Mark R. Opp

8.3k total citations
122 papers, 6.2k citations indexed

About

Mark R. Opp is a scholar working on Cognitive Neuroscience, Endocrine and Autonomic Systems and Experimental and Cognitive Psychology. According to data from OpenAlex, Mark R. Opp has authored 122 papers receiving a total of 6.2k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Cognitive Neuroscience, 60 papers in Endocrine and Autonomic Systems and 43 papers in Experimental and Cognitive Psychology. Recurrent topics in Mark R. Opp's work include Sleep and Wakefulness Research (68 papers), Circadian rhythm and melatonin (45 papers) and Sleep and related disorders (43 papers). Mark R. Opp is often cited by papers focused on Sleep and Wakefulness Research (68 papers), Circadian rhythm and melatonin (45 papers) and Sleep and related disorders (43 papers). Mark R. Opp collaborates with scholars based in United States, Italy and Hungary. Mark R. Opp's co-authors include James M. Krueger, Luca Imeri, Michael R. Irwin, F. Obál, Fang‐Chia Chang, Linda A Toth, Levente Kapás, Jonathan D. Morrow, Eric M. Smith and Thomas K. Hughes and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and SHILAP Revista de lepidopterología.

In The Last Decade

Mark R. Opp

120 papers receiving 6.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Mark R. Opp United States 44 2.6k 2.4k 2.2k 1.0k 805 122 6.2k
Tanja Lange Germany 35 1.6k 0.6× 2.8k 1.2× 2.7k 1.2× 1.6k 1.6× 653 0.8× 68 7.2k
Thomas Pollmächer Germany 43 2.5k 1.0× 1.6k 0.7× 2.1k 1.0× 973 1.0× 1.1k 1.4× 181 6.8k
Jidong Fang United States 41 2.2k 0.8× 1.8k 0.8× 1.4k 0.6× 656 0.6× 369 0.5× 78 4.0k
Horst L. Fehm Germany 48 2.0k 0.8× 2.3k 1.0× 1.8k 0.8× 1.6k 1.6× 1.5k 1.9× 188 8.4k
Steven J. Henriksen United States 47 2.1k 0.8× 1.4k 0.6× 705 0.3× 1.1k 1.1× 602 0.7× 119 7.7k
Catherine M. Kotz United States 50 2.5k 1.0× 3.7k 1.6× 1.4k 0.6× 1.9k 1.9× 332 0.4× 121 7.8k
Alexander Yassouridis Germany 49 1.4k 0.5× 1.2k 0.5× 818 0.4× 1.6k 1.6× 2.2k 2.8× 170 8.8k
Gert J. Ter Horst Netherlands 45 1.2k 0.5× 2.0k 0.8× 463 0.2× 1.1k 1.0× 1.2k 1.5× 111 6.6k
Andrew J. Lawrence Australia 53 2.0k 0.8× 2.0k 0.8× 733 0.3× 1.2k 1.2× 827 1.0× 337 9.7k
James M. Krueger United States 70 8.1k 3.1× 7.2k 3.0× 5.2k 2.4× 2.3k 2.3× 1.2k 1.5× 293 15.6k

Countries citing papers authored by Mark R. Opp

Since Specialization
Citations

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

Fields of papers citing papers by Mark R. Opp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Mark R. Opp. 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 Mark R. Opp. The network helps show where Mark R. Opp may publish in the future.

Co-authorship network of co-authors of Mark R. Opp

This figure shows the co-authorship network connecting the top 25 collaborators of Mark R. Opp. A scholar is included among the top collaborators of Mark R. Opp 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 Mark R. Opp. Mark R. Opp 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.
Opp, Mark R., et al.. (2025). Microglial depletion and repopulation differentially modulate sleep and inflammation in a mouse model of traumatic brain injury. PubMed. 18(Suppl). 100115–100115. 1 indexed citations
2.
3.
Rowe, Rachel K., et al.. (2024). Acute sleep deprivation in mice generates protein pathology consistent with neurodegenerative diseases. Frontiers in Neuroscience. 18. 1436966–1436966. 4 indexed citations
4.
Opp, Mark R., et al.. (2018). Hypocretin Mediates Sleep and Wake Disturbances in a Mouse Model of Traumatic Brain Injury. Journal of Neurotrauma. 36(5). 802–814. 25 indexed citations
5.
Krueger, James M. & Mark R. Opp. (2016). Sleep and Microbes. International review of neurobiology. 131. 207–225. 71 indexed citations
6.
Page, Gayle G., Mark R. Opp, & Sharon Kozachik. (2016). Sex differences in sleep, anhedonia, and HPA axis activity in a rat model of chronic social defeat. Neurobiology of Stress. 3. 105–113. 25 indexed citations
7.
Irwin, Michael R. & Mark R. Opp. (2016). Sleep Health: Reciprocal Regulation of Sleep and Innate Immunity. Neuropsychopharmacology. 42(1). 129–155. 376 indexed citations
8.
Ho, Jacqueline M., R. Paulien Barf, & Mark R. Opp. (2016). Effects of sleep disruption and high fat intake on glucose metabolism in mice. Psychoneuroendocrinology. 68. 47–56. 13 indexed citations
9.
Greenwood, Benjamin N., Robert S. Thompson, Mark R. Opp, & Monika Fleshner. (2014). Repeated Exposure to Conditioned Fear Stress Increases Anxiety and Delays Sleep Recovery Following Exposure to an Acute Traumatic Stressor. Frontiers in Psychiatry. 5. 146–146. 25 indexed citations
10.
Ahmed, Samreen, He Meng, Tiecheng Liu, et al.. (2011). Ischemic stroke selectively inhibits REM sleep of rats. Experimental Neurology. 232(2). 168–175. 14 indexed citations
11.
Brambilla, Dario, Isabella Barajon, Susanna Bianchi, Mark R. Opp, & Luca Imeri. (2010). Interleukin-1 Inhibits Putative Cholinergic Neurons in Vitro and REM Sleep when Microinjected into the Rat Laterodorsal Tegmental Nucleus. SLEEP. 33(7). 919–929. 14 indexed citations
12.
Wada, M., Thomas L. Saunders, Jason D. Morrow, et al.. (2009). Two Pathways for Cyclooxygenase-2 Protein Degradation in Vivo. Journal of Biological Chemistry. 284(45). 30742–30753. 19 indexed citations
13.
Morrow, Jonathan D. & Mark R. Opp. (2004). Sleep–wake behavior and responses of interleukin-6-deficient mice to sleep deprivation. Brain Behavior and Immunity. 19(1). 28–39. 68 indexed citations
14.
Opp, Mark R.. (2003). Neural-immune interactions in the regulation of sleep. Frontiers in bioscience. 8(4). d768–779. 69 indexed citations
15.
Chang, Fang‐Chia & Mark R. Opp. (1999). Pituitary CRH Receptor Blockade Reduces Waking in the Rat. Physiology & Behavior. 67(5). 691–696. 23 indexed citations
16.
Opp, Mark R. & Linda A Toth. (1998). Somnogenic and pyrogenic effects of interleukin-1β and lipopolysaccharide in intact and vagotomized rats. Life Sciences. 62(10). 923–936. 79 indexed citations
17.
Opp, Mark R. & Linda A Toth. (1997). Circadian Modulation of Interleukin‐1‐Induced Fever in Intact and Vagotomized Ratsa. Annals of the New York Academy of Sciences. 813(1). 435–436. 11 indexed citations
18.
19.
Opp, Mark R., Levente Kapás, & Linda A Toth. (1992). Cytokine Involvement in the Regulation of Sleep. Experimental Biology and Medicine. 201(1). 16–27. 79 indexed citations
20.
Krueger, James M., Linda A Toth, Lars Johannsen, & Mark R. Opp. (1990). Infectious Disease and Sleep: Involvement of Neuroendocrine-Neuroimmune Mechanisms. International Journal of Neuroscience. 51(3-4). 359–362. 3 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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