Sonja Sulkava

654 total citations
14 papers, 234 citations indexed

About

Sonja Sulkava is a scholar working on Experimental and Cognitive Psychology, Endocrine and Autonomic Systems and Molecular Biology. According to data from OpenAlex, Sonja Sulkava has authored 14 papers receiving a total of 234 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Experimental and Cognitive Psychology, 5 papers in Endocrine and Autonomic Systems and 3 papers in Molecular Biology. Recurrent topics in Sonja Sulkava's work include Sleep and related disorders (5 papers), Circadian rhythm and melatonin (5 papers) and Epigenetics and DNA Methylation (3 papers). Sonja Sulkava is often cited by papers focused on Sleep and related disorders (5 papers), Circadian rhythm and melatonin (5 papers) and Epigenetics and DNA Methylation (3 papers). Sonja Sulkava collaborates with scholars based in Finland, United Kingdom and United States. Sonja Sulkava's co-authors include Tiina Paunio, Hanna M. Ollila, Vesa Selonen, Erkki Korpimäki, Pekka Sulkava, Raimo Sulkava, Katriina Viitasalo, Sampsa Puttonen, Alexandra Lahtinen and Auli Toivola and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and Human Molecular Genetics.

In The Last Decade

Sonja Sulkava

13 papers receiving 228 citations

Peers

Sonja Sulkava

ECOLO

ECP

EAS

Colin Hendrie United Kingdom

Xiaolei An China

Sophie St-Cyr Canada

Daniel J. Tobiansky United States

R.H. Jonik Canada

Stephanie Keer United States

Deborah Flores United States

Tamo Nakamura Australia

Matthew Baker United States

Paul R. Lee United States

Colin Hendrie United Kingdom

Sonja Sulkava

92 ×1.8

ECOLO

56 ×1.1

58 ×1.2

ECP

18 ×0.4

EAS

47 ×1.3

Citations per year, relative to Sonja Sulkava Sonja Sulkava (= 1×) peers Colin Hendrie

Countries citing papers authored by Sonja Sulkava

Since Specialization

Citations

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

Fields of papers citing papers by Sonja Sulkava

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sonja Sulkava

This figure shows the co-authorship network connecting the top 25 collaborators of Sonja Sulkava. A scholar is included among the top collaborators of Sonja Sulkava 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 Sonja Sulkava. Sonja Sulkava is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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14 of 14 papers shown

Kantojärvi, Katri, Sonja Sulkava, Tuija Jääskeläinen, et al.. (2025). Genetic predisposition for morningness-eveningness and economic disadvantage: Evidence from Finland over 25 years. Sleep Medicine. 136. 106811–106811.

Kantojärvi, Katri, Sonja Sulkava, Tuija Jääskeläinen, et al.. (2025). Schizophrenia genetic risk and labour market outcomes in the Finnish general population: Are schizophrenia-related traits penalised or rewarded?. Comprehensive Psychiatry. 140. 152600–152600. 1 indexed citations

Lahtinen, Alexandra, Sonja Sulkava, Victoria L. Revell, et al.. (2024). Daily rhythm in DNA methylation and the effect of total sleep deprivation. Journal of Sleep Research. 34(4). e14438–e14438. 1 indexed citations

Sulkava, Sonja, Jari Haukka, Raimo Sulkava, Tiina Laatikainen, & Tiina Paunio. (2022). Association Between Psychological Distress and Incident Dementia in a Population-Based Cohort in Finland. JAMA Network Open. 5(12). e2247115–e2247115. 12 indexed citations

Lahtinen, Alexandra, Sampsa Puttonen, Päivi Vanttola, et al.. (2019). A distinctive DNA methylation pattern in insufficient sleep. Scientific Reports. 9(1). 1193–1193. 35 indexed citations

Sulkava, Sonja, Katri Kantojärvi, Pirjo Pölkki, et al.. (2019). Variation nearMTNR1Aassociates with early development and interacts with seasons. Journal of Sleep Research. 29(6). e12925–e12925. 2 indexed citations

Sulkava, Sonja, Raimo Sulkava, Hanna M. Ollila, et al.. (2018). Melatonin receptor type 1A gene linked to Alzheimer’s disease in old age. SLEEP. 41(7). 31 indexed citations

Sulkava, Sonja, Hanna M. Ollila, Sampsa Puttonen, et al.. (2017). Common Genetic Variation Near Melatonin Receptor 1A Gene Linked to Job-Related Exhaustion in Shift Workers. SLEEP. 40(1). 23 indexed citations

Rautiainen, M-R, Tiina Paunio, Eila Repo‐Tiihonen, et al.. (2016). Genome-wide association study of antisocial personality disorder. Translational Psychiatry. 6(9). e883–e883. 35 indexed citations

10.

Sulkava, Sonja, Hanna M. Ollila, Kirsi Ahola, et al.. (2013). Genome-wide scan of job-related exhaustion with three replication studies implicate a susceptibility variant at the UST gene locus. Human Molecular Genetics. 22(16). 3363–3372. 13 indexed citations

11.

Nyman, Emma, Sonja Sulkava, Pia Soronen, et al.. (2011). Interaction of early environment, gender and genes of monoamine neurotransmission in the aetiology of depression in a large population-based Finnish birth cohort. BMJ Open. 1(1). e000087–e000087. 29 indexed citations

12.

Selonen, Vesa, et al.. (2010). Decline of flying and red squirrels in boreal forests revealed by long‐term diet analyses of avian predators. Animal Conservation. 13(6). 579–585. 34 indexed citations

13.

Pyörnilä, A., et al.. (1992). Adaptations to environment in the mountain hare (Lepus timidus): thermal physiology and histochemical properties of locomotory muscles. Canadian Journal of Zoology. 70(7). 1325–1330. 13 indexed citations

14.

Pulliainen, Erkki, et al.. (1986). The familiar area hypothesis and movement patterns of wild forest reindeer in Karelia, Northern Europe. SHILAP Revista de lepidopterología. 6(2). 235–235. 5 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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