Helmfried E. Klein

1.7k total citations
49 papers, 1.1k citations indexed

About

Helmfried E. Klein is a scholar working on Clinical Psychology, Psychiatry and Mental health and General Health Professions. According to data from OpenAlex, Helmfried E. Klein has authored 49 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Clinical Psychology, 13 papers in Psychiatry and Mental health and 12 papers in General Health Professions. Recurrent topics in Helmfried E. Klein's work include Psychiatric care and mental health services (11 papers), Health and Medical Studies (9 papers) and Schizophrenia research and treatment (6 papers). Helmfried E. Klein is often cited by papers focused on Psychiatric care and mental health services (11 papers), Health and Medical Studies (9 papers) and Schizophrenia research and treatment (6 papers). Helmfried E. Klein collaborates with scholars based in Germany, Canada and United Kingdom. Helmfried E. Klein's co-authors include Jürgen Müller, Klaus W. Lange, Oliver Tucha, Christian Röder, Hans H. Klünemann, Albert Putzhammer, Göran Hajak, Verena Wagner-Hartl, Monika Sommer and Rainer Laufkötter and has published in prestigious journals such as Neurology, Annals of Neurology and Biological Psychiatry.

In The Last Decade

Helmfried E. Klein

48 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helmfried E. Klein Germany 18 374 272 250 201 138 49 1.1k
Hisham M. Ibrahim United States 11 378 1.0× 203 0.7× 296 1.2× 73 0.4× 63 0.5× 18 1.5k
Ilja Spellmann Germany 21 581 1.6× 176 0.6× 147 0.6× 164 0.8× 93 0.7× 36 1.7k
Francesca Regen Germany 15 252 0.7× 281 1.0× 93 0.4× 214 1.1× 126 0.9× 44 1.0k
Daimei Sasayama Japan 26 563 1.5× 402 1.5× 308 1.2× 211 1.0× 224 1.6× 119 2.1k
Nico J.M. van Beveren Netherlands 22 495 1.3× 110 0.4× 120 0.5× 162 0.8× 134 1.0× 41 1.4k
Wolfgang Jordan Germany 17 232 0.6× 282 1.0× 80 0.3× 144 0.7× 241 1.7× 51 1.3k
Wolfgang Maier Germany 14 204 0.5× 107 0.4× 90 0.4× 133 0.7× 201 1.5× 17 828
Lucas B. Rizzo Brazil 24 764 2.0× 399 1.5× 92 0.4× 126 0.6× 251 1.8× 40 1.8k
Simon Zhornitsky United States 26 383 1.0× 625 2.3× 244 1.0× 66 0.3× 134 1.0× 81 1.8k
Norbert Wodarz Germany 22 232 0.6× 243 0.9× 295 1.2× 210 1.0× 119 0.9× 96 1.6k

Countries citing papers authored by Helmfried E. Klein

Since Specialization
Citations

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

Fields of papers citing papers by Helmfried E. Klein

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helmfried E. Klein. 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 Helmfried E. Klein. The network helps show where Helmfried E. Klein may publish in the future.

Co-authorship network of co-authors of Helmfried E. Klein

This figure shows the co-authorship network connecting the top 25 collaborators of Helmfried E. Klein. A scholar is included among the top collaborators of Helmfried E. Klein 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 Helmfried E. Klein. Helmfried E. Klein 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.
Puschner, Bernd, Carsten Spitzer, Wolfgang Gäebel, et al.. (2011). Needs-oriented discharge planning for high utilisers of psychiatric services: multicentre randomised controlled trial. Epidemiology and Psychiatric Sciences. 20(2). 181–192. 30 indexed citations
2.
Puschner, Bernd, Wolfgang Gäebel, Harald J. Freyberger, et al.. (2008). Needs-oriented discharge planning and monitoring for high utilisers of psychiatric services (NODPAM): Design and methods. BMC Health Services Research. 8(1). 152–152. 18 indexed citations
3.
Tucha, Lara, Oliver Tucha, Rainer Laufkötter, et al.. (2008). Neuropsychological assessment of attention in adults with different subtypes of attention-deficit/hyperactivity disorder. Journal of Neural Transmission. 115(2). 269–278. 69 indexed citations
4.
Tucha, Oliver, Lara Mecklinger, Rainer Laufkötter, et al.. (2006). Methylphenidate-induced improvements of various measures of attention in adults with Attention Deficit Hyperactivity Disorder. Journal of Neural Transmission. 113(10). 1575–1592. 69 indexed citations
5.
Klünemann, Hans H., Ekaterina Rogaeva, Manuela Neumann, et al.. (2005). Novel PS1 mutation in a Bavarian kindred with familial Alzheimer disease.. PubMed. 18(4). 256–8. 13 indexed citations
6.
Putzhammer, Albert, et al.. (2005). Wie wirbt man erfolgreich um Mitarbeiter?. Der Nervenarzt. 77(1). 91–94. 5 indexed citations
7.
Klünemann, Hans H., et al.. (2004). Familiäre Plaque-only-Alzheimer-Krankheit in den Landkreisen Rottal-Inn und Passau. PubMed. 31. 61–63. 2 indexed citations
8.
Wagner-Hartl, Verena, Jürgen Müller, Monika Sommer, Helmfried E. Klein, & Göran Hajak. (2004). Veränderungen in der Emotionsverarbeitung bei Depressiven: eine Studie mit funktioneller Magnetresonanztomographie unter der Verwendung von Bildmaterial affektiven Inhalts. PubMed. 31. 70–72. 17 indexed citations
9.
10.
Schuierer, Gerhard, et al.. (2003). „Acquired Psychopathy” und die Neurobiologie von Emotion und Gewalt. PubMed. 30(Suppl 2). 221–225. 9 indexed citations
11.
Müller, Jürgen, Monika Sommer, Verena Wagner-Hartl, et al.. (2003). Abnormalities in emotion processing within cortical and subcortical regions in criminal psychopaths. Biological Psychiatry. 54(2). 152–162. 198 indexed citations
12.
Müller, Jürgen, et al.. (2002). Subcortical overactivation in untreated schizophrenic patients: A functional magnetic resonance image finger‐tapping study. Psychiatry and Clinical Neurosciences. 56(1). 77–84. 35 indexed citations
13.
Klünemann, Hans H., M. Elleder, Wolfgang E. Kaminski, et al.. (2002). Frontal lobe atrophy due to a mutation in the cholesterol binding protein HE1/NPC2. Annals of Neurology. 52(6). 743–749. 45 indexed citations
14.
Tucha, Oliver, Steffen Aschenbrenner, Peter Eichhammer, et al.. (2001). The impact of tricyclic antidepressants and selective serotonin re-uptake inhibitors on handwriting movements of patients with depression. Psychopharmacology. 159(2). 211–215. 30 indexed citations
15.
Spießl, Hermann, et al.. (2000). Erwartungen und Zufriedenheit sozialpsychiatrischer Dienste im Rahmen ihrer Zusammenarbeit mit der psychiatrischen Klinik. Fortschritte der Neurologie · Psychiatrie. 68(12). 557–563. 4 indexed citations
16.
Eichhammer, P., Margot Albus, Margitta Borrmann-Hassenbach, et al.. (2000). Association of dopamine D3-receptor gene variants with neuroleptic induced akathisia in schizophrenic patients: A generalization of Steen's study onDRD3 and tardive dyskinesia. American Journal of Medical Genetics. 96(2). 187–191. 64 indexed citations
17.
Müller, Jürgen & Helmfried E. Klein. (2000). Neuroleptic therapy influences basal ganglia activation: A functional magnetic resonance imaging study comparing controls to haloperidol‐ and olanzapine‐treated inpatients. Psychiatry and Clinical Neurosciences. 54(6). 653–658. 13 indexed citations
18.
Saller, K., et al.. (1993). Die antidepressive Wirkung des Schlafentzuges (Wachtherapie) im Rahmen eines klinischen Gesamtbehandlungsplans. University of Regensburg Publication Server (University of Regensburg). 2 indexed citations
19.
Müller, Norbert, Margret R. Hoehe, Helmfried E. Klein, et al.. (1989). Endocrinological studies in alcoholics during withdrawal and after abstinence. Psychoneuroendocrinology. 14(1-2). 113–123. 34 indexed citations
20.
Klein, Helmfried E., et al.. (1984). Postdexamethasone prolactin and cortisol: a biological state variable in depression. Acta Psychiatrica Scandinavica. 70(3). 239–247. 31 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

Breakdown of academic impact, for papers by Hisham M. Ibrahim Breakdown of academic impact, for papers by Ilja Spellmann Breakdown of academic impact, for papers by Francesca Regen Breakdown of academic impact, for papers by Daimei Sasayama Breakdown of academic impact, for papers by Nico J.M. van Beveren Breakdown of academic impact, for papers by Wolfgang Jordan Breakdown of academic impact, for papers by Wolfgang Maier Breakdown of academic impact, for papers by Lucas B. Rizzo Breakdown of academic impact, for papers by Simon Zhornitsky Breakdown of academic impact, for papers by Norbert Wodarz
Rankless by CCL
2026