Ryan M. Sullivan

1.4k total citations
33 papers, 804 citations indexed

About

Ryan M. Sullivan is a scholar working on Pharmacology, Pediatrics, Perinatology and Child Health and Epidemiology. According to data from OpenAlex, Ryan M. Sullivan has authored 33 papers receiving a total of 804 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Pharmacology, 6 papers in Pediatrics, Perinatology and Child Health and 6 papers in Epidemiology. Recurrent topics in Ryan M. Sullivan's work include Cannabis and Cannabinoid Research (7 papers), Impact of Technology on Adolescents (5 papers) and Prenatal Substance Exposure Effects (5 papers). Ryan M. Sullivan is often cited by papers focused on Cannabis and Cannabinoid Research (7 papers), Impact of Technology on Adolescents (5 papers) and Prenatal Substance Exposure Effects (5 papers). Ryan M. Sullivan collaborates with scholars based in United States, Nepal and United Kingdom. Ryan M. Sullivan's co-authors include Adrienne G. Randolph, Anna A. Agan, Shannon Keisling, Jill M. Ferdinands, Kate Madden, Krista M. Lisdahl, Natasha E. Wade, Henry A. Feldman, Angela Panoskaltsis‐Mortari and Alexander L. Wallace and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and PEDIATRICS.

In The Last Decade

Ryan M. Sullivan

31 papers receiving 771 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryan M. Sullivan United States	12	337	117	98	95	88	33	804
Irênio Gomes Brazil	22	172 0.5×	38 0.3×	48 0.5×	27 0.3×	16 0.2×	105	1.5k
Kürşat Bora Çarman Türkiye	13	101 0.3×	25 0.2×	71 0.7×	35 0.4×	18 0.2×	84	597
David A. Ludwig United States	21	214 0.6×	20 0.2×	64 0.7×	59 0.6×	11 0.1×	72	1.3k
John H. Turco United States	11	503 1.5×	35 0.3×	32 0.3×	90 0.9×	10 0.1×	18	774
María José Castro Spain	21	79 0.2×	25 0.2×	17 0.2×	152 1.6×	123 1.4×	113	1.4k
Subhal Dixit India	8	64 0.2×	19 0.2×	77 0.8×	111 1.2×	18 0.2×	23	682
Deniz Sığırlı Türkiye	15	125 0.4×	17 0.1×	35 0.4×	43 0.5×	24 0.3×	78	820
Nishant Jaiswal India	16	154 0.5×	17 0.1×	119 1.2×	85 0.9×	14 0.2×	49	699
Mark Kaddumukasa Uganda	20	181 0.5×	19 0.2×	143 1.5×	33 0.3×	17 0.2×	93	1.1k
Gary Williams Australia	18	242 0.7×	62 0.5×	124 1.3×	263 2.8×	35 0.4×	69	968

Countries citing papers authored by Ryan M. Sullivan

Since Specialization

Citations

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

Fields of papers citing papers by Ryan M. Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryan M. Sullivan

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

Sullivan, Ryan M., Gabriel P. Ovsiew, Matthew S. Phillips, et al.. (2025). Investigating the Effect of Comorbid Internalizing Psychopathology on Performance Invalidity Rates in Neuropsychological Evaluations of Attention-Deficit/Hyperactivity Disorder. Psychological Injury and Law. 18(2). 108–114. 1 indexed citations

Sullivan, Ryan M., Alexander L. Wallace, April C. May, et al.. (2025). Early nicotine initiation and white matter integrity: Associations from late childhood to mid-adolescence. Drug and Alcohol Dependence. 277. 112954–112954.

Wade, Natasha E., Tam T. Nguyen‐Louie, Alexander L. Wallace, Ryan M. Sullivan, & Susan F. Tapert. (2024). Commercial Cannabidiol for Community-Based Young Adolescents: Predicting Medicinal Use. Cannabis and Cannabinoid Research. 10(2). e353–e361. 1 indexed citations

Linkersdörfer, Janosch, Ryan M. Sullivan, Kevin Cummins, et al.. (2024). Passively sensing smartphone use in teens with rates of use by sex and across operating systems. Scientific Reports. 14(1). 17982–17982. 5 indexed citations

Doran, Neal, Natasha E. Wade, Kelly E. Courtney, Ryan M. Sullivan, & Joanna Jacobus. (2024). Mobile phone ownership, social media use, and substance use at ages 11–13 in the ABCD study. Addictive Behaviors. 161. 108211–108211. 3 indexed citations

Sullivan, Ryan M., et al.. (2024). Childhood adversity is associated with reduced BOLD response in inhibitory control regions amongst preadolescents from the ABCD study. Developmental Cognitive Neuroscience. 67. 101378–101378. 5 indexed citations

Wallace, Alexander L., Marilyn A. Huestis, Ryan M. Sullivan, & Natasha E. Wade. (2024). Amygdala volume and depression symptoms in young adolescents who use cannabis. Behavioural Brain Research. 472. 115150–115150. 1 indexed citations

Wade, Natasha E., Alexander L. Wallace, Marilyn A. Huestis, et al.. (2023). Cannabis use and neurocognitive performance at 13–14 Years-Old: Optimizing assessment with hair toxicology in the Adolescent brain cognitive development (ABCD) study. Addictive Behaviors. 150. 107930–107930. 5 indexed citations

Wallace, Alexander L., Ryan M. Sullivan, & Natasha E. Wade. (2023). 28 Emotion Regulation and Functioning in Young Substance Use Initiators and Controls. Journal of the International Neuropsychological Society. 29(s1). 818–818. 1 indexed citations

10.

Wallace, Alexander L., et al.. (2022). Stand-Biased Desks Impact on Cognition in Elementary Students Using a Within-Classroom Crossover Design. International Journal of Environmental Research and Public Health. 19(9). 5684–5684.

11.

Sullivan, Ryan M., et al.. (2022). Examining Inhibitory Affective Processing Within the Rostral Anterior Cingulate Cortex Among Abstinent Cannabis-Using Adolescents and Young Adults. Frontiers in Psychiatry. 13. 851118–851118. 6 indexed citations

12.

Sullivan, Ryan M., Natasha E. Wade, Alexander L. Wallace, et al.. (2022). Substance use patterns in 9 to 13-year-olds: Longitudinal findings from the Adolescent Brain Cognitive Development (ABCD) study. SHILAP Revista de lepidopterología. 5. 100120–100120. 29 indexed citations

13.

Sullivan, Ryan M., Alexander L. Wallace, Natasha E. Wade, Ann M. Swartz, & Krista M. Lisdahl. (2021). Cannabis Use and Brain Volume in Adolescent and Young Adult Cannabis Users: Effects Moderated by Sex and Aerobic Fitness. Journal of the International Neuropsychological Society. 27(6). 607–620. 2 indexed citations

14.

Wade, Natasha E., Ryan M. Sullivan, Rachel L. Tomko, et al.. (2021). Passive Sensing of Preteens’ Smartphone Use: An Adolescent Brain Cognitive Development (ABCD) Cohort Substudy. JMIR Mental Health. 8(10). e29426–e29426. 38 indexed citations

15.

Sullivan, Ryan M., Bridgette Peteet, Susan F. Tapert, et al.. (2021). Longitudinal Impact of Childhood Adversity on Early Adolescent Mental Health During the COVID-19 Pandemic in the ABCD Study Cohort: Does Race or Ethnicity Moderate Findings?. Biological Psychiatry Global Open Science. 1(4). 324–335. 46 indexed citations

16.

Sullivan, Ryan M., et al.. (2021). Assessment of Withdrawal, Mood, and Sleep Inventories After Monitored 3-Week Abstinence in Cannabis-Using Adolescents and Young Adults. Cannabis and Cannabinoid Research. 7(5). 690–699. 8 indexed citations

17.

Sullivan, Ryan M., Greg Perlman, & Scott J. Moeller. (2018). Meta‐analysis of aberrant post‐error slowing in substance use disorder: implications for behavioral adaptation and self‐control. European Journal of Neuroscience. 50(3). 2467–2476. 7 indexed citations

18.

Madden, Kate, Henry A. Feldman, Rene F. Chun, et al.. (2015). Critically Ill Children Have Low Vitamin D–Binding Protein, Influencing Bioavailability of Vitamin D. Annals of the American Thoracic Society. 12(11). 1654–1661. 34 indexed citations

19.

Ferdinands, Jill M., Lauren E.W. Olsho, Anna A. Agan, et al.. (2014). Effectiveness of Influenza Vaccine Against Life-threatening RT-PCR-confirmed Influenza Illness in US Children, 2010–2012. The Journal of Infectious Diseases. 210(5). 674–683. 92 indexed citations

20.

Randolph, Adrienne G., Frances L. Vaughn, Ryan M. Sullivan, et al.. (2011). Critically Ill Children During the 2009–2010 Influenza Pandemic in the United States. PEDIATRICS. 128(6). e1450–e1458. 169 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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