Gregory L. Hanna

13.0k total citations · 1 hit paper
105 papers, 4.9k citations indexed

About

Gregory L. Hanna is a scholar working on Clinical Psychology, Cognitive Neuroscience and Psychiatry and Mental health. According to data from OpenAlex, Gregory L. Hanna has authored 105 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 85 papers in Clinical Psychology, 54 papers in Cognitive Neuroscience and 28 papers in Psychiatry and Mental health. Recurrent topics in Gregory L. Hanna's work include Obsessive-Compulsive Spectrum Disorders (68 papers), Autism Spectrum Disorder Research (36 papers) and Child and Adolescent Psychosocial and Emotional Development (24 papers). Gregory L. Hanna is often cited by papers focused on Obsessive-Compulsive Spectrum Disorders (68 papers), Autism Spectrum Disorder Research (36 papers) and Child and Adolescent Psychosocial and Emotional Development (24 papers). Gregory L. Hanna collaborates with scholars based in United States, Canada and Australia. Gregory L. Hanna's co-authors include Eric Hollander, H. Blair Simpson, Gerald Nestadt, Joseph A. Himle, Kate D. Fitzgerald, Edwin H. Cook, Daniel Fischer, Paul Arnold, Dennis P. Cantwell and David R. Rosenberg and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and American Journal of Psychiatry.

In The Last Decade

Gregory L. Hanna

103 papers receiving 4.7k 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.

Practice Guideline for the Treatment of Patients With Obsessive-Compulsive Disorder

2008 788 citations Gregory L. Hanna et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gregory L. Hanna United States	38	3.3k	2.3k	1.2k	1.1k	921	105	4.9k
Margaret A. Richter Canada	35	3.0k 0.9×	1.5k 0.7×	715 0.6×	865 0.8×	938 1.0×	93	4.5k
Odile A. van den Heuvel Netherlands	46	3.9k 1.2×	4.0k 1.7×	1.4k 1.2×	2.3k 2.1×	800 0.9×	203	8.0k
Sanjaya Saxena United States	38	3.9k 1.2×	2.9k 1.2×	1.1k 0.9×	1.5k 1.4×	1.0k 1.1×	59	6.4k
Guido Frank United States	56	5.5k 1.6×	2.0k 0.8×	1.4k 1.2×	1.1k 1.0×	695 0.8×	152	8.0k
Kevin J. Quinn United States	9	2.0k 0.6×	2.1k 0.9×	1.4k 1.2×	2.0k 1.9×	350 0.4×	18	5.3k
Rudolf Hoehn‐Saric United States	41	4.0k 1.2×	2.0k 0.9×	1.1k 1.0×	2.3k 2.2×	624 0.7×	117	6.6k
Pino Alonso Spain	41	4.3k 1.3×	2.5k 1.1×	700 0.6×	1.6k 1.5×	517 0.6×	120	5.4k
Mark W. Gilbertson United States	21	2.1k 0.6×	1.5k 0.6×	572 0.5×	466 0.4×	561 0.6×	42	4.5k
Antonia S. New United States	51	5.4k 1.6×	1.5k 0.6×	3.1k 2.7×	1.2k 1.1×	868 0.9×	145	7.9k
Leonardo F. Fontenelle Brazil	43	5.0k 1.5×	2.0k 0.8×	1.1k 1.0×	1.7k 1.6×	410 0.4×	307	6.5k

Countries citing papers authored by Gregory L. Hanna

Since Specialization

Citations

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

Fields of papers citing papers by Gregory L. Hanna

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregory L. Hanna. 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 Gregory L. Hanna. The network helps show where Gregory L. Hanna may publish in the future.

Co-authorship network of co-authors of Gregory L. Hanna

This figure shows the co-authorship network connecting the top 25 collaborators of Gregory L. Hanna. A scholar is included among the top collaborators of Gregory L. Hanna 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 Gregory L. Hanna. Gregory L. Hanna is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hanna, Gregory L., et al.. (2024). Altered Error Monitoring and Decreased Flanker Task Accuracy in Pediatric Obsessive–Compulsive Disorder. Child Psychiatry & Human Development. 2 indexed citations

Liu, Yanni, Gregory L. Hanna, Emily L. Bilek, et al.. (2023). Error‐related brain activity associated with obsessive–compulsive symptoms in youth. Brain and Behavior. 13(4). e2941–e2941. 1 indexed citations

Suzuki, Takakuni, Pan Gu, Tyler Grove, et al.. (2022). Abnormally Enhanced Midfrontal Theta Activity During Response Monitoring in Youths With Obsessive-Compulsive Disorder. Biological Psychiatry. 93(11). 1031–1040. 9 indexed citations

Chowdury, Asadur, et al.. (2020). Evoking network profiles of the dorsal anterior cingulate in youth with Obsessive-Compulsive Disorder during motor control and working memory. Journal of Psychiatric Research. 132. 72–83. 7 indexed citations

Zai, Gwyneth, Paul Arnold, Margaret A. Richter, et al.. (2020). An association of Myelin Oligodendrocyte Glycoprotein (MOG) gene variants with white matter volume in pediatric obsessive-compulsive disorder. Psychiatry Research Neuroimaging. 307. 111231–111231. 5 indexed citations

Hanna, Gregory L., et al.. (2018). Error-related brain activity in adolescents with obsessive-compulsive disorder and major depressive disorder. Depression and Anxiety. 35(8). 752–760. 19 indexed citations

Bunford, Nóra, Autumn Kujawa, Kate D. Fitzgerald, et al.. (2016). Neural Reactivity to Angry Faces Predicts Treatment Response in Pediatric Anxiety. Journal of Abnormal Child Psychology. 45(2). 385–395. 36 indexed citations

Liu, Yanni, Gregory L. Hanna, Melisa Carrasco, William J. Gehring, & Kate D. Fitzgerald. (2013). Altered relationship between electrophysiological response to errors and gray matter volumes in an extended network for error‐processing in pediatric obsessive‐compulsive disorder. Human Brain Mapping. 35(4). 1143–1153. 21 indexed citations

Fitzgerald, Kate D., Robert C. Welsh, Emily Stern, et al.. (2011). Developmental Alterations of Frontal-Striatal-Thalamic Connectivity in Obsessive-Compulsive Disorder. Journal of the American Academy of Child & Adolescent Psychiatry. 50(9). 938–948.e3. 117 indexed citations

10.

Arnold, Paul, Frank P. MacMaster, Gregory L. Hanna, et al.. (2008). Glutamate System Genes Associated with Ventral Prefrontal and Thalamic Volume in Pediatric Obsessive-Compulsive Disorder. Brain Imaging and Behavior. 3(1). 64–76. 33 indexed citations

11.

Brune, Camille W., Soo‐Jeong Kim, Gregory L. Hanna, et al.. (2008). Family‐based association testing of OCD‐associated SNPs of SLC1A1 in an autism sample. Autism Research. 1(2). 108–113. 18 indexed citations

12.

Dickel, Diane E., Jeremy Veenstra‐VanderWeele, Xiaolin Wu, et al.. (2007). Association Studies of Serotonin System Candidate Genes in Early-onset Obsessive-Compulsive Disorder. Biological Psychiatry. 61(3). 322–329. 65 indexed citations

13.

Hanna, Gregory L., Jeremy Veenstra‐VanderWeele, Nancy J. Cox, et al.. (2007). Evidence for a Susceptibility Locus on Chromosome 10p15 in Early-Onset Obsessive-Compulsive Disorder. Biological Psychiatry. 62(8). 856–862. 48 indexed citations

14.

McCracken, James T. & Gregory L. Hanna. (2005). Elevated Thyroid Indices in Children and Adolescents with Obsessive-Compulsive Disorder: Effects of Clomipramine Treatment. Journal of Child and Adolescent Psychopharmacology. 15(4). 581–587. 9 indexed citations

15.

Hanna, Gregory L.. (2004). Preventing computer fraud means outwitting a horde of hackers, crackers, spoofers, and sniffers. Journal of Investment Compliance. 5(2). 133–137.

16.

Knox, Michele, Cheryl A. King, Gregory L. Hanna, Deirdre E. Logan, & Neera Ghaziuddin. (2000). Aggressive Behavior in Clinically Depressed Adolescents. Journal of the American Academy of Child & Adolescent Psychiatry. 39(5). 611–618. 83 indexed citations

17.

Hanna, Gregory L., Arthur Yuwiler, & Dennis P. Cantwell. (1993). Whole-Blood Serotonin during Clomipramine Treatment of Juvenile Obsessive—Compulsive Disorder. Journal of Child and Adolescent Psychopharmacology. 3(4). 223–229. 12 indexed citations

18.

Swanson, James M., Dennis P. Cantwell, Marc Lerner, Keith McBurnett, & Gregory L. Hanna. (1991). Effects of Stimulant Medication on Learning in Children with ADHD. Journal of Learning Disabilities. 24(4). 219–230. 93 indexed citations

19.

Shekim, Walid O., et al.. (1989). Nomifensine Maleate in Adult Attention Deficit Disorder. The Journal of Nervous and Mental Disease. 177(5). 296–299. 25 indexed citations

20.

Cantwell, Dennis P. & Gregory L. Hanna. (1989). The Hyperactive Child, Adolescent, and Adult: Attention Deficit Disorder Through the Lifespan. American Journal of Psychiatry. 146(6). 794–795. 1 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