Ragnar Olafsson

2.6k total citations
64 papers, 1.9k citations indexed

About

Ragnar Olafsson is a scholar working on Electrical and Electronic Engineering, Biomedical Engineering and Clinical Psychology. According to data from OpenAlex, Ragnar Olafsson has authored 64 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Electrical and Electronic Engineering, 18 papers in Biomedical Engineering and 17 papers in Clinical Psychology. Recurrent topics in Ragnar Olafsson's work include Electrical and Bioimpedance Tomography (18 papers), Obsessive-Compulsive Spectrum Disorders (13 papers) and Photoacoustic and Ultrasonic Imaging (12 papers). Ragnar Olafsson is often cited by papers focused on Electrical and Bioimpedance Tomography (18 papers), Obsessive-Compulsive Spectrum Disorders (13 papers) and Photoacoustic and Ultrasonic Imaging (12 papers). Ragnar Olafsson collaborates with scholars based in United States, Iceland and Netherlands. Ragnar Olafsson's co-authors include Russell S. Witte, Paul M.G. Emmelkamp, Merel Krijn, Ívar Snorrason, Jakob Smári, Helen Cowie, Matthew O’Donnell, Daniel R. Bauer, Sheng‐Wen Huang and Pier Ingram and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Clinical Psychology Review.

In The Last Decade

Ragnar Olafsson

61 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ragnar Olafsson United States 22 586 435 376 336 299 64 1.9k
Chunming Lu China 30 455 0.8× 355 0.8× 623 1.7× 87 0.3× 1.9k 6.3× 93 3.0k
Hongchuan Zhang China 21 293 0.5× 189 0.4× 196 0.5× 66 0.2× 423 1.4× 76 1.9k
David I. Anderson United States 29 249 0.4× 340 0.8× 154 0.4× 916 2.7× 808 2.7× 102 3.6k
K. Wada Japan 20 65 0.1× 137 0.3× 109 0.3× 164 0.5× 263 0.9× 71 2.1k
Chi‐Hoon Choi South Korea 31 848 1.4× 121 0.3× 643 1.7× 123 0.4× 1.3k 4.3× 113 2.8k
Kyle E. Mathewson Canada 20 29 0.0× 1.1k 2.5× 294 0.8× 399 1.2× 2.4k 7.9× 44 3.4k
Dandan Zhang China 29 248 0.4× 53 0.1× 707 1.9× 32 0.1× 1.3k 4.4× 126 2.4k
Matthew Barton Australia 24 301 0.5× 482 1.1× 281 0.7× 61 0.2× 724 2.4× 64 2.3k
Stefanie Richter Germany 21 70 0.1× 317 0.7× 51 0.1× 88 0.3× 354 1.2× 64 1.5k
E. Mueller Germany 22 189 0.3× 46 0.1× 190 0.5× 294 0.9× 464 1.6× 42 2.0k

Countries citing papers authored by Ragnar Olafsson

Since Specialization
Citations

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

Fields of papers citing papers by Ragnar Olafsson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ragnar Olafsson

This figure shows the co-authorship network connecting the top 25 collaborators of Ragnar Olafsson. A scholar is included among the top collaborators of Ragnar Olafsson 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 Ragnar Olafsson. Ragnar Olafsson 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.
Höller, Yvonne, et al.. (2022). Predictability of Seasonal Mood Fluctuations Based on Self-Report Questionnaires and EEG Biomarkers in a Non-clinical Sample. Frontiers in Psychiatry. 13. 870079–870079. 4 indexed citations
2.
Snorrason, Ívar, et al.. (2022). Automaticity and depression: Daily mood-reactive rumination in people with and without depression history.. Journal of Psychopathology and Clinical Science. 131(4). 327–340. 11 indexed citations
3.
Höller, Yvonne, et al.. (2022). EEG-responses to mood induction interact with seasonality and age. Frontiers in Psychiatry. 13. 950328–950328. 4 indexed citations
4.
Snorrason, Ívar, et al.. (2021). Do daily mood fluctuations activate ruminative thoughts as a mental habit? Results from an ecological momentary assessment study. Behaviour Research and Therapy. 140. 103832–103832. 26 indexed citations
5.
Olafsson, Ragnar, et al.. (2019). A Test of the Habit-Goal Framework of Depressive Rumination and Its Relevance to Cognitive Reactivity. Behavior Therapy. 51(3). 474–487. 11 indexed citations
6.
Snorrason, Ívar, Emily J. Ricketts, Ragnar Olafsson, et al.. (2018). Disentangling Reward Processing in Trichotillomania: ‘Wanting’ and ‘Liking’ Hair Pulling Have Distinct Clinical Correlates. Journal of Psychopathology and Behavioral Assessment. 41(2). 271–279. 10 indexed citations
7.
Olafsson, Ragnar, et al.. (2016). Mat á alvarleika áráttu- og þráhyggjueinkenna með DOCS spurningalistanum. Hirsla (Landspítali University Hospital).
8.
Olafsson, Ragnar, et al.. (2014). Replacing intrusive thoughts: Investigating thought control in relation to OCD symptoms. Journal of Behavior Therapy and Experimental Psychiatry. 45(4). 506–515. 9 indexed citations
9.
Li, Qian, Ragnar Olafsson, Pier Ingram, Zhaohui Wang, & Russell S. Witte. (2012). Measuring the acoustoelectric interaction constant using ultrasound current source density imaging. Physics in Medicine and Biology. 57(19). 5929–5941. 41 indexed citations
10.
Olafsson, Ragnar, et al.. (2012). Real-time photoacoustic and ultrasound imaging: a simple solution for clinical ultrasound systems with linear arrays. Physics in Medicine and Biology. 58(1). N1–N12. 74 indexed citations
11.
Olafsson, Ragnar, et al.. (2011). Self reported attentional control with the Attentional Control Scale: Factor structure and relationship with symptoms of anxiety and depression. Journal of Anxiety Disorders. 25(6). 777–782. 115 indexed citations
12.
Snorrason, Ívar, Jakob Smári, & Ragnar Olafsson. (2011). Motor Inhibition, Reflection Impulsivity, and Trait Impulsivity in Pathological Skin Picking. Behavior Therapy. 42(3). 521–532. 45 indexed citations
13.
Olafsson, Ragnar, et al.. (2010). Real-time, contrast enhanced photoacoustic imaging of cancer in a mouse window chamber. Optics Express. 18(18). 18625–18625. 42 indexed citations
14.
Jia, Congxian, Ragnar Olafsson, Sheng‐Wen Huang, et al.. (2010). Comparison of 2-D speckle tracking and tissue Doppler imaging in an isolated rabbit heart model. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control. 57(11). 2491–2502. 22 indexed citations
15.
Jia, Congxian, Ragnar Olafsson, Kang Kim, et al.. (2009). Two-Dimensional Strain Imaging of Controlled Rabbit Hearts. Ultrasound in Medicine & Biology. 35(9). 1488–1501. 24 indexed citations
16.
Huang, Sheng-Wen, et al.. (2008). Analysis of correlation coefficient filtering in elasticity imaging. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control. 55(11). 2426–2441. 11 indexed citations
17.
Olafsson, Ragnar, Russell S. Witte, Sheng‐Wen Huang, & Matthew O’Donnell. (2008). Ultrasound Current Source Density Imaging. IEEE Transactions on Biomedical Engineering. 55(7). 1840–1848. 76 indexed citations
18.
Krijn, Merel, Paul M.G. Emmelkamp, Ragnar Olafsson, Martijn J. Schuemie, & Charles A.P.G. van der Mast. (2007). Do Self-Statements Enhance the Effectiveness of Virtual Reality Exposure Therapy? A Comparative Evaluation in Acrophobia. CyberPsychology & Behavior. 10(3). 362–370. 40 indexed citations
19.
Witte, Russell S., Ragnar Olafsson, & M. O’Donnell. (2006). 1A-4 Acoustoelectric Detection of Current Flow in a Neural Recording Chamber. 6147. 5–8. 9 indexed citations
20.
Krijn, Merel, et al.. (2004). Virtual reality exposure therapy of anxiety disorders: A review. Clinical Psychology Review. 24(3). 259–281. 339 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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