Atul Khullar

1.0k total citations
21 papers, 627 citations indexed

About

Atul Khullar is a scholar working on Pharmacology, Biological Psychiatry and Experimental and Cognitive Psychology. According to data from OpenAlex, Atul Khullar has authored 21 papers receiving a total of 627 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Pharmacology, 8 papers in Biological Psychiatry and 8 papers in Experimental and Cognitive Psychology. Recurrent topics in Atul Khullar's work include Treatment of Major Depression (13 papers), Tryptophan and brain disorders (8 papers) and Sleep and related disorders (5 papers). Atul Khullar is often cited by papers focused on Treatment of Major Depression (13 papers), Tryptophan and brain disorders (8 papers) and Sleep and related disorders (5 papers). Atul Khullar collaborates with scholars based in Canada, United States and Spain. Atul Khullar's co-authors include Roger S. McIntyre, Sidney H. Kennedy, Raymond W. Lam, Jennifer Swainson, Rejish K. Thomas, Serdar Dursun, Dmitriy Matveychuk, Glen B. Baker, Pratap Chokka and Martin A. Katzman and has published in prestigious journals such as SHILAP Revista de lepidopterología, Canadian Medical Association Journal and Sleep Medicine.

In The Last Decade

Atul Khullar

17 papers receiving 616 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Atul Khullar Canada 9 319 195 161 134 116 21 627
Lisa A. Batten Canada 10 407 1.3× 291 1.5× 123 0.8× 163 1.2× 114 1.0× 14 704
Sandhaya Norris Canada 8 386 1.2× 275 1.4× 122 0.8× 120 0.9× 97 0.8× 16 602
Taylor Hatchard Canada 13 479 1.5× 255 1.3× 143 0.9× 139 1.0× 118 1.0× 23 840
Paulo Shiroma United States 14 541 1.7× 369 1.9× 186 1.2× 189 1.4× 114 1.0× 27 803
Lejla Čolić Germany 14 176 0.6× 133 0.7× 90 0.6× 245 1.8× 113 1.0× 45 583
Benoît Rive France 17 491 1.5× 178 0.9× 249 1.5× 101 0.8× 243 2.1× 29 877
Shakila Meshkat Canada 14 277 0.9× 218 1.1× 102 0.6× 72 0.5× 113 1.0× 70 618
Margarita Shekotikhina Canada 13 230 0.7× 267 1.4× 131 0.8× 74 0.6× 178 1.5× 18 603
Ron Kakar Canada 9 268 0.8× 248 1.3× 166 1.0× 162 1.2× 300 2.6× 9 737

Countries citing papers authored by Atul Khullar

Since Specialization
Citations

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

Fields of papers citing papers by Atul Khullar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Atul Khullar

This figure shows the co-authorship network connecting the top 25 collaborators of Atul Khullar. A scholar is included among the top collaborators of Atul Khullar 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 Atul Khullar. Atul Khullar 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.
Almagor, Doron, et al.. (2025). Managing comorbid sleep issues in patients with attention-deficit/hyperactivity disorder. Canadian Medical Association Journal. 197(12). E323–E324.
2.
3.
Khullar, Atul, et al.. (2025). Ketamine for mental health - A naturalistic inventory of prescribing practices, safety, and adverse effects. PLOS mental health.. 2(4). e0000215–e0000215.
4.
5.
Yan, Raymond T., et al.. (2024). Patient-reported outcomes on sleep quality and circadian rhythm during treatment with intravenous ketamine for treatment-resistant depression. SHILAP Revista de lepidopterología. 14. 1957148576–1957148576. 4 indexed citations
6.
Katzman, Martin A., Jeffrey Habert, Atul Khullar, et al.. (2022). Early optimized pharmacological treatment in patients with depression and chronic pain. CNS Spectrums. 28(2). 145–156. 4 indexed citations
7.
Swainson, Jennifer, et al.. (2022). Intravenous ketamine for depression: A clinical discussion reconsidering best practices in acute hypertension management. Frontiers in Psychiatry. 13. 1017504–1017504. 7 indexed citations
8.
9.
Swainson, Jennifer, Larry J. Klassen, Pratap Chokka, et al.. (2022). Non-parenteral Ketamine for Depression: A Practical Discussion on Addiction Potential and Recommendations for Judicious Prescribing. CNS Drugs. 36(3). 239–251. 27 indexed citations
10.
Khullar, Atul, et al.. (2021). The drug liking and craving questionnaire (DLCQ) to evaluate addiction risk for ketamine and esketamine. SHILAP Revista de lepidopterología. 2(1). 100018–100018. 11 indexed citations
11.
12.
13.
Langlois, Catherine C., et al.. (2021). Down and High: Reflections Regarding Depression and Cannabis. Frontiers in Psychiatry. 12. 625158–625158. 25 indexed citations
14.
Matveychuk, Dmitriy, Rejish K. Thomas, Jennifer Swainson, et al.. (2020). Ketamine as an antidepressant: overview of its mechanisms of action and potential predictive biomarkers. SHILAP Revista de lepidopterología. 10. 3628482225–3628482225. 123 indexed citations
15.
Majumdar, Sharmila, et al.. (2019). Bilateral ptosis: An unusual presentation of mid brain tuberculoma. Medical Journal Armed Forces India. 77(1). 96–100. 2 indexed citations
16.
Khullar, Atul, et al.. (2019). Peripheral pulmonary embolism: A missed entity. SHILAP Revista de lepidopterología. 12(3). 278–278. 1 indexed citations
17.
Habert, Jeffrey, Martin A. Katzman, Roger S. McIntyre, et al.. (2016). Functional Recovery in Major Depressive Disorder. The Primary Care Companion For CNS Disorders. 18(5). 64 indexed citations
18.
Lam, Raymond W., Sidney H. Kennedy, Roger S. McIntyre, & Atul Khullar. (2014). Cognitive Dysfunction in Major Depressive Disorder: Effects on Psychosocial Functioning and Implications for Treatment. The Canadian Journal of Psychiatry. 59(12). 649–654. 311 indexed citations
19.
Khullar, Atul. (2012). The Role of Melatonin in the Circadian Rhythm Sleep-Wake Cycle. 8 indexed citations
20.
Khullar, Atul & Roger S. McIntyre. (2004). An approach to managing depression. Defining and measuring outcomes.. PubMed. 50. 1374–80. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Lisa A. Batten Breakdown of academic impact, for papers by Sandhaya Norris Breakdown of academic impact, for papers by Taylor Hatchard Breakdown of academic impact, for papers by Paulo Shiroma Breakdown of academic impact, for papers by Lejla Čolić Breakdown of academic impact, for papers by Benoît Rive Breakdown of academic impact, for papers by Shakila Meshkat Breakdown of academic impact, for papers by Margarita Shekotikhina Breakdown of academic impact, for papers by Ron Kakar
Rankless by CCL
2026