Gemma Hammerton

3.4k total citations · 1 hit paper
64 papers, 1.9k citations indexed

About

Gemma Hammerton is a scholar working on Clinical Psychology, Health, Toxicology and Mutagenesis and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Gemma Hammerton has authored 64 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Clinical Psychology, 22 papers in Health, Toxicology and Mutagenesis and 19 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Gemma Hammerton's work include Child and Adolescent Psychosocial and Emotional Development (24 papers), Health, Environment, Cognitive Aging (22 papers) and Maternal Mental Health During Pregnancy and Postpartum (17 papers). Gemma Hammerton is often cited by papers focused on Child and Adolescent Psychosocial and Emotional Development (24 papers), Health, Environment, Cognitive Aging (22 papers) and Maternal Mental Health During Pregnancy and Postpartum (17 papers). Gemma Hammerton collaborates with scholars based in United Kingdom, Brazil and United States. Gemma Hammerton's co-authors include Jon Heron, Laura D Howe, George Davey Smith, Marcus R. Munafò, Rebecca C. Richmond, Amy E. Taylor, Neil M Davies, Eleanor Sanderson, Alice R Carter and Anita Thapar and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and American Journal of Psychiatry.

In The Last Decade

Gemma Hammerton

58 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.

Mendelian randomisation for mediation analysis: current methods and challenges for implementation

2021 587 citations Gemma Hammerton, Jon Heron et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Gemma Hammerton United Kingdom	19	617	336	299	267	227	64	1.9k
Jacquelyn L. Meyers United States	26	765 1.2×	296 0.9×	526 1.8×	234 0.9×	285 1.3×	75	3.1k
Robyn E. Wootton United Kingdom	21	277 0.4×	573 1.7×	202 0.7×	292 1.1×	240 1.1×	75	1.9k
Amy M. Shui United States	29	674 1.1×	210 0.6×	352 1.2×	111 0.4×	683 3.0×	140	3.0k
Oleguer Plana‐Ripoll Denmark	23	446 0.7×	119 0.4×	242 0.8×	262 1.0×	463 2.0×	98	1.9k
Grete H. Bratberg Norway	18	455 0.7×	151 0.4×	274 0.9×	458 1.7×	259 1.1×	30	2.2k
Changgui Kou China	23	274 0.4×	144 0.4×	204 0.7×	214 0.8×	129 0.6×	102	1.8k
Denise Stevens France	21	414 0.7×	110 0.3×	403 1.3×	208 0.8×	358 1.6×	53	2.1k
Marie‐Pierre F. Strippoli Switzerland	30	277 0.4×	223 0.7×	238 0.8×	390 1.5×	233 1.0×	109	2.8k
Suzanne C. O’Neill United States	24	354 0.6×	722 2.1×	92 0.3×	286 1.1×	102 0.4×	98	2.1k
Michael Lundberg Sweden	20	576 0.9×	318 0.9×	195 0.7×	214 0.8×	409 1.8×	43	2.0k

Countries citing papers authored by Gemma Hammerton

Since Specialization

Citations

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

Fields of papers citing papers by Gemma Hammerton

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gemma Hammerton

This figure shows the co-authorship network connecting the top 25 collaborators of Gemma Hammerton. A scholar is included among the top collaborators of Gemma Hammerton 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 Gemma Hammerton. Gemma Hammerton 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

Hammerton, Gemma, Jon Heron, Olga Eyre, et al.. (2025). Study Preregistration: Clinical and Cognitive Mediators Underlying Subsequent Depression in Individuals With Attention-Deficit/Hyperactivity Disorder: A Developmental Approach. Journal of the American Academy of Child & Adolescent Psychiatry. 64(11). 1329–1331.

Culpin, Iryna, Rebecca M. Pearson, Nicola Wright, et al.. (2025). Paternal postnatal depression and child development at age 7 years in a UK-birth cohort: the mediating roles of paternal parenting confidence, warmth, and conflict. PubMed. 4. 1650799–1650799. 1 indexed citations

Fairchild, Graeme, Gemma Hammerton, Andreas Bauer, et al.. (2025). Associations between childhood trauma and adolescent psychiatric disorders in Brazil: a longitudinal, population-based birth cohort study. The Lancet Global Health. 13(2). e309–e318. 1 indexed citations

Burrows, Kimberley, Jon Heron, Gemma Hammerton, Ana Gonçalves Soares, & Carol Joinson. (2025). Adverse childhood experiences and lower urinary tract symptoms in adolescence: the mediating effect of inflammation. International Journal of Epidemiology. 54(4). 1 indexed citations

Hammerton, Gemma, et al.. (2024). Modifiable protective factors for mental health resilience in the offspring of depressed parents: A high‐risk longitudinal cohort spanning adolescence and adulthood. SHILAP Revista de lepidopterología. 4(3). e12240–e12240. 2 indexed citations

Hidalgo, Andrea P. Cortés, Gemma Hammerton, Jon Heron, et al.. (2024). Childhood Adversity and Incident Psychotic Experiences in Early Adulthood: Cognitive and Psychopathological Mediators. Schizophrenia Bulletin. 50(4). 903–912. 2 indexed citations

Hilkens, Nina A., Gemma Hammerton, Nienke M. de Vries, et al.. (2024). Guide to Decomposition of Causal Effects Into Mediation, Interaction, and Direct Effects. Neurology. 103(1). e209547–e209547. 3 indexed citations

Hammerton, Gemma, et al.. (2023). The association of alcohol dependence and consumption during adolescence with depression in young adulthood, in England: a prospective cohort study. The Lancet Psychiatry. 10(7). 490–498. 15 indexed citations

Maruyama, Jéssica Mayumi, et al.. (2022). Mental health resilience in offspring of depressed parents: a systematic literature review protocol. Systematic Reviews. 11(1). 190–190. 1 indexed citations

10.

Soares, Ana Gonçalves, Laura D Howe, Jon Heron, et al.. (2021). How does childhood maltreatment influence cardiovascular disease? A sequential causal mediation analysis. International Journal of Epidemiology. 51(2). 555–566. 15 indexed citations

11.

Hammerton, Gemma & Marcus R. Munafò. (2021). Causal inference with observational data: the need for triangulation of evidence. Psychological Medicine. 51(4). 563–578. 132 indexed citations

12.

Sullivan, Sarah, Daphne Kounali, Hannah Jones, et al.. (2021). Precursors and correlates of transient and persistent longitudinal profiles of psychotic experiences from late childhood through early adulthood. The British Journal of Psychiatry. 220(6). 330–338. 10 indexed citations

13.

Mahedy, Liam, Georgina J MacArthur, Gemma Hammerton, et al.. (2018). The effect of parental drinking on alcohol use in young adults: the mediating role of parental monitoring and peer deviance. Addiction. 113(11). 2041–2050. 30 indexed citations

14.

Hammerton, Gemma, Jon Heron, Liam Mahedy, et al.. (2018). Low resting heart rate, sensation seeking and the course of antisocial behaviour across adolescence and young adulthood. Psychological Medicine. 48(13). 2194–2201. 13 indexed citations

15.

Mahedy, Liam, Gemma Hammerton, Alison Teyhan, et al.. (2017). Parental alcohol use and risk of behavioral and emotional problems in offspring. PLoS ONE. 12(6). e0178862–e0178862. 19 indexed citations

16.

Rice, Frances, Ruth Sellers, Gemma Hammerton, et al.. (2016). Antecedents of New-Onset Major Depressive Disorder in Children and Adolescents at High Familial Risk. JAMA Psychiatry. 74(2). 153–153. 67 indexed citations

17.

Thapar, Ajay K, Kerenza Hood, Stephan Collishaw, et al.. (2016). Identifying key parent-reported symptoms for detecting depression in high risk adolescents. Psychiatry Research. 242. 210–217. 8 indexed citations

18.

Mars, Becky, Stephan Collishaw, Gemma Hammerton, et al.. (2015). Longitudinal symptom course in adults with recurrent depression: Impact on impairment and risk of psychopathology in offspring. Journal of Affective Disorders. 182. 32–38. 14 indexed citations

19.

Hammerton, Gemma, et al.. (2013). Depression and blood pressure in high-risk children and adolescents: an investigation using two longitudinal cohorts. BMJ Open. 3(9). e003206–e003206. 14 indexed citations

20.

Thapar, Ajay K, Gemma Hammerton, Stephan Collishaw, et al.. (2013). Detecting recurrent major depressive disorder within primary care rapidly and reliably using short questionnaire measures. British Journal of General Practice. 64(618). e31–e37. 7 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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