepsia. 37(11). 1060–1067. 27 indexed citations
14.
Yoshinaga, Harumi, Masahiro Sato, Eiji Oka, & Shunsuke Ohtahara. (1995). Spike dipole analysis using SEP dipole as a marker. Brain Topography. 8(1). 7–11. 3 indexed citations
15.
Ohtahara, Shunsuke, Yoko Ohtsuka, Yasuko Yamatogi, et al.. (1993). Prenatal Etiologies of West Syndrome. Epilepsia. 34(4). 716–722. 64 indexed citations
16.
Ohtsuka, Yoko, et al.. (1988). Rational Treatment of Refractory Epilepsy in Childhood. Psychiatry and Clinical Neurosciences. 42(3). 443–447. 1 indexed citations
17.
Ohtsuka, Yoko, Tatsuya Ogino, Nagako Murakami, et al.. (1987). Evaluation of refractoriness in childhood epilepsy.. Journal of the Japan Epilepsy Society. 5(1). 34–40. 2 indexed citations
18.
Oka, Eiji, et al.. (1984). Mental Retardation in Epileptic Children-A Neuroepidemiologic Study. Journal of the Japan Epilepsy Society. 2(2). 108–114. 1 indexed citations
19.
Ohtsuka, Yoko, et al.. (1983). A Peculiar Type of Non-convulsive Status Epilepticus in Cbildllood: A Clinical and Electroencephalogmphic Study. Journal of the Japan Epilepsy Society. 1(2). 107–115. 3 indexed citations
20.
Ohtahara, Shunsuke, et al.. (1983). Induced Microseizures-A CIinical and Electroencephalographic Study. Journal of the Japan Epilepsy Society. 1(1). 51–60. 10 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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