Fritjof Helmchen

30.1k total citations · 4 hit papers
162 papers, 20.2k citations indexed

About

Fritjof Helmchen is a scholar working on Cellular and Molecular Neuroscience, Cognitive Neuroscience and Molecular Biology. According to data from OpenAlex, Fritjof Helmchen has authored 162 papers receiving a total of 20.2k indexed citations (citations by other indexed papers that have themselves been cited), including 112 papers in Cellular and Molecular Neuroscience, 87 papers in Cognitive Neuroscience and 36 papers in Molecular Biology. Recurrent topics in Fritjof Helmchen's work include Neural dynamics and brain function (75 papers), Neuroscience and Neuropharmacology Research (66 papers) and Neuroscience and Neural Engineering (41 papers). Fritjof Helmchen is often cited by papers focused on Neural dynamics and brain function (75 papers), Neuroscience and Neuropharmacology Research (66 papers) and Neuroscience and Neural Engineering (41 papers). Fritjof Helmchen collaborates with scholars based in Switzerland, Germany and United States. Fritjof Helmchen's co-authors include Winfried Denk, Axel Nimmerjahn, Frank Kirchhoff, Bert Sakmann, Jason N. D. Kerr, Werner Göbel, Jack Waters, David W. Tank, Fabian F. Voigt and J. Gerard G. Borst and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Fritjof Helmchen

161 papers receiving 19.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Resting Microglial Cells Are Highly Dynamic Surveillants of Brain Parenchyma in Vivo

2005 4.4k citations Axel Nimmerjahn, Frank Kirchhoff et al. Science profile →
Deep tissue two-photon microscopy

2005 3.1k citations Fritjof Helmchen, Winfried Denk profile →
Fluctuations and stimulus-induced changes in blood flow observed in individual capillaries in layers 2 through 4 of rat neocortex

1998 635 citations Fritjof Helmchen, Winfried Denk et al. Proceedings of the National Academy of Sciences profile →
Sulforhodamine 101 as a specific marker of astroglia in the neocortex in vivo

2004 634 citations Axel Nimmerjahn, Frank Kirchhoff et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Fritjof Helmchen Switzerland	62	8.7k	5.6k	4.9k	4.4k	4.3k	162	20.2k
Jeff W. Lichtman United States	73	10.5k 1.2×	2.7k 0.5×	1.9k 0.4×	4.1k 0.9×	10.6k 2.5×	222	24.1k
Viviana Gradinaru United States	54	8.3k 1.0×	4.3k 0.8×	1.9k 0.4×	2.0k 0.5×	7.7k 1.8×	112	20.0k
Edward S. Boyden United States	70	12.9k 1.5×	7.4k 1.3×	1.9k 0.4×	3.4k 0.8×	6.6k 1.5×	230	23.3k
Loren L. Looger United States	62	10.8k 1.2×	5.3k 0.9×	1.3k 0.3×	3.5k 0.8×	8.9k 2.1×	141	21.0k
Pierre J. Magistretti Switzerland	89	14.6k 1.7×	4.1k 0.7×	6.5k 1.3×	1.7k 0.4×	13.0k 3.0×	423	35.3k
Daniel Choquet France	78	9.0k 1.0×	1.9k 0.3×	1.2k 0.2×	2.1k 0.5×	9.2k 2.1×	183	17.6k
Winfried Denk Germany	68	9.4k 1.1×	5.1k 0.9×	1.3k 0.3×	10.3k 2.4×	7.5k 1.7×	126	29.5k
Stephen J Smith United States	71	13.3k 1.5×	3.2k 0.6×	4.8k 1.0×	1.2k 0.3×	11.5k 2.7×	157	25.5k
Karel Svoboda United States	105	28.5k 3.3×	19.3k 3.4×	3.4k 0.7×	5.9k 1.4×	13.4k 3.1×	192	47.7k
Hongkui Zeng United States	58	6.9k 0.8×	4.5k 0.8×	1.6k 0.3×	1.3k 0.3×	6.6k 1.5×	128	16.6k

Countries citing papers authored by Fritjof Helmchen

Since Specialization

Citations

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

Fields of papers citing papers by Fritjof Helmchen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Fritjof Helmchen

This figure shows the co-authorship network connecting the top 25 collaborators of Fritjof Helmchen. A scholar is included among the top collaborators of Fritjof Helmchen 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 Fritjof Helmchen. Fritjof Helmchen 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

1.

Groos, Dominik, Peter Rupprecht, Tevye Jason Stachniak, et al.. (2025). A distinct hypothalamus–habenula circuit governs risk preference. Nature Neuroscience. 28(2). 361–373. 1 indexed citations

2.

Mittag, Manuel, Peter Rupprecht, Fritjof Helmchen, et al.. (2024). Aberrant hippocampal Ca2+ microwaves following synapsin-dependent adeno-associated viral expression of Ca2+ indicators. eLife. 13. 2 indexed citations

3.

Mittag, Manuel, Peter Rupprecht, Fritjof Helmchen, et al.. (2024). Aberrant hippocampal Ca2+ microwaves following synapsin-dependent adeno-associated viral expression of Ca2+ indicators. eLife. 13. 2 indexed citations

4.

Voigt, Fabian F., Thomas Naert, Sven Hildebrand, et al.. (2023). Reflective multi-immersion microscope objectives inspired by the Schmidt telescope. Nature Biotechnology. 42(1). 65–71. 10 indexed citations

5.

Wilhelm, Maria, Yaroslav Sych, Chris Lewis, et al.. (2023). Striatum-projecting prefrontal cortex neurons support working memory maintenance. Nature Communications. 14(1). 11 indexed citations

6.

Marmor, Odeya, et al.. (2023). History information emerges in the cortex during learning. eLife. 12. 3 indexed citations

7.

Kirschenbaum, Daniel S., Fabian F. Voigt, Hamid Shirani, et al.. (2022). Whole‐brain microscopy reveals distinct temporal and spatial efficacy of anti‐Aβ therapies. EMBO Molecular Medicine. 15(1). e16789–e16789. 6 indexed citations

8.

Grandjean, Joanes, Martin C. Kahn, A. Louise Upton, et al.. (2021). Author Correction: A brain-wide functional map of the serotonergic responses to acute stress and fluoxetine. Nature Communications. 12(1). 1168–1168. 1 indexed citations

9.

Zerbi, Valerio, Marco Pagani, Marija Markicevic, et al.. (2021). Brain mapping across 16 autism mouse models reveals a spectrum of functional connectivity subtypes. Molecular Psychiatry. 26(12). 7610–7620. 57 indexed citations

10.

Rupprecht, Peter, Stefano Carta, Antonin Blot, et al.. (2021). A database and deep learning toolbox for noise-optimized, generalized spike inference from calcium imaging. Nature Neuroscience. 24(9). 1324–1337. 64 indexed citations

11.

Markicevic, Marija, Ben Fulcher, Chris Lewis, et al.. (2020). Cortical Excitation:Inhibition Imbalance Causes Abnormal Brain Network Dynamics as Observed in Neurodevelopmental Disorders. Cerebral Cortex. 30(9). 4922–4937. 49 indexed citations

12.

Frezel, Noémie, Fabian F. Voigt, José Marı́a Mateos, et al.. (2020). In-Depth Characterization of Layer 5 Output Neurons of the Primary Somatosensory Cortex Innervating the Mouse Dorsal Spinal Cord. Cerebral Cortex Communications. 1(1). tgaa052–tgaa052. 10 indexed citations

13.

Ineichen, Christian, et al.. (2020). Basomedial amygdala activity in mice reflects specific and general aversion uncontrollability. European Journal of Neuroscience. 55(9-10). 2435–2454. 14 indexed citations

14.

Muir, Dylan R., et al.. (2017). Specific excitatory connectivity for feature integration in mouse primary visual cortex. PLoS Computational Biology. 13(12). e1005888–e1005888. 6 indexed citations

15.

Bourg, Alexander van der, Jenq‐Wei Yang, Vicente Reyes‐Puerta, et al.. (2016). Layer-Specific Refinement of Sensory Coding in Developing Mouse Barrel Cortex. Cerebral Cortex. 27(10). 4835–4850. 63 indexed citations

16.

Helmchen, Fritjof & Mark Hübener. (2013). Neuronal networks in the spotlight: deciphering cellular activity patterns with fluorescent proteins. [Neuronale Netzwerke im Rampenlicht: Mit leuchtenden Proteinen zelluläre Aktivitätsmuster entschlüsseln]. MPG.PuRe (Max Planck Society). 19(2). 47–55. 1 indexed citations

17.

Göbel, Werner & Fritjof Helmchen. (2007). New Angles on Neuronal Dendrites In Vivo. Journal of Neurophysiology. 98(6). 3770–3779. 60 indexed citations

18.

Kerr, Jason N. D., David S. Greenberg, & Fritjof Helmchen. (2005). Imaging input and output of neocortical networks in vivo. Proceedings of the National Academy of Sciences. 102(39). 14063–14068. 351 indexed citations

19.

Nimmerjahn, Axel, Frank Kirchhoff, & Fritjof Helmchen. (2005). Resting Microglial Cells Are Highly Dynamic Surveillants of Brain Parenchyma in Vivo. Science. 308(5726). 1314–1318. 4396 indexed citations breakdown →

20.

Helmchen, Fritjof & Winfried Denk. (2002). New developments in multiphoton microscopy. Current Opinion in Neurobiology. 12(5). 593–601. 109 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