Karen Frei

2.7k total citations
38 papers, 1.3k citations indexed

About

Karen Frei is a scholar working on Neurology, Cellular and Molecular Neuroscience and Physiology. According to data from OpenAlex, Karen Frei has authored 38 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Neurology, 8 papers in Cellular and Molecular Neuroscience and 8 papers in Physiology. Recurrent topics in Karen Frei's work include Neurological disorders and treatments (14 papers), Parkinson's Disease Mechanisms and Treatments (14 papers) and Botulinum Toxin and Related Neurological Disorders (10 papers). Karen Frei is often cited by papers focused on Neurological disorders and treatments (14 papers), Parkinson's Disease Mechanisms and Treatments (14 papers) and Botulinum Toxin and Related Neurological Disorders (10 papers). Karen Frei collaborates with scholars based in United States, Germany and Poland. Karen Frei's co-authors include Daniel Truong, Raphael Schiffmann, Gheona Altarescu, Kevin E. Crutchfield, Norman W. Barton, Nicholas J. Patronas, Tapas Kumar Banerjee, James M. Dambrosia, N Patronas and Ehud Goldin and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and Neurology.

In The Last Decade

Karen Frei

36 papers receiving 1.2k citations

Peers

Karen Frei

NEURO

PHYSI

CMN

Stephen Mullin United Kingdom

Morten Blaabjerg Denmark

Allison Reid Canada

Christopher Kenney United States

Giovanna Levandis Italy

Gholam Ali Shahidi Iran

Raquel Durán Spain

Prasant Chandran United States

Myungjin Jo South Korea

Ying Zang China

Stephen Mullin United Kingdom

Karen Frei

566 ×1.0

NEURO

396 ×1.1

PHYSI

38 ×0.2

PHYSI

219 ×1.0

CMN

176 ×0.8

Citations per year, relative to Karen Frei Karen Frei (= 1×) peers Stephen Mullin

Countries citing papers authored by Karen Frei

Since Specialization

Citations

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

Fields of papers citing papers by Karen Frei

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karen Frei

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Frei, Karen, et al.. (2024). Comparative Analysis of Deutetrabenazine and Valbenazine as VMAT2 Inhibitors for Tardive Dyskinesia: A Systematic Review. Tremor and Other Hyperkinetic Movements. 14(1). 13–13. 11 indexed citations

Frei, Karen & Daniel Truong. (2022). Medications used to treat tremors. Journal of the Neurological Sciences. 435. 120194–120194. 13 indexed citations

Bhidayasiri, Roongroj, John M. Kane, Karen Frei, et al.. (2020). Expanding phenomenologic heterogeneity of tardive syndromes: Time for an updated assessment tool. Parkinsonism & Related Disorders. 77. 141–145. 6 indexed citations

Frei, Karen. (2020). Abnormalities of smooth pursuit in Parkinson’s disease: A systematic review. Clinical Parkinsonism & Related Disorders. 4. 100085–100085. 22 indexed citations

Frei, Karen, et al.. (2020). The effects of Cannabis on hallucinations in Parkinson's disease patients. Journal of the Neurological Sciences. 419. 117206–117206. 2 indexed citations

Truong, Daniel & Karen Frei. (2018). Setting the record straight: The nosology of tardive syndromes. Parkinsonism & Related Disorders. 59. 146–150. 14 indexed citations

Frei, Karen, et al.. (2018). Levodopa-induced dyskinesia: clinical features, incidence, and risk factors. Journal of Neural Transmission. 125(8). 1109–1117. 107 indexed citations

Frei, Karen. (2018). Tardive dyskinesia: Who gets it and why. Parkinsonism & Related Disorders. 59. 151–154. 30 indexed citations

Frei, Karen & Daniel Truong. (2017). Hallucinations and the spectrum of psychosis in Parkinson's disease. Journal of the Neurological Sciences. 374. 56–62. 22 indexed citations

10.

Frei, Karen. (2017). Posttraumatic dystonia. Journal of the Neurological Sciences. 379. 183–191. 16 indexed citations

11.

Dashtipour, Khashayar, et al.. (2015). Correlation between Unified Parkinson’s Disease Rating Scale and Global Impression of Change Scales (P1.198). Neurology. 84(14_supplement). 1 indexed citations

12.

Vemula, Satya R., Andreas Puschmann, Jianfeng Xiao, et al.. (2013). Role of Gα(olf) in familial and sporadic adult-onset primary dystonia. Human Molecular Genetics. 22(12). 2510–2519. 74 indexed citations

13.

Chou, Kelvin L., Melissa M. Amick, Jason Brandt, et al.. (2010). A recommended scale for cognitive screening in clinical trials of Parkinson's disease. Movement Disorders. 25(15). 2501–2507. 136 indexed citations

14.

Xiao, Jianfeng, Robert W. Bastian, Joel S. Perlmutter, et al.. (2009). High-throughput mutational analysis of TOR1A in primary dystonia. BMC Medical Genetics. 10(1). 24–24. 26 indexed citations

15.

Frei, Karen & Daniel Truong. (2008). Hemifacial spasm producing tremor-like movements of the head. Journal of the Neurological Sciences. 273(1-2). 133–134. 1 indexed citations

16.

Frei, Karen, Daniel Truong, & Dirk Dressler. (2006). Botulinum toxin therapy of hemifacial spasm: comparing different therapeutic preparations. European Journal of Neurology. 13(s1). 30–35. 36 indexed citations

17.

Frei, Karen, et al.. (2006). Molecular defects of the dystonia-causing torsinA mutation. Neuroreport. 17(16). 1725–1728. 22 indexed citations

18.

Frei, Karen, et al.. (2004). Natural history of posttraumatic cervical dystonia. Movement Disorders. 19(12). 1492–1498. 20 indexed citations

19.

Frei, Karen & Raphael Schiffmann. (2002). Myoclonus in Gaucher disease.. PubMed. 89. 41–8. 9 indexed citations

20.

Siegel, Heidi E., et al.. (1998). Electroencephalographic findings in patients with mucolipidosis type IV. Electroencephalography and Clinical Neurophysiology. 106(5). 400–403. 8 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