Timo Grimmer

9.7k citations

158 papers · 5.9k indexed · 2 hit papers · h-index 42

Impact in

Psychiatry and Mental health top 0.2%
- Dementia and Cognitive Impairment Research
Physiology top 0.5%
- Alzheimer's disease research and treatments

Papers in ⓘ

Psychiatry and Mental health 97
- Dementia and Cognitive Impairment Research 94
Physiology 84
- Alzheimer's disease research and treatments 81

Co-authors: Alexander Drzezga (57 shared papers)Alexander Kurz (45 shared papers)Robert Perneczky (38 shared papers)Hans Förstl (52 shared papers)Christian Sorg (36 shared papers)Janine Diehl‐Schmid (49 shared papers)Janine Diehl (5 shared papers)Markus J. Riemenschneider (8 shared papers)
Journals: Alzheimer s & Dementia (18 papers)Journal of Alzheimer s Disease (10 papers)Journal of Nuclear Medicine (7 papers)Neurobiology of Aging (6 papers)Dementia and Geriatric Cognitive Disorders (6 papers)
Partner nations: Germany United Kingdom United States

In The Last Decade

Timo Grimmer

153 papers receiving 5.8k citations

Hit Papers

align trajectories log scale

Anti-amyloid antibody therapies in Alzheimer’s disease 2023 · 111 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2023 Brain
2006 American Journal of Geriatric Psychiatry

Peers

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-authors

The 25 scholars most cited alongside Timo Grimmer, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Timo Grimmer Line = papers co-authored together Timo Grimmer links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 158 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Mapping Scores Onto Stages: Mini-Mental State Examination and Clinical Dementia Rating American Journal of Geriatric Psychiatry ·Robert Perneczky, Stefan Wagenpfeil, Katja Komossa, Timo Grimmer, Janine Diehl, Alexander Kurz Hit paper breakdown →	2006	525
2	Glial Fibrillary Acidic Protein in Serum is Increased in Alzheimer’s Disease and Correlates with Cognitive Impairment Journal of Alzheimer s Disease ·Patrick Oeckl, Steffen Halbgebauer, Sarah Anderl‐Straub, Petra Steinacker, André Huss, Hermann Neugebauer, Christine A. F. Von Arnim, Janine Diehl‐Schmid, Timo Grimmer, Johannes Kornhuber, Piotr Lewczuk, Adrian Danek, Albert C. Ludolph, Markus Otto	2018	220
3	Prediction of individual clinical outcome in MCI by means of genetic assessment and (18)F-FDG PET. PubMed ·Alexander Drzezga, Timo Grimmer, Markus J. Riemenschneider, Nicola T. Lautenschlager, Hartwig Siebner, Panagiotis Alexopoulus, Satoshi Minoshima, Markus Schwaiger, Alexander Kurz	2005	217
4	Beta Amyloid in Alzheimer's Disease: Increased Deposition in Brain Is Reflected in Reduced Concentration in Cerebrospinal Fluid Biological Psychiatry ·Timo Grimmer, Markus J. Riemenschneider, Hans Förstl, Gjermund Henriksen, William E. Klunk, Chester A. Mathis, Tohru Shiga, Hans‐Jürgen Wester, Alexander Kurz, Alexander Drzezga	2009	214
5	Effect ofAPOEgenotype on amyloid plaque load and gray matter volume in Alzheimer disease Neurology ·Alexander Drzezga, Timo Grimmer, G. Henriksen, Mark Mühlau, Robert Perneczky, Isabelle Miederer, C. Praus, Christian Sorg, A.M. Wohlschläger, Markus J. Riemenschneider, H. J. Wester, Hans Foerstl, Markus Schwaiger, Alexander Kurz	2009	198
6	Impairment of activities of daily living requiring memory or complex reasoning as part of the MCI syndrome International Journal of Geriatric Psychiatry ·Robert Perneczky, Corina Pohl, Christian Sorg, Julia Hartmann, Natasa Tosic, Timo Grimmer, Sandra Heitele, Alexander Kurz	2006	184
7	Cerebral metabolic patterns at early stages of frontotemporal dementia and semantic dementia. A PET study Neurobiology of Aging ·Janine Diehl, Timo Grimmer, Alexander Drzezga, Markus J. Riemenschneider, Hans Förstl, Alexander Kurz	2004	155
8	Imaging of amyloid plaques and cerebral glucose metabolism in semantic dementia and Alzheimer’s disease NeuroImage ·Alexander Drzezga, Timo Grimmer, Gjermund Henriksen, Isabelle Stangier, Robert Perneczky, Janine Diehl‐Schmid, Chester A. Mathis, William E. Klunk, Julie C. Price, Steven T. DeKosky	2007	155
9	Decline of cerebral glucose metabolism in frontotemporal dementia: a longitudinal 18F-FDG-PET-study Neurobiology of Aging ·Janine Diehl‐Schmid, Timo Grimmer, Alexander Drzezga, Susanne Bornschein, Markus J. Riemenschneider, Hans Förstl, Markus Schwaiger, Alexander Kurz	2006	152
10	Local Activity Determines Functional Connectivity in the Resting Human Brain: A Simultaneous FDG-PET/fMRI Study Journal of Neuroscience ·Valentin Riedl, Katarzyna Bienkowska, Carola Strobel, Masoud Tahmasian, Timo Grimmer, Stefan Förster, Karl Friston, Christian Sorg, Alexander Drzezga	2014	143
11	Progression to Dementia in Clinical Subtypes of Mild Cognitive Impairment Dementia and Geriatric Cognitive Disorders ·Panagiotis Alexopoulos, Timo Grimmer, Robert Perneczky, Gregor Domes, Alexander Kurz	2006	130
12	Anti-amyloid antibody therapies in Alzheimer’s disease Brain ·Robert Perneczky, Frank Jessen, Timo Grimmer, Johannes Levin, Agnes Flöel, Oliver Peters, Lutz Froelich Hit paper breakdown →	2023	111
13	Within-patient correspondence of amyloid-β and intrinsic network connectivity in Alzheimer’s disease Brain ·Nicholas E. Myers, Lorenzo Pasquini, Jens Göttler, Timo Grimmer, Kathrin Koch, Marion Ortner, Julia Neitzel, Mark Mühlau, Stefan Förster, Alexander Kurz, Hans Förstl, Claus Zimmer, Afra M. Wohlschläger, Valentin Riedl, Alexander Drzezga, Christian Sorg	2014	105
14	White matter hyperintensities predict amyloid increase in Alzheimer's disease Neurobiology of Aging ·Timo Grimmer, Maximilian Faust, Florian Auer, Panagiotis Alexopoulos, Hans Förstl, Gjermund Henriksen, Robert Perneczky, Christian Sorg, Behrooz H. Yousefi, Alexander Drzezga, Alexander Kurz	2012	104
15	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 ·Panagiotis Alexopoulos, Christian Sorg, Annette Förschler, Timo Grimmer, Μαρία Σκώκου, Afra M. Wohlschläger, Robert Perneczky, Claus Zimmer, Alexander Kurz, Christine Preibisch	2011	99
16	Cerebral glucose metabolism in patients with AD and different APOE genotypes Neurology ·Alexander Drzezga, Markus J. Riemenschneider, Bernd Straßner, Timo Grimmer, Martin Peller, Abraham Knoll, Stefan Wagenpfeil, Satoshi Minoshima, Markus Schwaiger, Alexander Kurz	2005	98
17	Safety, tolerability and efficacy of the glutaminyl cyclase inhibitor PQ912 in Alzheimer’s disease: results of a randomized, double-blind, placebo-controlled phase 2a study Alzheimer s Research & Therapy ·Philip Scheltens, Merja Hallikainen, Timo Grimmer, Thomas Duning, Alida A. Gouw, Charlotte E. Teunissen, Alle Meije Wink, Paul Maruff, John Harrison, Caroline M van Baal, Suzanne Bruins, Inge Lues, Niels D. Prins	2018	92
18	Metabolic connectivity mapping reveals effective connectivity in the resting human brain Proceedings of the National Academy of Sciences ·Valentin Riedl, Lukas Utz, Gabriel Castrillón, Timo Grimmer, Josef P. Rauschecker, Markus Ploner, Karl Friston, Alexander Drzezga, Christian Sorg	2015	88
19	The lower hippocampus global connectivity, the higher its local metabolism in Alzheimer disease Neurology ·Masoud Tahmasian, Lorenzo Pasquini, Martin Scherr, Chun Meng, Stefan Förster, Satja Mulej Bratec, Kuangyu Shi, Igor Yakushev, Markus Schwaiger, Timo Grimmer, Janine Diehl‐Schmid, Valentin Riedl, Christian Sorg, Alexander Drzezga	2015	82
20	Regional Expansion of Hypometabolism in Alzheimer's Disease Follows Amyloid Deposition with Temporal Delay Biological Psychiatry ·Stefan Förster, Timo Grimmer, Isabelle Miederer, Gjermund Henriksen, Behrooz H. Yousefi, Philipp Graner, Hans‐Jürgen Wester, Hans Förstl, Alexander Kurz, Bradford C. Dickerson, Peter Bartenstein, Alexander Drzezga	2011	75

About Timo Grimmer

Timo Grimmer is a scholar working on Psychiatry and Mental health, Physiology, Cognitive Neuroscience, Radiology, Nuclear Medicine and Imaging and Molecular Biology, having authored 158 papers that have together received 5.9k indexed citations. Recurring topics across this work include Dementia and Cognitive Impairment Research (94 papers), Alzheimer's disease research and treatments (81 papers), Functional Brain Connectivity Studies (39 papers), Advanced Neuroimaging Techniques and Applications (21 papers), Advanced MRI Techniques and Applications (15 papers), Neural dynamics and brain function (11 papers), S100 Proteins and Annexins (10 papers) and Health Systems, Economic Evaluations, Quality of Life (9 papers). The work is most often cited by research in Psychiatry and Mental health (2.9k citations), Physiology (2.6k citations), Cognitive Neuroscience (1.9k citations), Neurology (765 citations) and Geriatrics and Gerontology (218 citations). Timo Grimmer has collaborated with scholars based in Germany, United Kingdom and United States. Frequent 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. Their work appears in journals such as Alzheimer s & Dementia, Journal of Alzheimer s Disease, Journal of Nuclear Medicine, Neurobiology of Aging and Dementia and Geriatric Cognitive Disorders.

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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