Alex Gamma

12.6k total citations · 4 hit papers
116 papers, 9.3k citations indexed

About

Alex Gamma is a scholar working on Psychiatry and Mental health, Clinical Psychology and Experimental and Cognitive Psychology. According to data from OpenAlex, Alex Gamma has authored 116 papers receiving a total of 9.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Psychiatry and Mental health, 46 papers in Clinical Psychology and 16 papers in Experimental and Cognitive Psychology. Recurrent topics in Alex Gamma's work include Bipolar Disorder and Treatment (38 papers), Schizophrenia research and treatment (21 papers) and Electroconvulsive Therapy Studies (16 papers). Alex Gamma is often cited by papers focused on Bipolar Disorder and Treatment (38 papers), Schizophrenia research and treatment (21 papers) and Electroconvulsive Therapy Studies (16 papers). Alex Gamma collaborates with scholars based in Switzerland, United States and Slovenia. Alex Gamma's co-authors include Jules Angst, Vladeta Ajdacic‐Gross, Wulf Rössler, Dominique Eich, Franz X. Vollenweider, Matthias E. Liechti, Franco Benazzi, Erich Studerus, Daniel J. Buysse and Gregor Hasler and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

Alex Gamma

112 papers receiving 8.9k 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.

Prevalence, Course, and Comorbidity of Insomnia and Depression in Young Adults

2008 638 citations Jules Angst, Alex Gamma et al. profile →
Toward a re-definition of subthreshold bipolarity: epidemiology and proposed criteria for bipolar-II, minor bipolar disorders and hypomania

2002 630 citations Jules Angst, Alex Gamma et al. Journal of Affective Disorders profile →
The Association Between Short Sleep Duration and Obesity in Young Adults: a 13-Year Prospective Study

2004 525 citations Gregor Hasler, Alex Gamma et al. profile →
The HCL-32: Towards a self-assessment tool for hypomanic symptoms in outpatients

2005 521 citations Jules Angst, Franco Benazzi et al. Journal of Affective Disorders profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Alex Gamma Switzerland	49	4.2k	3.4k	2.2k	1.5k	1.3k	116	9.3k
Joy M. Schmitz United States	45	2.3k 0.5×	1.7k 0.5×	1.1k 0.5×	1.1k 0.8×	984 0.7×	218	8.4k
Hildegard Pfister Germany	48	3.8k 0.9×	1.8k 0.5×	1.9k 0.8×	756 0.5×	1.0k 0.8×	107	8.5k
Roselind Lieb Germany	69	8.2k 2.0×	4.2k 1.2×	4.3k 1.9×	1.4k 1.0×	2.0k 1.5×	257	15.8k
Stanley Zammit United Kingdom	59	3.7k 0.9×	4.7k 1.4×	1.4k 0.6×	1.7k 1.2×	3.0k 2.3×	261	13.6k
Frances R. Levin United States	52	2.0k 0.5×	2.8k 0.8×	815 0.4×	1.2k 0.8×	2.7k 2.1×	272	8.7k
Luigi Janiri Italy	48	2.9k 0.7×	1.9k 0.6×	942 0.4×	740 0.5×	826 0.6×	261	7.8k
Helen M. Pettinati United States	54	2.4k 0.6×	2.9k 0.9×	1.2k 0.6×	1.1k 0.7×	2.5k 1.9×	158	14.2k
Domenico De Berardis Italy	52	2.5k 0.6×	2.9k 0.9×	1.2k 0.6×	1.0k 0.7×	1.2k 0.9×	281	7.7k
Roger P. Pickering United States	42	6.5k 1.6×	2.3k 0.7×	1.7k 0.8×	681 0.5×	2.5k 1.9×	57	15.6k
Boji Huang United States	35	4.7k 1.1×	1.7k 0.5×	1.5k 0.7×	569 0.4×	1.7k 1.3×	51	11.2k

Countries citing papers authored by Alex Gamma

Since Specialization

Citations

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

Fields of papers citing papers by Alex Gamma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alex Gamma

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

Gamma, Alex, Jules Angst, Jean‐Michel Azorin, et al.. (2013). Transcultural validity of the Hypomania Checklist–32 (HCL‐32) in patients with major depressive episodes. Bipolar Disorders. 15(6). 701–712. 29 indexed citations

Silverstein, Brett, To'Meisha S. Edwards, Alex Gamma, et al.. (2012). The role played by depression associated with somatic symptomatology in accounting for the gender difference in the prevalence of depression. Social Psychiatry and Psychiatric Epidemiology. 48(2). 257–263. 95 indexed citations

Azorin, Jean-Michel, Jules Angst, Alex Gamma, et al.. (2011). Identifying features of bipolarity in patients with first-episode postpartum depression: Findings from the international BRIDGE study. Journal of Affective Disorders. 136(3). 710–715. 59 indexed citations

Landolt, Karin, Vladeta Ajdacic‐Gross, Jules Angst, et al.. (2010). Smoking and psychiatric disorders: Have subthreshold disorders been overlooked?. Nicotine & Tobacco Research. 12(5). 516–520. 10 indexed citations

Angst, Jules, Alex Gamma, Franco Benazzi, Vladeta Ajdacic‐Gross, & Wulf Rössler. (2007). Melancholia and atypical depression in the Zurich study: epidemiology, clinical characteristics, course, comorbidity and personality. Acta Psychiatrica Scandinavica. 115(s433). 72–84. 86 indexed citations

Endrass, Jérôme, Stefan Vetter, Alex Gamma, et al.. (2007). Are behavioral problems in childhood and adolescence associated with bipolar disorder in early adulthood?. European Archives of Psychiatry and Clinical Neuroscience. 257(4). 217–221. 15 indexed citations

Hasler, Gregor, Peter J. Gergen, Vladeta Ajdacic‐Gross, et al.. (2006). Asthma and body weight change: a 20-year prospective community study of young adults. International Journal of Obesity. 30(7). 1111–1118. 44 indexed citations

Rössler, Wulf, Christoph Lauber, Jules Angst, et al.. (2006). The use of complementary and alternative medicine in the general population: results from a longitudinal community study. Psychological Medicine. 37(1). 73–84. 44 indexed citations

Hasler, Gregor, Peter J. Gergen, David G. Kleinbaum, et al.. (2005). Asthma and Panic in Young Adults. American Journal of Respiratory and Critical Care Medicine. 171(11). 1224–1230. 174 indexed citations

10.

Angst, Jules, et al.. (2005). Suicide in 406 Mood-Disorder Patients With and Without Long-Term Medication: A 40 to 44 Years' Follow-Up. Archives of Suicide Research. 9(3). 279–300. 214 indexed citations

11.

Hasler, Gregor, Daniel S. Pine, David G. Kleinbaum, et al.. (2005). Depressive symptoms during childhood and adult obesity: the Zurich Cohort Study. Molecular Psychiatry. 10(9). 842–850. 151 indexed citations

12.

Angst, Jules, Alex Gamma, Jérôme Endrass, et al.. (2005). Obsessive-compulsive syndromes and disorders. European Archives of Psychiatry and Clinical Neuroscience. 255(1). 65–71. 115 indexed citations

13.

Angst, Jules, Alex Gamma, Martin Neuenschwander, et al.. (2005). Prevalence of mental disorders in the Zurich Cohort Study: a twenty year prospective study. Epidemiologia e Psichiatria Sociale. 14(2). 68–76. 105 indexed citations

14.

Angst, Jules, Robert Sellaro, Hans H. Stassen, & Alex Gamma. (2003). Diagnostic conversion from depression to bipolar disorders: results of a long-term prospective study of hospital admissions. Journal of Affective Disorders. 84(2-3). 149–157. 226 indexed citations

15.

Pezawas, Lukas, Jules Angst, Alex Gamma, et al.. (2003). Recurrent brief depression—past and future. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 27(1). 75–83. 14 indexed citations

16.

Eich, Dominique, Vladeta Ajdacic‐Gross, Heartley B. Huber, et al.. (2003). The Zurich Study: participation patterns and Symptom Checklist 90‐R scores in six interviews, 1979–99. Acta Psychiatrica Scandinavica. 108(s418). 11–14. 62 indexed citations

17.

Angst, Jules, Alex Gamma, Franco Benazzi, et al.. (2003). Diagnostic issues in bipolar disorder. European Neuropsychopharmacology. 13. 43–50. 91 indexed citations

18.

Angst, Jules, Alex Gamma, Franco Benazzi, et al.. (2002). Toward a re-definition of subthreshold bipolarity: epidemiology and proposed criteria for bipolar-II, minor bipolar disorders and hypomania. Journal of Affective Disorders. 73(1-2). 133–146. 630 indexed citations breakdown →

19.

Liechti, Matthias E., Alex Gamma, & Franz X. Vollenweider. (2001). Gender differences in the subjective effects of MDMA. Psychopharmacology. 154(2). 161–168. 253 indexed citations

20.

Gamma, Alex. (2000). 3,4-Methylenedioxymethamphetamine (MDMA) Modulates Cortical and Limbic Brain Activity as Measured by [H215O]-PET in Healthy Humans. Neuropsychopharmacology. 23(4). 388–395. 110 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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