Helenna Nakama

829 total citations
13 papers, 622 citations indexed

About

Helenna Nakama is a scholar working on Cellular and Molecular Neuroscience, Epidemiology and Virology. According to data from OpenAlex, Helenna Nakama has authored 13 papers receiving a total of 622 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Cellular and Molecular Neuroscience, 5 papers in Epidemiology and 4 papers in Virology. Recurrent topics in Helenna Nakama's work include Neurotransmitter Receptor Influence on Behavior (6 papers), HIV Research and Treatment (4 papers) and Schizophrenia research and treatment (3 papers). Helenna Nakama is often cited by papers focused on Neurotransmitter Receptor Influence on Behavior (6 papers), HIV Research and Treatment (4 papers) and Schizophrenia research and treatment (3 papers). Helenna Nakama collaborates with scholars based in United States, Japan and Germany. Helenna Nakama's co-authors include Caroline S. Jiang, Thomas Ernst, Linda Chang, Linda Chang, Steven D. Buchthal, Renat Yakupov, Thomas Ernst, George Fein, Masayoshi Yamamoto and M. I. San Andrés and has published in prestigious journals such as Journal of Neuroscience, NeuroImage and Annals of Neurology.

In The Last Decade

Helenna Nakama

13 papers receiving 614 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helenna Nakama United States 10 230 153 130 120 103 13 622
Edwina Smith United States 6 90 0.4× 330 2.2× 83 0.6× 52 0.4× 59 0.6× 9 593
Mollie A. Monnig United States 15 67 0.3× 152 1.0× 186 1.4× 50 0.4× 74 0.7× 36 664
Jacob D. Jones United States 19 118 0.5× 75 0.5× 146 1.1× 70 0.6× 65 0.6× 45 760
Kaitlin Blackstone United States 18 471 2.0× 158 1.0× 126 1.0× 285 2.4× 409 4.0× 24 979
Jesus B. Fernandez United States 12 133 0.6× 63 0.4× 70 0.5× 65 0.5× 123 1.2× 22 667
Rowan Saloner United States 15 214 0.9× 34 0.2× 187 1.4× 157 1.3× 156 1.5× 59 725
Rachel Meyer United States 9 63 0.3× 314 2.1× 138 1.1× 24 0.2× 44 0.4× 13 791
Jeff Breu United States 13 94 0.4× 54 0.4× 42 0.3× 155 1.3× 55 0.5× 17 786
Jean-Marie Annoni Switzerland 11 454 2.0× 27 0.2× 190 1.5× 278 2.3× 321 3.1× 11 861
Zhi Zhou China 15 45 0.2× 67 0.4× 105 0.8× 55 0.5× 169 1.6× 47 679

Countries citing papers authored by Helenna Nakama

Since Specialization
Citations

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

Fields of papers citing papers by Helenna Nakama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helenna Nakama

This figure shows the co-authorship network connecting the top 25 collaborators of Helenna Nakama. A scholar is included among the top collaborators of Helenna Nakama 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 Helenna Nakama. Helenna Nakama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

13 of 13 papers shown
1.
2.
Ernst, Thomas, et al.. (2016). Brain Microstructure and Impulsivity Differ between Current and Past Methamphetamine Users. Journal of Neuroimmune Pharmacology. 11(3). 531–541. 24 indexed citations
3.
Luxton, David D., et al.. (2014). Caring letters for suicide prevention: Implementation of a multi-site randomized clinical trial in the U.S. military and veteran affairs healthcare systems. Contemporary Clinical Trials. 37(2). 252–260. 29 indexed citations
4.
Nakama, Helenna, et al.. (2013). Gender differences in reasons for methamphetamine use in an ethnically diverse population in Hawaii. Journal of Substance Use. 20(2). 93–96. 1 indexed citations
5.
Nakama, Helenna, et al.. (2013). Case Report of a 24-Year-Old Man With Resolution of Treatment-Resistant Major Depressive Disorder and Comorbid PTSD Using rTMS. Journal of Ect. Publish Ahead of Print. 3 indexed citations
6.
King, George, et al.. (2011). Altered Brain Activation During Visuomotor Integration in Chronic Active Cannabis Users: Relationship to Cortisol Levels. Journal of Neuroscience. 31(49). 17923–17931. 71 indexed citations
7.
Chang, L., M. I. San Andrés, Caroline S. Jiang, et al.. (2011). Impact of apolipoprotein E ε4 and HIV on cognition and brain atrophy: Antagonistic pleiotropy and premature brain aging. NeuroImage. 58(4). 1017–1027. 86 indexed citations
8.
Nakama, Helenna, et al.. (2011). Methamphetamine users show greater than normal age‐related cortical gray matter loss. Addiction. 106(8). 1474–1483. 98 indexed citations
9.
Ernst, Thomas, Caroline S. Jiang, Helenna Nakama, Steven D. Buchthal, & Linda Chang. (2010). Lower brain glutamate is associated with cognitive deficits in HIV patients: A new mechanism for HIV‐associated neurocognitive disorder. Journal of Magnetic Resonance Imaging. 32(5). 1045–1053. 99 indexed citations
10.
Ernst, Thomas, Renat Yakupov, Helenna Nakama, et al.. (2009). Declined neural efficiency in cognitively stable human immunodeficiency virus patients. Annals of Neurology. 65(3). 316–325. 78 indexed citations
11.
Nakama, Helenna, Linda Chang, Christine Cloak, et al.. (2008). Association between Psychiatric Symptoms and Craving in Methamphetamine Users. American Journal on Addictions. 17(5). 441–446. 54 indexed citations
12.
Chang, L., Renat Yakupov, Helenna Nakama, B. T. Stokes, & Thomas Ernst. (2007). Antiretroviral Treatment is Associated with Increased Attentional Load-Dependent Brain Activation in HIV Patients. Journal of Neuroimmune Pharmacology. 3(2). 95–104. 50 indexed citations
13.
Yamamoto, Masayoshi & Helenna Nakama. (2000). Cost-effectiveness analysis of immunochemical occult blood screening for colorectal cancer among three fecal sampling methods.. PubMed. 47(32). 396–9. 27 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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