Jack E. James

4.7k total citations
121 papers, 3.3k citations indexed

About

Jack E. James is a scholar working on Clinical Psychology, Pharmacology and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Jack E. James has authored 121 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Clinical Psychology, 43 papers in Pharmacology and 20 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Jack E. James's work include Coffee research and impacts (42 papers), Eating Disorders and Behaviors (21 papers) and Heart Rate Variability and Autonomic Control (17 papers). Jack E. James is often cited by papers focused on Coffee research and impacts (42 papers), Eating Disorders and Behaviors (21 papers) and Heart Rate Variability and Autonomic Control (17 papers). Jack E. James collaborates with scholars based in Australia, Ireland and Iceland. Jack E. James's co-authors include Madeleine Gregg, Einar Thorsteinsson, Álfgeir L. Kristjánsson, Inga Dóra Sigfúsdóttir, Peter J. Rogers, Siobhán Howard, Brian M. Hughes, Thomas A. Matyas, Matthew R. Sanders and Geraldine Leader and has published in prestigious journals such as The Lancet, PLoS ONE and Behaviour Research and Therapy.

In The Last Decade

Jack E. James

119 papers receiving 3.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Jack E. James Australia 32 1.3k 1.0k 560 520 469 121 3.3k
Roland Mergl Germany 39 1.5k 1.1× 582 0.6× 268 0.5× 681 1.3× 884 1.9× 147 4.6k
Andrea C. King United States 44 729 0.6× 460 0.4× 603 1.1× 675 1.3× 751 1.6× 156 6.1k
Ned L. Cooney United States 41 1.6k 1.2× 355 0.3× 343 0.6× 1.2k 2.3× 622 1.3× 77 5.4k
James P. McCullough United States 27 1.9k 1.4× 1.3k 1.2× 420 0.8× 1.4k 2.7× 320 0.7× 104 4.2k
Diana Koszycki Canada 30 1.0k 0.8× 237 0.2× 293 0.5× 777 1.5× 200 0.4× 86 3.1k
Linda Booij Canada 39 1.2k 0.9× 331 0.3× 327 0.6× 751 1.4× 753 1.6× 155 4.0k
Gil Zalsman Israel 36 3.3k 2.5× 567 0.5× 390 0.7× 566 1.1× 595 1.3× 212 5.7k
Stephan Claes Belgium 42 1.6k 1.2× 530 0.5× 507 0.9× 863 1.7× 726 1.5× 196 7.2k
Sara Jo Nixon United States 42 1.7k 1.3× 254 0.2× 338 0.6× 786 1.5× 1.5k 3.2× 166 5.6k
Christine Kuehner Germany 29 1.8k 1.4× 288 0.3× 609 1.1× 1.4k 2.7× 818 1.7× 76 4.5k

Countries citing papers authored by Jack E. James

Since Specialization
Citations

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

Fields of papers citing papers by Jack E. James

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jack E. James. 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 Jack E. James. The network helps show where Jack E. James may publish in the future.

Co-authorship network of co-authors of Jack E. James

This figure shows the co-authorship network connecting the top 25 collaborators of Jack E. James. A scholar is included among the top collaborators of Jack E. James 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 Jack E. James. Jack E. James 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.
Kogan, Steven M., Christa L. Lilly, Jack E. James, & Álfgeir L. Kristjánsson. (2025). Caffeine, Daytime Sleepiness, and Conduct Problems Among Early Adolescents: A Longitudinal Analysis. Journal of Adolescent Health. 76(5). 807–812.
2.
Kristjánsson, Álfgeir L., Megan L. Smith, Michael J. Mann, et al.. (2022). Risk and Resilience Pathways, Community Adversity, Decision-making, and Alcohol Use Among Appalachian Adolescents: Protocol for the Longitudinal Young Mountaineer Health Study Cohort. JMIR Research Protocols. 11(8). e40451–e40451. 5 indexed citations
3.
James, Jack E.. (2020). Maternal caffeine consumption and pregnancy outcomes: a narrative review with implications for advice to mothers and mothers-to-be. BMJ evidence-based medicine. 26(3). 114–115. 51 indexed citations
4.
James, Jack E.. (2018). Can public financing of the private sector defeat antimicrobial resistance?. Journal of Public Health. 41(2). 422–426. 5 indexed citations
5.
6.
James, Jack E., et al.. (2018). Adolescent habitual caffeine consumption and hemodynamic reactivity during rest, psychosocial stress, and recovery. Journal of Psychosomatic Research. 110. 16–23. 7 indexed citations
7.
8.
Howard, Siobhán, et al.. (2017). Perceived social support predicts lower cardiovascular reactivity to stress in older adults. Biological Psychology. 125. 70–75. 29 indexed citations
9.
James, Jack E.. (2014). Caffeine and Cognitive Performance: In Search of Balance in Scientific Opinion and Debate. 4(4). 107–108. 1 indexed citations
10.
James, Jack E.. (2012). Coffee and Mortality: Urgent Need for Clinical Trials to Assess Putative Benefits and Harms. 2(2). 53–54. 3 indexed citations
11.
12.
James, Jack E., Madeleine Gregg, Thomas A. Matyas, Brian M. Hughes, & Siobhán Howard. (2012). Stress reactivity and the Hemodynamic Profile–Compensation Deficit (HP–CD) Model of blood pressure regulation. Biological Psychology. 90(2). 161–170. 28 indexed citations
13.
James, Jack E., et al.. (2011). Caffeine and Physical Performance. Griffith Research Online (Griffith University, Queensland, Australia). 1(3). 145–151. 3 indexed citations
14.
O’Brien, Mary Claire, Amelia M. Arria, Jonathan Howland, Jack E. James, & Cécile A. Marczinski. (2011). Caffeine, Alcohol, and Youth: A Toxic Mix. Europe PMC (PubMed Central). 1(1). 15–21. 11 indexed citations
15.
Kristjánsson, Álfgeir L., Jack E. James, John P. Allegrante, Inga Dóra Sigfúsdóttir, & Ásgeir R. Helgason. (2010). Adolescent substance use, parental monitoring, and leisure-time activities: 12-year outcomes of primary prevention in Iceland. Preventive Medicine. 51(2). 168–171. 98 indexed citations
16.
James, Jack E.. (2002). ‘Third‐party’ threats to research integrity in public–private partnerships. Addiction. 97(10). 1251–1255. 7 indexed citations
17.
Gregg, Madeleine, Jack E. James, Thomas A. Matyas, & Einar Thorsteinsson. (1999). Hemodynamic profile of stress-induced anticipation and recovery. International Journal of Psychophysiology. 34(2). 147–162. 82 indexed citations
18.
James, Jack E.. (1991). Caffeine and health. Academic Press eBooks. 153 indexed citations
19.
James, Jack E., et al.. (1990). Virtue rewarded: Reinforcement and punishment in an acute psychiatric admission ward. Journal of Behavior Therapy and Experimental Psychiatry. 21(4). 257–262. 3 indexed citations
20.
James, Jack E., et al.. (1988). Biochemical validation of self-reported caffeine consumption during caffeine fading. Journal of Behavioral Medicine. 11(1). 15–30. 32 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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