Johannes Hamann

7.7k total citations · 2 hit papers
136 papers, 5.5k citations indexed

About

Johannes Hamann is a scholar working on General Health Professions, Clinical Psychology and Psychiatry and Mental health. According to data from OpenAlex, Johannes Hamann has authored 136 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in General Health Professions, 72 papers in Clinical Psychology and 47 papers in Psychiatry and Mental health. Recurrent topics in Johannes Hamann's work include Patient-Provider Communication in Healthcare (41 papers), Psychiatric care and mental health services (37 papers) and Healthcare Decision-Making and Restraints (37 papers). Johannes Hamann is often cited by papers focused on Patient-Provider Communication in Healthcare (41 papers), Psychiatric care and mental health services (37 papers) and Healthcare Decision-Making and Restraints (37 papers). Johannes Hamann collaborates with scholars based in Germany, Austria and United States. Johannes Hamann's co-authors include Werner Kissling, Stefan Leucht, Rolf R. Engel, S. Leucht, John M. Kane, Stephan Heres, Jamie Kane, Rosmarie Mendel, Raymonde Busch and Rudolf Cohen and has published in prestigious journals such as The Lancet, American Journal of Psychiatry and Diabetes Care.

In The Last Decade

Johannes Hamann

129 papers receiving 5.3k citations

Hit Papers

align trajectories sort by overperformance

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.

What does the PANSS mean?

2005 926 citations Johannes Hamann et al. profile →
Clinical implications of Brief Psychiatric Rating Scale scores

2005 683 citations Stefan Leucht, Werner Kissling et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Johannes Hamann Germany	34	3.1k	1.8k	1.7k	1.3k	581	136	5.5k
Julie Kreyenbuhl United States	35	3.8k 1.3×	1.3k 0.7×	1.6k 0.9×	960 0.7×	1.2k 2.0×	94	5.9k
Fiona Gaughran United Kingdom	40	4.2k 1.4×	748 0.4×	1.6k 0.9×	659 0.5×	843 1.5×	198	8.4k
Max Marshall United Kingdom	40	4.3k 1.4×	1.3k 0.7×	3.0k 1.7×	1.6k 1.2×	1.6k 2.7×	87	6.4k
Carsten Hjorthøj Denmark	40	3.2k 1.0×	1.2k 0.7×	1.8k 1.1×	831 0.6×	1.0k 1.7×	226	6.3k
Povl Munk‐Jørgensen Denmark	39	2.4k 0.8×	851 0.5×	1.9k 1.1×	705 0.5×	1.1k 1.8×	200	4.9k
José Luis Vázquez‐Barquero Spain	49	4.0k 1.3×	875 0.5×	2.2k 1.3×	775 0.6×	1.4k 2.5×	148	7.4k
Anthony J. Pelosi United Kingdom	30	2.5k 0.8×	896 0.5×	1.5k 0.9×	788 0.6×	626 1.1×	68	4.6k
Anthony Mann United Kingdom	39	2.0k 0.7×	1.4k 0.8×	1.8k 1.1×	352 0.3×	1.2k 2.1×	105	5.5k
Vera A. Morgan Australia	31	2.2k 0.7×	723 0.4×	1.4k 0.8×	430 0.3×	826 1.4×	142	4.4k
Ellenor Mittendorfer‐Rutz Sweden	31	1.7k 0.5×	1.0k 0.6×	2.0k 1.2×	304 0.2×	652 1.1×	236	4.6k

Countries citing papers authored by Johannes Hamann

Since Specialization

Citations

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

Fields of papers citing papers by Johannes Hamann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Johannes Hamann

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

Bechdolf, Andreas, Sebastian von Peter, Gerhard Längle, et al.. (2024). Utilization of Psychiatric Hospital Services Following Intensive Home Treatment. JAMA Network Open. 7(11). e2445042–e2445042. 1 indexed citations

Krumm, Silvia, Stefan Leucht, Spyridon Siafis, et al.. (2023). Informing the development of a decision aid: Expectations and wishes from service users and psychiatrists towards a decision aid for antipsychotics in the inpatient setting. Health Expectations. 26(3). 1327–1338. 4 indexed citations

Weinmann, Stefan, Sebastian von Peter, Gerhard Längle, et al.. (2023). StäB oder Station? – Erste Ergebnisse zur Studienpopulation und zur Behandlung im Rahmen der multizentrischen AKtiV-Studie zur stationsäquivalenten Behandlung. Psychiatrische Praxis. 50(8). 407–414. 4 indexed citations

Heres, Stephan, et al.. (2021). Einbeziehung von Bezugspersonen im Rahmen eines psychiatrisch-stationären Behandlungsverlaufes. Nervenheilkunde. 40(6). 406–418.

Baumgardt, Johanna, Julian Schwarz, Andreas Bechdolf, et al.. (2021). Correction to: Implementation, efficacy, costs and processes of inpatient equivalent hometreatment in German mental health care (AKtiV): protocol of a mixed-method, participatory, quasi-experimental trial. BMC Psychiatry. 21(1). 199–199. 12 indexed citations

Lang, Anne, Peter Brieger, Susanne Menzel, & Johannes Hamann. (2021). Differences between suicide note leavers and other suicides: A German psychological autopsy study. Journal of Psychiatric Research. 137. 173–177. 5 indexed citations

Hamann, Johannes, et al.. (2020). Nocebo effects by providing informed consent in shared decision making? Not necessarily: a randomized pilot-trial using an open-label placebo approach. BMC Medical Ethics. 21(1). 97–97. 3 indexed citations

Heres, Stephan, et al.. (2020). Caregiver involvement in psychiatric inpatient treatment – a representative survey among triads of patients, caregivers and hospital psychiatrists. Epidemiology and Psychiatric Sciences. 29. e129–e129. 11 indexed citations

Auzanneau, Marie, Stefanie Lanzinger, Barbara Bohn, et al.. (2018). Area Deprivation and Regional Disparities in Treatment and Outcome Quality of 29,284 Pediatric Patients With Type 1 Diabetes in Germany: A Cross-sectional Multicenter DPV Analysis. Diabetes Care. 41(12). 2517–2525. 40 indexed citations

10.

Schneider, Antonius, Sven Hilbert, Johannes Hamann, et al.. (2017). The Implications of Psychological Symptoms for Length of Sick Leave: Burnout, Depression, and Anxiety as Predictors in a Primary Care Setting. University of Regensburg Publication Server (University of Regensburg). 2 indexed citations

11.

Heres, Stephan & Johannes Hamann. (2017). „Shared decision-making“ in der Akutpsychiatrie. Der Nervenarzt. 88(9). 995–1002. 5 indexed citations

12.

Schneider, Antonius, Sven Hilbert, Johannes Hamann, et al.. (2017). The Implications of Psychological Symptoms for Length of Sick Leave. Deutsches Ärzteblatt international. 114(17). 291–297. 7 indexed citations

13.

Dost, Axel, Tilman Rohrer, Elke Fröhlich‐Reiterer, et al.. (2015). Hyperthyroidism in 276 Children and Adolescents with Type 1 Diabetes from Germany and Austria. Hormone Research in Paediatrics. 84(3). 190–198. 23 indexed citations

14.

Hamann, Johannes, Rosmarie Mendel, Barbara A. Fink, et al.. (2008). Patients’ and Psychiatrists’ Perceptions of Clinical Decisions During Schizophrenia Treatment. The Journal of Nervous and Mental Disease. 196(4). 329–332. 55 indexed citations

15.

Kissling, Werner, et al.. (2008). Patientenbeteiligung in der Psychiatrie - eine kritische Bestandsaufnahme. Psychiatrische Praxis. 35(3). 111–121. 10 indexed citations

16.

Hamann, Johannes, Horst Bickel, Hartwig Schwaibold, R. Härtung, & Hans Förstl. (2005). Postoperative acute confusional state in typical urologic population: Incidence, risk factors, and strategies for prevention. Urology. 65(3). 449–453. 10 indexed citations

17.

Heres, Stephan, Stefan Wagenpfeil, Johannes Hamann, Werner Kissling, & Stefan Leucht. (2004). Language bias in neuroscience—is the Tower of Babel located in Germany?. European Psychiatry. 19(4). 230–232. 7 indexed citations

18.

Hamann, Johannes, et al.. (2003). Antipsychotic prescribing patterns in Germany: a retrospective analysis using a large outpatient prescription database. International Clinical Psychopharmacology. 18(4). 237–242. 26 indexed citations

19.

Guégan, Philippe, et al.. (1992). Contribution a l'usinage des materiaux composites. Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea). 3 indexed citations

20.

Heeschen, W., et al.. (1990). Studies on the influence of aflatoxin M1-excretion by polychlorinated biphenyls in lactating cows.. 42(4). 543–552. 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.

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