Ayal Schaffer

10.8k total citations · 1 hit paper
130 papers, 4.7k citations indexed

About

Ayal Schaffer is a scholar working on Clinical Psychology, Psychiatry and Mental health and Social Psychology. According to data from OpenAlex, Ayal Schaffer has authored 130 papers receiving a total of 4.7k indexed citations (citations by other indexed papers that have themselves been cited), including 73 papers in Clinical Psychology, 63 papers in Psychiatry and Mental health and 22 papers in Social Psychology. Recurrent topics in Ayal Schaffer's work include Suicide and Self-Harm Studies (58 papers), Bipolar Disorder and Treatment (55 papers) and Schizophrenia research and treatment (23 papers). Ayal Schaffer is often cited by papers focused on Suicide and Self-Harm Studies (58 papers), Bipolar Disorder and Treatment (55 papers) and Schizophrenia research and treatment (23 papers). Ayal Schaffer collaborates with scholars based in Canada, United States and Australia. Ayal Schaffer's co-authors include Anthony Levitt, Mark Sinyor, Serge Beaulieu, Roger S. McIntyre, Benjamin I. Goldstein, Lakshmi N. Yatham, Amy Cheung, Sidney H. Kennedy, John Cairney and Scott Veldhuizen and has published in prestigious journals such as The Lancet, Biological Psychiatry and The British Journal of Psychiatry.

In The Last Decade

Ayal Schaffer

121 papers receiving 4.6k citations

Hit Papers

Sex Differences in the Global Prevalence of Nonsuicidal S... 2024 2026 2025 2024 10 20 30
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.

  1. Sex Differences in the Global Prevalence of Nonsuicidal Self-Injury in Adolescents
    2024 34 citations Fiona Moloney, Mark Sinyor et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ayal Schaffer Canada 36 2.7k 1.6k 836 537 535 130 4.7k
Max L. Stek Netherlands 44 3.1k 1.2× 1.3k 0.8× 1.1k 1.4× 564 1.1× 773 1.4× 217 6.6k
Andrea Pfennig Germany 35 2.5k 0.9× 1.2k 0.7× 792 0.9× 798 1.5× 626 1.2× 148 4.9k
Pierre‐Michel Llorca France 41 3.0k 1.1× 1.7k 1.1× 854 1.0× 827 1.5× 623 1.2× 307 6.3k
A. Carlo Altamura Italy 40 2.9k 1.1× 1.3k 0.8× 975 1.2× 523 1.0× 433 0.8× 173 5.2k
Jean‐Michel Azorin France 44 4.8k 1.8× 2.1k 1.3× 693 0.8× 752 1.4× 604 1.1× 230 6.3k
Carsten Hjorthøj Denmark 40 3.2k 1.2× 1.8k 1.1× 857 1.0× 591 1.1× 1.0k 1.9× 226 6.3k
Joanna Moncrieff United Kingdom 38 2.0k 0.8× 1.4k 0.9× 975 1.2× 576 1.1× 613 1.1× 157 4.8k
Joseph F. Goldberg United States 46 5.6k 2.1× 2.0k 1.2× 1.0k 1.2× 563 1.0× 336 0.6× 180 6.9k
Gustavo Vázquez United States 39 2.9k 1.1× 1.2k 0.8× 1.1k 1.3× 526 1.0× 284 0.5× 163 4.6k
Michael J. Ostacher United States 42 5.1k 1.9× 2.0k 1.3× 981 1.2× 692 1.3× 338 0.6× 119 6.6k

Countries citing papers authored by Ayal Schaffer

Since Specialization
Citations

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

Fields of papers citing papers by Ayal Schaffer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ayal Schaffer

This figure shows the co-authorship network connecting the top 25 collaborators of Ayal Schaffer. A scholar is included among the top collaborators of Ayal Schaffer 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 Ayal Schaffer. Ayal Schaffer 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.
Moloney, Fiona, et al.. (2025). Research Review: Sex differences in the clinical correlates of nonsuicidal self‐injury in adolescents – a systematic review. Journal of Child Psychology and Psychiatry. 66(8). 1263–1273. 1 indexed citations
2.
Schaffer, Ayal, et al.. (2024). Suicide by different methods in Toronto: A quantitative study examining of 23-years of coronial records. Journal of Affective Disorders. 366. 283–289. 1 indexed citations
3.
Atzema, Clare, Daphne J. Korczak, Sidney H. Kennedy, et al.. (2024). Self-harm presentations to hospital trauma centre emergency departments during the first year of the COVID-19 pandemic. Psychiatry Research. 336. 115892–115892.
4.
5.
Bigford, Gregory E., Krista L. Lanctôt, Peter Giacobbe, et al.. (2024). Engaging Mood Brain Circuits with Psilocybin (EMBRACE): a study protocol for a randomized, placebo-controlled and delayed-start, neuroimaging trial in depression. Trials. 25(1). 441–441. 1 indexed citations
6.
7.
Hawley, Lance L., Thomas Niederkrotenthaler, Ayal Schaffer, et al.. (2022). Is the narrative the message? The relationship between suicide-related narratives in media reports and subsequent suicides. Australian & New Zealand Journal of Psychiatry. 57(5). 758–766. 6 indexed citations
8.
Mitchell, Rachel, Anthony Levitt, Ayal Schaffer, et al.. (2022). Proof‐of‐concept randomized controlled trial of single‐session nitrous oxide treatment for refractory bipolar depression: Focus on cerebrovascular target engagement. Bipolar Disorders. 25(3). 221–232. 14 indexed citations
9.
Fıksenbaum, Lisa, et al.. (2021). Clinical correlates of suicidality and self-injurious behaviour among Canadian adolescents with bipolar disorder. European Child & Adolescent Psychiatry. 32(1). 41–51. 13 indexed citations
10.
Sinyor, Mark, Claire de Oliveira, Ayal Schaffer, et al.. (2021). Emergency department visits for self-harm in adolescents after release of the Netflix series ‘13 Reasons Why’. Australian & New Zealand Journal of Psychiatry. 56(11). 1434–1442. 9 indexed citations
11.
MacIntosh, Bradley J., Rachel Mitchell, Anthony Levitt, et al.. (2020). Nitrous oxide as a putative novel dual-mechanism treatment for bipolar depression: Proof-of-concept study design and methodology. Contemporary Clinical Trials Communications. 19. 100600–100600. 7 indexed citations
12.
Sinyor, Mark, Marissa Williams, Jane Pirkis, et al.. (2020). The association between Twitter content and suicide. Australian & New Zealand Journal of Psychiatry. 55(3). 268–276. 17 indexed citations
13.
Sinyor, Mark, Krista L. Lanctôt, Mahwesh Saleem, et al.. (2020). Antidepressant-placebo differences for specific adverse events in major depressive disorder: A systematic review. Journal of Affective Disorders. 267. 185–190. 18 indexed citations
14.
Liu, Celina S., Krista L. Lanctôt, Alex Kiss, et al.. (2020). The association between placebo arm inclusion and adverse event rates in antidepressant randomized controlled trials: An examination of the Nocebo Effect. Journal of Affective Disorders. 280(Pt A). 140–147. 3 indexed citations
15.
Rizvi, Sakina J., Ari Zaretsky, Ayal Schaffer, & Anthony Levitt. (2015). Is Immediate Adjunctive CBT More Beneficial than Delayed CBT in Treating Depression?. Journal of Psychiatric Practice. 21(2). 107–113. 5 indexed citations
16.
Schaffer, Ayal, Diane McIntosh, Benjamin I. Goldstein, et al.. (2012). The CANMAT task force recommendations for the management of patients with mood disorders and comorbid anxiety disorders.. PubMed. 24(1). 6–22. 75 indexed citations
17.
Schaffer, Ayal, et al.. (2012). Differentiating between Bipolar Disorder Types I and II: Results from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC). Journal of Affective Disorders. 138(1-2). 46–53. 39 indexed citations
18.
Schaffer, Ayal, John Cairney, Scott Veldhuizen, et al.. (2010). A population-based analysis of distinguishers of bipolar disorder from major depressive disorder. Journal of Affective Disorders. 125(1-3). 103–110. 42 indexed citations
19.
Cheung, Amy, Taryn L. Mayes, Anthony Levitt, et al.. (2010). Anxiety As a Predictor of Treatment Outcome in Children and Adolescents with Depression. Journal of Child and Adolescent Psychopharmacology. 20(3). 211–216. 16 indexed citations
20.
Schaffer, Ayal & John Cairney. (2007). Comparison of Antidepressant Use Between Subjects With Bipolar Disorder and Major Depressive Disorder With or Without Comorbid Anxiety. The Journal of Clinical Psychiatry. 68(11). 1785–1792. 13 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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