Karen M. Johnston

6.7k total citations · 1 hit paper
22 papers, 1.9k citations indexed

About

Karen M. Johnston is a scholar working on Epidemiology, Neurology and Emergency Medicine. According to data from OpenAlex, Karen M. Johnston has authored 22 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Epidemiology, 8 papers in Neurology and 5 papers in Emergency Medicine. Recurrent topics in Karen M. Johnston's work include Traumatic Brain Injury Research (17 papers), Traumatic Brain Injury and Neurovascular Disturbances (8 papers) and Cardiac Arrest and Resuscitation (4 papers). Karen M. Johnston is often cited by papers focused on Traumatic Brain Injury Research (17 papers), Traumatic Brain Injury and Neurovascular Disturbances (8 papers) and Cardiac Arrest and Resuscitation (4 papers). Karen M. Johnston collaborates with scholars based in Canada, United States and Australia. Karen M. Johnston's co-authors include Mark R. Lovell, Grant L. Iverson, Michael W. Collins, Joseph C. Maroon, Kenneth Podell, John Norwig, Dustin Pardini, Jamie Pardini, Christine Provvidenza and Paul McCrory and has published in prestigious journals such as Brain Research, Medicine & Science in Sports & Exercise and The American Journal of Sports Medicine.

In The Last Decade

Karen M. Johnston

22 papers receiving 1.8k 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.

Measurement of Symptoms Following Sports-Related Concussion: Reliability and Normative Data for the Post-Concussion Scale

2006 539 citations Mark R. Lovell, Grant L. Iverson et al. Applied Neuropsychology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Karen M. Johnston Canada	16	1.7k	968	888	433	244	22	1.9k
Jamie Pardini United States	13	2.3k 1.3×	1.4k 1.4×	1.3k 1.5×	419 1.0×	201 0.8×	26	2.5k
Margot Putukian United States	15	1.5k 0.9×	842 0.9×	732 0.8×	407 0.9×	488 2.0×	21	1.9k
Kelly Sarmiento United States	20	1.1k 0.6×	723 0.7×	475 0.5×	507 1.2×	246 1.0×	81	1.6k
Juliet Haarbauer‐Krupa United States	22	1.4k 0.8×	1.1k 1.1×	632 0.7×	441 1.0×	117 0.5×	71	1.9k
Matthew Gammons United States	5	1.1k 0.7×	631 0.7×	563 0.6×	315 0.7×	260 1.1×	7	1.3k
Catherine Willmott Australia	17	1.4k 0.8×	873 0.9×	814 0.9×	165 0.4×	81 0.3×	48	1.7k
Tonya M. Parker United States	11	963 0.6×	418 0.4×	330 0.4×	297 0.7×	223 0.9×	15	1.2k
Mohammad N. Haider United States	19	1.3k 0.8×	808 0.8×	706 0.8×	238 0.5×	115 0.5×	85	1.5k
Alicia Sufrinko United States	21	1.0k 0.6×	428 0.4×	532 0.6×	318 0.7×	102 0.4×	30	1.2k
Jason R. Freeman United States	11	918 0.5×	555 0.6×	434 0.5×	167 0.4×	124 0.5×	16	1.1k

Countries citing papers authored by Karen M. Johnston

Since Specialization

Citations

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

Fields of papers citing papers by Karen M. Johnston

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karen M. Johnston. 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 Karen M. Johnston. The network helps show where Karen M. Johnston may publish in the future.

Co-authorship network of co-authors of Karen M. Johnston

This figure shows the co-authorship network connecting the top 25 collaborators of Karen M. Johnston. A scholar is included among the top collaborators of Karen M. Johnston 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 Karen M. Johnston. Karen M. Johnston 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

Makdissi, Michael, Kathryn Schneider, Nina Feddermann‐Demont, et al.. (2017). Approach to investigation and treatment of persistent symptoms following sport-related concussion: a systematic review. British Journal of Sports Medicine. 51(12). 958–968. 112 indexed citations

Provvidenza, Christine, Lars Engebretsen, Charles H. Tator, et al.. (2013). From consensus to action: knowledge transfer, education and influencing policy on sports concussion. British Journal of Sports Medicine. 47(5). 332–338. 82 indexed citations

Caron, Jeffrey G., Gordon A. Bloom, Karen M. Johnston, & Catherine M. Sabiston. (2013). National Hockey League players' experiences with career-ending concussions. British Journal of Sports Medicine. 47(5). e1.38–e1. 4 indexed citations

Davis, Gavin A, Grant L. Iverson, Kevin M. Guskiewicz, Alain Ptito, & Karen M. Johnston. (2009). Contributions of neuroimaging, balance testing, electrophysiology and blood markers to the assessment of sport-related concussion. British Journal of Sports Medicine. 43(Suppl 1). i36–i45. 73 indexed citations

Provvidenza, Christine & Karen M. Johnston. (2009). Knowledge transfer principles as applied to sport concussion education. British Journal of Sports Medicine. 43(Suppl 1). i68–i75. 93 indexed citations

Golan, Jeff D., Judith Marcoux, Eyal Golan, et al.. (2007). Traumatic Brain Injury in Intoxicated Patients. The Journal of Trauma: Injury, Infection, and Critical Care. 63(2). 365–369. 17 indexed citations

Johnston, Karen M., Louis De Beaumont, David Montgomery, et al.. (2007). Pilot case study of the therapeutic potential of hyperbaric oxygen therapy on chronic brain injury. Journal of the Neurological Sciences. 253(1-2). 94–105. 29 indexed citations

Lovell, Mark R., Grant L. Iverson, Michael W. Collins, et al.. (2006). Measurement of Symptoms Following Sports-Related Concussion: Reliability and Normative Data for the Post-Concussion Scale. Applied Neuropsychology. 13(3). 166–174. 539 indexed citations breakdown →

Kissick, James & Karen M. Johnston. (2005). Return to Play After Concussion. Clinical Journal of Sport Medicine. 15(6). 426–431. 58 indexed citations

10.

Solomon, Gary S., Karen M. Johnston, & Mark R. Lovell. (2005). The Heads-Up on Sport Concussion. Medical Entomology and Zoology. 2 indexed citations

11.

Bloom, Gordon A., et al.. (2004). Sport psychology and concussion: new impacts to explore. British Journal of Sports Medicine. 38(5). 519–521. 63 indexed citations

12.

Johnston, Karen M., Gordon A. Bloom, James Kissick, et al.. (2004). Current concepts in concussion rehabilitation. Current Sports Medicine Reports. 3(6). 316–323. 52 indexed citations

13.

Johnston, Karen M., Gordon A. Bloom, James Kissick, et al.. (2004). Current Concepts in Concussion Rehabilitation. Current Sports Medicine Reports. 3(6). 316–323. 39 indexed citations

14.

Lovell, Mark R., Michael W. Collins, Grant L. Iverson, Karen M. Johnston, & James P. Bradley. (2004). Grade 1 or “Ding” Concussions in High School Athletes. The American Journal of Sports Medicine. 32(1). 47–54. 227 indexed citations

15.

Collins, Michael W., Melvin Field, Mark R. Lovell, et al.. (2003). Relationship between Postconcussion Headache and Neuropsychological Test Performance in High School Athletes. The American Journal of Sports Medicine. 31(2). 168–173. 201 indexed citations

16.

Aubry, Mark, Robert C. Cantu, Jiří Dvořák, et al.. (2002). Summary and Agreement Statement of the 1st International Symposium on Concussion in Sport, Vienna 2001. Clinical Journal of Sport Medicine. 12(1). 6–11. 221 indexed citations

17.

Bloom, Gordon A., et al.. (2002). THE IMPACT OF SUPPORT GROUPS ON THE PSYCHOLOGICAL STATE OF ATHLETES EXPERIENCING CONCCUSSIONS. Medicine & Science in Sports & Exercise. 34(5). S99–S99. 13 indexed citations

18.

Johnston, Karen M., et al.. (1999). Temporal Dermoid Cyst with a Partial Dermal Sinus Tract. Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques. 26(4). 321–324. 6 indexed citations

19.

Johnston, Karen M., Scott T. Brady, Derek van der Kooy, & Joe A. Connolly. (1987). A unique tubulin antibody which disrupts particle movement in squid axoplasm. Cell Motility and the Cytoskeleton. 7(2). 110–115. 10 indexed citations

20.

Johnston, Karen M., Joe A. Connolly, & Derek van der Kooy. (1986). Inhibition of axonal transport ‘in vivo’ by a tubulin-specific antibody. Brain Research. 385(1). 38–45. 13 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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