Timo Grimmer

9.7k total citations · 2 hit papers
158 papers, 5.9k citations indexed

About

Timo Grimmer is a scholar working on Psychiatry and Mental health, Physiology and Cognitive Neuroscience. According to data from OpenAlex, Timo Grimmer has authored 158 papers receiving a total of 5.9k indexed citations (citations by other indexed papers that have themselves been cited), including 97 papers in Psychiatry and Mental health, 84 papers in Physiology and 49 papers in Cognitive Neuroscience. Recurrent topics in Timo Grimmer's work include Dementia and Cognitive Impairment Research (94 papers), Alzheimer's disease research and treatments (81 papers) and Functional Brain Connectivity Studies (39 papers). Timo Grimmer is often cited by papers focused on Dementia and Cognitive Impairment Research (94 papers), Alzheimer's disease research and treatments (81 papers) and Functional Brain Connectivity Studies (39 papers). Timo Grimmer collaborates with scholars based in Germany, United Kingdom and United States. Timo Grimmer's co-authors include Alexander Drzezga, Alexander Kurz, Robert Perneczky, Hans Förstl, Christian Sorg, Janine Diehl‐Schmid, Janine Diehl, Markus J. Riemenschneider, Alexander Kurz and Stefan Wagenpfeil and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Neuroscience and SHILAP Revista de lepidopterología.

In The Last Decade

Timo Grimmer

153 papers receiving 5.8k citations

Hit Papers

Mapping Scores Onto Stages: Mini-Mental State Examination... 2006 2026 2012 2019 2006 2023 100 200 300 400 500

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Timo Grimmer Germany 42 2.9k 2.6k 1.9k 1.2k 765 158 5.9k
Robert Perneczky Germany 47 3.5k 1.2× 3.1k 1.2× 1.7k 0.9× 1.0k 0.8× 1.0k 1.3× 200 7.2k
Ozioma C. Okonkwo United States 54 3.8k 1.3× 2.8k 1.1× 2.0k 1.1× 1.2k 1.0× 909 1.2× 229 9.1k
Merja Hallikainen Finland 38 3.3k 1.1× 2.7k 1.0× 1.5k 0.8× 816 0.7× 1.0k 1.3× 79 6.2k
Pierrick Bourgeat Australia 37 3.4k 1.2× 3.7k 1.4× 1.6k 0.9× 1.6k 1.3× 1.1k 1.5× 229 7.2k
Aaron P. Schultz United States 50 3.6k 1.2× 3.3k 1.2× 3.0k 1.6× 1.4k 1.1× 972 1.3× 157 7.0k
Kerryn E. Pike Australia 24 3.2k 1.1× 3.0k 1.1× 1.6k 0.8× 800 0.6× 710 0.9× 82 5.1k
Ronald Petersen United States 31 3.1k 1.1× 2.9k 1.1× 1.6k 0.8× 957 0.8× 1.0k 1.3× 67 6.4k
Greg Savage Australia 35 3.0k 1.0× 2.2k 0.8× 2.1k 1.1× 741 0.6× 710 0.9× 137 5.7k
Brian A. Gordon United States 33 2.4k 0.8× 2.6k 1.0× 1.6k 0.8× 785 0.6× 780 1.0× 159 5.2k
Adam Fleisher United States 48 3.8k 1.3× 3.9k 1.5× 2.5k 1.3× 1.6k 1.3× 905 1.2× 121 7.8k

Countries citing papers authored by Timo Grimmer

Since Specialization
Citations

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

Fields of papers citing papers by Timo Grimmer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Timo Grimmer

This figure shows the co-authorship network connecting the top 25 collaborators of Timo Grimmer. A scholar is included among the top collaborators of Timo Grimmer 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 Timo Grimmer. Timo Grimmer 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.
Manuilova, Ekaterina, et al.. (2025). Elecsys CSF AD immunoassays: Sample stability for a new pre‐analytical protocol for fresh CSF. Alzheimer s & Dementia. 21(10). e70797–e70797.
2.
Mueller, Karsten, Nico Scherf, Timo Grimmer, et al.. (2025). Criminal Behavior in Frontotemporal Dementia: A Multimodal MRI Study. Human Brain Mapping. 46(11). e70308–e70308. 2 indexed citations
3.
Perneczky, Robert, Niels Hansen, Anna Hofmann, et al.. (2024). Blood-Based Biomarkers for Early Alzheimer’s Disease Diagnosis in Real-World Settings. Methods in molecular biology. 2785. 3–14. 5 indexed citations
4.
Goldhardt, Oliver, Hans Förstl, Dennis M. Hedderich, et al.. (2023). Head‐to‐head comparison of CSF AD biomarker assays: fully‐automated high‐throughput platforms (ECLIA and CLEIA) vs ELISA. Alzheimer s & Dementia. 19(S24).
5.
Oeckl, Patrick, Sarah Anderl‐Straub, Christine A. F. Von Arnim, et al.. (2022). Serum GFAP differentiates Alzheimer’s disease from frontotemporal dementia and predicts MCI-to-dementia conversion. Journal of Neurology Neurosurgery & Psychiatry. 93(6). 659–667. 64 indexed citations
6.
Yakushev, Igor, Min Wang, Alexandre Savio, et al.. (2021). Mapping covariance in brain FDG uptake to structural connectivity. European Journal of Nuclear Medicine and Molecular Imaging. 49(4). 1288–1297. 10 indexed citations
7.
Ortner, Marion, Christine Hauser, Christoph Schmaderer, et al.. (2019). <p>Decreased Vascular Pulsatility in Alzheimer’s Disease Dementia Measured by Transcranial Color-Coded Duplex Sonography</p>. Neuropsychiatric Disease and Treatment. Volume 15. 3487–3499. 4 indexed citations
8.
Altomare, Daniele, Clarissa Ferrari, Anna Caroli, et al.. (2019). Prognostic value of Alzheimer’s biomarkers in mild cognitive impairment: the effect of age at onset. Journal of Neurology. 266(10). 2535–2545. 11 indexed citations
9.
Ortner, Marion, Oliver Goldhardt, Janine Diehl‐Schmid, et al.. (2019). Amyloid PET, FDG-PET or MRI? - the power of different imaging biomarkers to detect progression of early Alzheimer’s disease. BMC Neurology. 19(1). 264–264. 16 indexed citations
10.
Kotliar, Konstantin, Christine Hauser, Marion Ortner, et al.. (2018). Does internal microstructure of retinal arteries change in Alzheimer disease. Investigative Ophthalmology & Visual Science. 59(9). 1583–1583. 2 indexed citations
11.
Kotliar, Konstantin, et al.. (2017). Dynamic retinal arterial and venous oscillations are changed in Alzheimer’s disease. Investigative Ophthalmology & Visual Science. 58(8). 1256–1256. 1 indexed citations
12.
Franzmeier, Nicolai, Jens Göttler, Timo Grimmer, et al.. (2017). Resting-State Connectivity of the Left Frontal Cortex to the Default Mode and Dorsal Attention Network Supports Reserve in Mild Cognitive Impairment. Frontiers in Aging Neuroscience. 9. 264–264. 70 indexed citations
13.
Thompson, Garth J., Valentin Riedl, Timo Grimmer, et al.. (2016). The Whole-Brain “Global” Signal from Resting State fMRI as a Potential Biomarker of Quantitative State Changes in Glucose Metabolism. Brain Connectivity. 6(6). 435–447. 67 indexed citations
14.
Grimmer, Timo, Panagiotis Alexopoulos, Alexander Drzezga, et al.. (2015). Visual Versus Fully Automated Analyses of 18F-FDG and Amyloid PET for Prediction of Dementia Due to Alzheimer Disease in Mild Cognitive Impairment. Journal of Nuclear Medicine. 57(2). 204–207. 44 indexed citations
15.
Pasquini, Lorenzo, Claudia Plant, Marion Ortner, et al.. (2014). Intrinsic Brain Activity of Cognitively Normal Older Persons Resembles More That of Patients Both with and at Risk for Alzheimer's Disease Than That of Healthy Younger Persons. Brain Connectivity. 4(5). 323–336. 2 indexed citations
16.
Sabri, Osama, Amane Tateno, Alexander Drzezga, et al.. (2011). Global phase 2b efficacy and safety trial of florbetaben for beta-amyloid brain positron emission tomography in Alzheimer's disease. UCL Discovery (University College London). 1 indexed citations
17.
Förster, Stefan, Timo Grimmer, Isabelle Miederer, et al.. (2011). Regional Expansion of Hypometabolism in Alzheimer's Disease Follows Amyloid Deposition with Temporal Delay. Biological Psychiatry. 71(9). 792–797. 75 indexed citations
18.
Alexopoulos, Panagiotis, Christian Sorg, Annette Förschler, et al.. (2011). Perfusion abnormalities in mild cognitive impairment and mild dementia in Alzheimer’s disease measured by pulsed arterial spin labeling MRI. European Archives of Psychiatry and Clinical Neuroscience. 262(1). 69–77. 99 indexed citations
19.
Perneczky, Robert, Stefan Wagenpfeil, Katja Komossa, et al.. (2006). Mapping Scores Onto Stages: Mini-Mental State Examination and Clinical Dementia Rating. American Journal of Geriatric Psychiatry. 14(2). 139–144. 525 indexed citations breakdown →
20.
Drzezga, Alexander, Timo Grimmer, Stephan G. Nekolla, et al.. (2003). Differences of cerebral activation between healthy volunteers and patients with MCI and Alzheimer's disease during navigation in a virtual reality environment. An O15-water PET activation study.. mediaTUM (Technical University of Munich). 1 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

Rankless by CCL
2026