Thordur Sigmundsson

10.3k total citations
31 papers, 1.5k citations indexed

About

Thordur Sigmundsson is a scholar working on Psychiatry and Mental health, Cognitive Neuroscience and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Thordur Sigmundsson has authored 31 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Psychiatry and Mental health, 12 papers in Cognitive Neuroscience and 6 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Thordur Sigmundsson's work include Schizophrenia research and treatment (12 papers), Functional Brain Connectivity Studies (10 papers) and Advanced Neuroimaging Techniques and Applications (6 papers). Thordur Sigmundsson is often cited by papers focused on Schizophrenia research and treatment (12 papers), Functional Brain Connectivity Studies (10 papers) and Advanced Neuroimaging Techniques and Applications (6 papers). Thordur Sigmundsson collaborates with scholars based in Iceland, United Kingdom and Denmark. Thordur Sigmundsson's co-authors include Kathryn Greenwood, John Suckling, Edward T. Bullmore, María A. Ron, Steven Williams, Brian Toone, Michael Maier, Hannes Pétursson, Rimmei Fukuda and Robin Murray and has published in prestigious journals such as American Journal of Psychiatry, Neurology and Biological Psychiatry.

In The Last Decade

Thordur Sigmundsson

30 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Thordur Sigmundsson Iceland 17 672 624 356 352 298 31 1.5k
Jessika E. Sussmann United Kingdom 21 920 1.4× 809 1.3× 583 1.6× 378 1.1× 286 1.0× 32 1.8k
Thomas Nickl‐Jockschat Germany 23 413 0.6× 861 1.4× 210 0.6× 354 1.0× 422 1.4× 66 1.7k
Daqiang Sun United States 10 604 0.9× 657 1.1× 382 1.1× 133 0.4× 254 0.9× 15 1.3k
Christine Vidal United States 11 493 0.7× 782 1.3× 398 1.1× 223 0.6× 139 0.5× 12 1.3k
Annabella Di Giorgio Italy 25 513 0.8× 796 1.3× 266 0.7× 251 0.7× 429 1.4× 49 1.9k
Sridevi Kalidindi United Kingdom 18 566 0.8× 619 1.0× 176 0.5× 377 1.1× 369 1.2× 35 1.4k
Christian Richelme France 11 214 0.3× 554 0.9× 275 0.8× 215 0.6× 301 1.0× 30 1.5k
Teresa Popolizio Italy 28 493 0.7× 1.0k 1.7× 643 1.8× 247 0.7× 480 1.6× 87 2.5k
Emma Sprooten United States 25 612 0.9× 846 1.4× 554 1.6× 342 1.0× 271 0.9× 66 1.7k
Hao Yang Tan United States 23 731 1.1× 1.4k 2.2× 406 1.1× 329 0.9× 369 1.2× 63 2.4k

Countries citing papers authored by Thordur Sigmundsson

Since Specialization
Citations

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

Fields of papers citing papers by Thordur Sigmundsson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Thordur Sigmundsson

This figure shows the co-authorship network connecting the top 25 collaborators of Thordur Sigmundsson. A scholar is included among the top collaborators of Thordur Sigmundsson 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 Thordur Sigmundsson. Thordur Sigmundsson 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.
Ettinger, Ulrich, Brynja B. Magnúsdóttir, Andrés Ingason, et al.. (2009). Neuregulin-1 genotypes and eye movements in schizophrenia. European Archives of Psychiatry and Clinical Neuroscience. 260(1). 77–85. 8 indexed citations
2.
Ettinger, Ulrich, Brynja B. Magnúsdóttir, Thordur Sigmundsson, et al.. (2009). COMT val158met genotype and smooth pursuit eye movements in schizophrenia. Psychiatry Research. 169(2). 173–175. 14 indexed citations
3.
Greenwood, Kathryn, Robin G. Morris, Thordur Sigmundsson, Sabine Landau, & Til Wykes. (2008). Executive functioning in schizophrenia and the relationship with symptom profile and chronicity. Journal of the International Neuropsychological Society. 14(5). 782–792. 21 indexed citations
4.
Ettinger, Ulrich, Brynja B. Magnúsdóttir, Thordur Sigmundsson, et al.. (2008). Catechol-O-Methyltransferase Val158Met Polymorphism and Antisaccade Eye Movements in Schizophrenia. Schizophrenia Bulletin. 36(1). 157–164. 30 indexed citations
5.
Ettinger, Ulrich, et al.. (2008). Eye movement deficits in schizophrenia. European Archives of Psychiatry and Clinical Neuroscience. 258(6). 373–383. 25 indexed citations
6.
Lublin, Henrik, Hans‐Joachim Haug, Hannu Koponen, Thordur Sigmundsson, & Stefan Kolb. (2008). Ziprasidone versus olanzapine, risperidone or quetiapine in patients with chronic schizophrenia: A 12-week open-label, multicentre clinical trial. The World Journal of Biological Psychiatry. 10(4-3). 710–718. 16 indexed citations
7.
Ettinger, Ulrich, et al.. (2008). 157 – Catechol-O-methyltransferase polymorphism and antisaccade eye movements in schizophrenia. Schizophrenia Research. 98. 97–98. 2 indexed citations
8.
Haraldsson, Magnús, Ulrich Ettinger, Brynja B. Magnúsdóttir, et al.. (2007). Oculomotor deficits in schizophrenia: Validation of endophenotypes in a genetically homogenous Icelandic sample. European Psychiatry. 22. S114–S114.
9.
Ingason, Andrés, Thordur Sigmundsson, Stacy Steinberg, et al.. (2007). Support for involvement of the AHI1 locus in schizophrenia. European Journal of Human Genetics. 15(9). 988–991. 35 indexed citations
10.
Sigmundsson, Thordur, T. Sharma, Timothea Toulopoulou, et al.. (2007). Reaction time and sustained attention in schizophrenia and its genetic predisposition. Schizophrenia Research. 95(1-3). 76–85. 59 indexed citations
11.
Sigmundsson, Thordur, T. Sharma, Timothea Toulopoulou, et al.. (2007). Executive function and genetic predisposition to schizophrenia—the Maudsley family study. American Journal of Medical Genetics Part B Neuropsychiatric Genetics. 147B(3). 285–293. 40 indexed citations
12.
Schulze, Katja, Colm McDonald, Sophia Frangou, et al.. (2003). Hippocampal volume in familial and nonfamilial schizophrenic probands and their unaffected relatives. Biological Psychiatry. 53(7). 562–570. 69 indexed citations
13.
Sigmundsson, Thordur, John Suckling, Michael Maier, et al.. (2001). Structural Abnormalities in Frontal, Temporal, and Limbic Regions and Interconnecting White Matter Tracts in Schizophrenic Patients With Prominent Negative Symptoms. American Journal of Psychiatry. 158(2). 234–243. 389 indexed citations
14.
15.
Greenwood, Kathryn, Thordur Sigmundsson, Robin G. Morris, & Til Wykes. (2000). A comparison of profiles of executive impairments in schizophrenia: The relationship with chronicity and symptoms. Schizophrenia Research. 41(1). 286–287. 5 indexed citations
16.
Sigmundsson, Thordur, John Suckling, Marc A. Maier, et al.. (2000). Structural abnormalities in frontal, temporal and limbic regions and interconnecting white matter tracts in schizophrenia. Schizophrenia Research. 41(1). 5–6. 5 indexed citations
17.
Kalsi, Gursharan, Jon Brynjolfsson, Thordur Sigmundsson, et al.. (1997). Exclusion of linkage between schizophrenia and the gene encoding a neutral amino acid glutamate/aspartate transporter, SLC1A5. American Journal of Medical Genetics. 74(1). 50–52. 1 indexed citations
18.
Chen, Andrew C. H., Gursharan Kalsi, Jon Brynjolfsson, et al.. (1997). Exclusion of linkage between schizophrenia and the gene encoding a neutral amino acid glutamate/aspartate transporter, SLC1A5. American Journal of Medical Genetics. 74(1). 50–52. 4 indexed citations
19.
Sigmundsson, Thordur, et al.. (1996). Minor physical anomalies in schizophrenic patients and their relatives. Schizophrenia Research. 18(2-3). 170–170. 2 indexed citations
20.
Kalsi, Gursharan, Jon Brynjolfsson, Robert J. Butler, et al.. (1995). Linkage analysis of chromosome 22q12–13 in a United Kingdom/Icelandic sample of 23 multiplex schizophrenia families. American Journal of Medical Genetics. 60(4). 298–301. 32 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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