Hollis C. Karoly

1.3k total citations
55 papers, 800 citations indexed

About

Hollis C. Karoly is a scholar working on Pharmacology, Epidemiology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Hollis C. Karoly has authored 55 papers receiving a total of 800 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Pharmacology, 20 papers in Epidemiology and 13 papers in Cellular and Molecular Neuroscience. Recurrent topics in Hollis C. Karoly's work include Cannabis and Cannabinoid Research (26 papers), Substance Abuse Treatment and Outcomes (20 papers) and Neurotransmitter Receptor Influence on Behavior (12 papers). Hollis C. Karoly is often cited by papers focused on Cannabis and Cannabinoid Research (26 papers), Substance Abuse Treatment and Outcomes (20 papers) and Neurotransmitter Receptor Influence on Behavior (12 papers). Hollis C. Karoly collaborates with scholars based in United States, Iran and Israel. Hollis C. Karoly's co-authors include Kent E. Hutchison, Angela D. Bryan, L. Cinnamon Bidwell, Sarah W. Feldstein Ewing, Jarrod M. Ellingson, Sophie L. YorkWilliams, Renée Martin‐Willett, Rachel E. Thayer, Nicole Harlaar and Barbara J. Weiland and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Hollis C. Karoly

52 papers receiving 784 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hollis C. Karoly United States 19 389 206 149 148 130 55 800
Claudia B. Padula United States 17 307 0.8× 228 1.1× 212 1.4× 130 0.9× 293 2.3× 42 1.0k
Stephanie Collins Reed United States 15 286 0.7× 117 0.6× 263 1.8× 111 0.8× 104 0.8× 24 701
Lindsay R. Meredith United States 13 133 0.3× 291 1.4× 196 1.3× 141 1.0× 124 1.0× 40 846
Rachel A. Rabin Canada 14 381 1.0× 125 0.6× 125 0.8× 111 0.8× 136 1.0× 40 756
Susan J. Boyd United States 15 400 1.0× 222 1.1× 343 2.3× 154 1.0× 135 1.0× 21 968
Norma Castro United States 14 222 0.6× 183 0.9× 173 1.2× 169 1.1× 236 1.8× 20 760
Rebecca Crean United States 13 581 1.5× 170 0.8× 412 2.8× 198 1.3× 225 1.7× 17 1.1k
Wilfrid N. Raby United States 19 252 0.6× 220 1.1× 363 2.4× 104 0.7× 125 1.0× 29 898
Rachel Bar‐Hamburger Israel 15 361 0.9× 261 1.3× 166 1.1× 138 0.9× 68 0.5× 31 1.0k
Emily E. Hartwell United States 19 176 0.5× 448 2.2× 223 1.5× 200 1.4× 137 1.1× 50 1.0k

Countries citing papers authored by Hollis C. Karoly

Since Specialization
Citations

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

Fields of papers citing papers by Hollis C. Karoly

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hollis C. Karoly. 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 Hollis C. Karoly. The network helps show where Hollis C. Karoly may publish in the future.

Co-authorship network of co-authors of Hollis C. Karoly

This figure shows the co-authorship network connecting the top 25 collaborators of Hollis C. Karoly. A scholar is included among the top collaborators of Hollis C. Karoly 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 Hollis C. Karoly. Hollis C. Karoly 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.
Gowin, Joshua L., Jarrod M. Ellingson, Hollis C. Karoly, et al.. (2025). Brain Function Outcomes of Recent and Lifetime Cannabis Use. JAMA Network Open. 8(1). e2457069–e2457069. 5 indexed citations
2.
Smith, Kirsten E., et al.. (2025). Kratom use among ethnobotanical tea bar patrons in Colorado: Subjective drug effects, adverse reactions, and perceived benefits of use. Drug and Alcohol Dependence Reports. 16. 100361–100361.
3.
Karoly, Hollis C., et al.. (2024). Protective Behavioral Strategies for Psychedelic Use: A Mini Review of the Evidence. PubMed. 2(4). 234–242. 2 indexed citations
4.
Karoly, Hollis C., et al.. (2024). Alcohol and brain structure across the lifespan: A systematic review of large‐scale neuroimaging studies. Addiction Biology. 29(9). e13439–e13439. 3 indexed citations
5.
6.
Skrzynski, Carillon J., et al.. (2023). Comparing the efficacy of mindfulness-based relapse prevention versus relapse prevention for alcohol use disorder: A randomized control trial. Journal of Studies on Alcohol and Drugs. 84(4). 560–569. 3 indexed citations
7.
Martin‐Willett, Renée, et al.. (2023). Baseline affective symptomatology moderates acute subjective effects of high potency THC and CBD cannabis concentrates.. Experimental and Clinical Psychopharmacology. 31(6). 1039–1049. 2 indexed citations
8.
Ross, J. Megan, Hollis C. Karoly, Stephanie Zellers, et al.. (2023). Evaluating substance use outcomes of recreational cannabis legalization using a unique co-twin control design. The American Journal of Drug and Alcohol Abuse. 49(5). 630–639. 2 indexed citations
9.
Karoly, Hollis C., et al.. (2023). Consuming oral cannabidiol prior to a standard alcohol dose has minimal effect on breath alcohol level and subjective effects of alcohol. Psychopharmacology. 240(5). 1119–1129. 5 indexed citations
10.
Karoly, Hollis C., et al.. (2022). Protocol for a mobile laboratory study of co-administration of cannabis concentrates with a standard alcohol dose in humans. PLoS ONE. 17(11). e0277123–e0277123. 4 indexed citations
11.
Karoly, Hollis C., Jarrod M. Ellingson, Jost Klawitter, et al.. (2021). Effects of cannabidiol in cannabis flower: Implications for harm reduction. Addiction Biology. 27(1). e13092–e13092. 29 indexed citations
12.
Karoly, Hollis C., et al.. (2021). Investigating Associations Between Inflammatory Biomarkers, Gray Matter, Neurofilament Light and Cognitive Performance in Healthy Older Adults. Frontiers in Aging Neuroscience. 13. 719553–719553. 10 indexed citations
13.
Bidwell, L. Cinnamon, et al.. (2021). A naturalistic study of orally administered vs. inhaled legal market cannabis: cannabinoids exposure, intoxication, and impairment. Psychopharmacology. 239(2). 385–397. 20 indexed citations
14.
Karoly, Hollis C., et al.. (2021). THC and CBD effects on alcohol use among alcohol and cannabis co-users.. Psychology of Addictive Behaviors. 35(6). 749–759. 18 indexed citations
15.
Karoly, Hollis C., et al.. (2021). Effects of cannabis use on alcohol consumption in a sample of treatment‐engaged heavy drinkers in Colorado. Addiction. 116(9). 2529–2537. 12 indexed citations
16.
Karoly, Hollis C., Michael A. Milburn, Ashley Brooks‐Russell, et al.. (2020). Effects of High-Potency Cannabis on Psychomotor Performance in Frequent Cannabis Users. Cannabis and Cannabinoid Research. 7(1). 107–115. 24 indexed citations
17.
18.
Karoly, Hollis C., Joseph P. Schacht, Lindsay R. Meredith, et al.. (2018). Investigating a novel fMRI cannabis cue reactivity task in youth. Addictive Behaviors. 89. 20–28. 36 indexed citations
19.
Bidwell, L. Cinnamon, Hollis C. Karoly, Rachel E. Thayer, et al.. (2018). DRD2promoter methylation and measures of alcohol reward: functional activation of reward circuits and clinical severity. Addiction Biology. 24(3). 539–548. 21 indexed citations
20.
Karoly, Hollis C., Angela D. Bryan, Barbara J. Weiland, et al.. (2015). Does incentive-elicited nucleus accumbens activation differ by substance of abuse? An examination with adolescents. Developmental Cognitive Neuroscience. 16. 5–15. 48 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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