Sami Leppämäki

3.9k total citations
72 papers, 2.5k citations indexed

About

Sami Leppämäki is a scholar working on Psychiatry and Mental health, Cognitive Neuroscience and Clinical Psychology. According to data from OpenAlex, Sami Leppämäki has authored 72 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 53 papers in Psychiatry and Mental health, 20 papers in Cognitive Neuroscience and 17 papers in Clinical Psychology. Recurrent topics in Sami Leppämäki's work include Bipolar Disorder and Treatment (29 papers), Attention Deficit Hyperactivity Disorder (24 papers) and Electroconvulsive Therapy Studies (16 papers). Sami Leppämäki is often cited by papers focused on Bipolar Disorder and Treatment (29 papers), Attention Deficit Hyperactivity Disorder (24 papers) and Electroconvulsive Therapy Studies (16 papers). Sami Leppämäki collaborates with scholars based in Finland, United States and Spain. Sami Leppämäki's co-authors include Outi Mantere, Petri Arvilommi, Erkki Isometsä, Kirsi Suominen, Hanna Valtonen, Timo Partonen, Jouko Lönnqvist, Hanna M. Valtonen, Pekka Tani and Jari Haukka and has published in prestigious journals such as SHILAP Revista de lepidopterología, NeuroImage and Brain Research.

In The Last Decade

Sami Leppämäki

70 papers receiving 2.4k citations

Peers

Sami Leppämäki

PMH

ECP

EAS

Alex Hofer Austria

Carol A. Glod United States

Rasim Somer Diler United States

Marie Antoinette Hodge Australia

Luisa Lázaro Spain

Birgitte Fagerlund Denmark

Ritsaert Lieverse Netherlands

Matteo Rocchetti Italy

Yun Ju Christine Song Australia

Isabelle E. Bauer United States

Alex Hofer Austria

Sami Leppämäki

1.9k ×1.3

PMH

955 ×1.1

867 ×1.6

528 ×1.3

ECP

95 ×0.4

EAS

Citations per year, relative to Sami Leppämäki Sami Leppämäki (= 1×) peers Alex Hofer

Countries citing papers authored by Sami Leppämäki

Since Specialization

Citations

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

Fields of papers citing papers by Sami Leppämäki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sami Leppämäki

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

Leppämäki, Sami, Timo Roine, Kimmo Alho, et al.. (2024). Working memory related functional connectivity in adult ADHD and its amenability to training: A randomized controlled trial. NeuroImage Clinical. 44. 103696–103696.

Arvilommi, Petri, Outi Mantere, Kirsi Suominen, et al.. (2022). Long-term work disability due to type I and II bipolar disorder: findings of a six-year prospective study. International Journal of Bipolar Disorders. 10(1). 19–19. 9 indexed citations

Salmi, Juha, Jussi Tohka, Kimmo Alho, et al.. (2019). ADHD desynchronizes brain activity during watching a distracted multi-talker conversation. NeuroImage. 216. 116352–116352. 34 indexed citations

Isometsä, Erkki, Kirsi Suominen, Mikko Ketokivi, et al.. (2017). Incidence and predictors of suicide attempts in bipolar I and II disorders: a 5-year follow-up study. STM:n Hallinnonalan avoin julkaisuarkisto (Julkari). 8 indexed citations

Chudal, Roshan, et al.. (2017). Register-based study of the incidence, comorbidities and demographics of obsessive-compulsive disorder in specialist healthcare. BMC Psychiatry. 17(1). 64–64. 17 indexed citations

Karlsson, Linnéa, Lauri Tuominen, Sami Leppämäki, et al.. (2013). Serotonin transporter in attention-deficit hyperactivity disorder – preliminary results from a positron emission tomography study. Psychiatry Research Neuroimaging. 212(2). 164–165. 15 indexed citations

Salmi, Juha, Ulrika Roine, Enrico Glerean, et al.. (2013). The brains of high functioning autistic individuals do not synchronize with those of others. NeuroImage Clinical. 3. 489–497. 94 indexed citations

Mantere, Outi, Kirsi Suominen, Hanna M. Valtonen, et al.. (2012). Concomitants of Family Histories of Mood Disorders and Alcoholism in a Clinical Cohort of Patients With Bipolar I and II Disorder. The Journal of Nervous and Mental Disease. 200(5). 388–394. 6 indexed citations

Jylhä, Pekka, Outi Mantere, T. Melartin, et al.. (2011). Differences in temperament and character dimensions in patients with bipolar I or II or major depressive disorder and general population subjects. Psychological Medicine. 41(8). 1579–1591. 34 indexed citations

10.

Jylhä, Pekka, Outi Mantere, Tarja Melartin, et al.. (2010). Differences in neuroticism and extraversion between patients with bipolar I or II and general population subjects or major depressive disorder patients. Journal of Affective Disorders. 125(1-3). 42–52. 43 indexed citations

11.

Mantere, Outi, Erkki Isometsä, Mikko Ketokivi, et al.. (2010). A prospective latent analyses study of psychiatric comorbidity of DSM‐IV bipolar I and II disorders. Bipolar Disorders. 12(3). 271–284.

12.

Valtonen, Hanna M., Kirsi Suominen, Jari Haukka, et al.. (2008). Differences in incidence of suicide attempts during phases of bipolar I and II disorders. Bipolar Disorders. 10(5). 588–596. 96 indexed citations

13.

Valtonen, Hanna M., Kirsi Suominen, Jari Haukka, et al.. (2008). Hopelessness across phases of bipolar I or II disorder: A prospective study. Journal of Affective Disorders. 115(1-2). 11–17. 14 indexed citations

14.

Isometsä, Erkki, Hanna Valtonen, Kirsi Suominen, et al.. (2006). Prospective study of risk factors for attempted suicide among patients with bipolar disorder. Psychiatria Danubina. 18. 46–46. 1 indexed citations

15.

Lahti, Tuuli, Sami Leppämäki, Jari Haukka, et al.. (2006). Transition into daylight saving time influences the fragmentation of the rest-activity cycle. SHILAP Revista de lepidopterología. 4(0). 1–1. 41 indexed citations

16.

Lahti, Tuuli, Sami Leppämäki, Jouko Lönnqvist, & Timo Partonen. (2006). Transition to daylight saving time reduces sleep duration plus sleep efficiency of the deprived sleep. Neuroscience Letters. 406(3). 174–177. 71 indexed citations

17.

Leppämäki, Sami, Jari Haukka, Jouko Lönnqvist, & Timo Partonen. (2004). Drop-out and mood improvement: a randomised controlled trial with light exposure and physical exercise [ISRCTN36478292]. BMC Psychiatry. 4(1). 22–22. 30 indexed citations

18.

Leppämäki, Sami, Ybe Meesters, Jari Haukka, Jouko Lönnqvist, & Timo Partonen. (2003). Effect of simulated dawn on quality of sleep – a community-based trial. BMC Psychiatry. 3(1). 14–14. 47 indexed citations

19.

Isometsä, Erkki, Kirsi Suominen, Outi Mantere, et al.. (2003). The Mood Disorder Questionnaire improves recognition of bipolar disorder in psychiatric care. BMC Psychiatry. 3(1). 8–8. 92 indexed citations

20.

Partonen, Timo, et al.. (1998). Randomized trial of physical exercise alone or combined with bright light on mood and health-related quality of life. Psychological Medicine. 28(6). 1359–1364. 58 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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