Helmut J. Koester

2.4k total citations · 1 hit paper
12 papers, 1.9k citations indexed

About

Helmut J. Koester is a scholar working on Cellular and Molecular Neuroscience, Cognitive Neuroscience and Molecular Biology. According to data from OpenAlex, Helmut J. Koester has authored 12 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Cellular and Molecular Neuroscience, 9 papers in Cognitive Neuroscience and 5 papers in Molecular Biology. Recurrent topics in Helmut J. Koester's work include Neural dynamics and brain function (8 papers), Neuroscience and Neuropharmacology Research (8 papers) and Neuroscience and Neural Engineering (7 papers). Helmut J. Koester is often cited by papers focused on Neural dynamics and brain function (8 papers), Neuroscience and Neuropharmacology Research (8 papers) and Neuroscience and Neural Engineering (7 papers). Helmut J. Koester collaborates with scholars based in United States, Germany and Poland. Helmut J. Koester's co-authors include Bert Sakmann, Jackie Schiller, Guy Major, Yitzhak Schiller, Daniel Johnston, Rainer Uhl, Stefan W. Hell, Daniele Zink, Marion Cremer and Irina Solovei and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Helmut J. Koester

12 papers receiving 1.8k citations

Hit Papers

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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.

NMDA spikes in basal dendrites of cortical pyramidal neurons

2000 513 citations Jackie Schiller, Guy Major et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Helmut J. Koester United States	9	1.4k	988	664	219	213	12	1.9k
Mark T. Harnett United States	13	1.4k 1.0×	1.0k 1.0×	598 0.9×	174 0.8×	170 0.8×	16	2.0k
Dejan Zečević United States	25	1.6k 1.2×	966 1.0×	410 0.6×	134 0.6×	228 1.1×	60	1.9k
Knut Holthoff Germany	22	1.9k 1.4×	1.1k 1.1×	837 1.3×	175 0.8×	345 1.6×	46	2.7k
Srdjan D. Antic United States	26	1.6k 1.2×	1.1k 1.1×	618 0.9×	144 0.7×	182 0.9×	62	2.2k
J. Simon Wiegert Germany	26	1.7k 1.2×	847 0.9×	770 1.2×	104 0.5×	157 0.7×	48	2.3k
Bart G. Borghuis United States	22	1.5k 1.1×	845 0.9×	1.3k 2.0×	79 0.4×	239 1.1×	37	2.3k
Spencer L. Smith United States	20	1.2k 0.8×	1.1k 1.1×	466 0.7×	153 0.7×	403 1.9×	40	1.9k
Björn M. Kampa Germany	18	1.8k 1.3×	1.4k 1.4×	511 0.8×	392 1.8×	357 1.7×	33	2.4k
Cha‐Min Tang United States	21	1.5k 1.1×	703 0.7×	1.0k 1.6×	101 0.5×	99 0.5×	42	2.2k
Boaz Mohar United States	13	1.2k 0.8×	638 0.6×	642 1.0×	77 0.4×	509 2.4×	15	2.1k

Countries citing papers authored by Helmut J. Koester

Since Specialization

Citations

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

Fields of papers citing papers by Helmut J. Koester

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helmut J. Koester. 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 Helmut J. Koester. The network helps show where Helmut J. Koester may publish in the future.

Co-authorship network of co-authors of Helmut J. Koester

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

All Works

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12 of 12 papers shown

Ranganathan, G & Helmut J. Koester. (2012). Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution. Journal of Visualized Experiments. e4052–e4052. 1 indexed citations

Ranganathan, G & Helmut J. Koester. (2011). Correlations Decrease with Propagation of Spiking Activity in the Mouse Barrel Cortex. Frontiers in Neural Circuits. 5. 8–8. 8 indexed citations

Ranganathan, G, et al.. (2011). Impact of cortical plasticity on information signaled by populations of neurons in the cerebral cortex. Journal of Neurophysiology. 106(3). 1118–1124. 2 indexed citations

Ranganathan, G & Helmut J. Koester. (2010). Optical Recording of Neuronal Spiking Activity From Unbiased Populations of Neurons With High Spike Detection Efficiency and High Temporal Precision. Journal of Neurophysiology. 104(3). 1812–1824. 14 indexed citations

Koester, Helmut J. & Daniel Johnston. (2005). Target Cell-Dependent Normalization of Transmitter Release at Neocortical Synapses. Science. 308(5723). 863–866. 175 indexed citations

Köhr, Georg, Vidar R. Jensen, Helmut J. Koester, et al.. (2003). Intracellular Domains of NMDA Receptor Subtypes Are Determinants for Long-Term Potentiation Induction. Journal of Neuroscience. 23(34). 10791–10799. 155 indexed citations

Frick, Andreas, Jeffrey C. Magee, Helmut J. Koester, Michele Migliore, & Daniel Johnston. (2003). Normalization of Ca²⁺Signals by Small Oblique Dendrites of CA1 Pyramidal Neurons. Journal of Neuroscience. 23(8). 3243–3250. 71 indexed citations

Schiller, Jackie, Guy Major, Helmut J. Koester, & Yitzhak Schiller. (2000). NMDA spikes in basal dendrites of cortical pyramidal neurons. Nature. 404(6775). 285–289. 513 indexed citations breakdown →

Koester, Helmut J. & Bert Sakmann. (2000). Calcium dynamics associated with action potentials in single nerve terminals of pyramidal cells in layer 2/3 of the young rat neocortex. The Journal of Physiology. 529(3). 625–646. 219 indexed citations

10.

Cremer, Thomas, Gregor Kreth, Helmut J. Koester, et al.. (2000). Chromosome Territories, Interchromatin Domain Compartment, and Nuclear Matrix: An Integrated View of the Functional Nuclear Architecture. Critical Reviews in Eukaryotic Gene Expression. 10(2). 38–38. 229 indexed citations

11.

Koester, Helmut J., et al.. (1999). Ca2+ Fluorescence Imaging with Pico- and Femtosecond Two-Photon Excitation: Signal and Photodamage. Biophysical Journal. 77(4). 2226–2236. 200 indexed citations

12.

Koester, Helmut J. & Bert Sakmann. (1998). Calcium dynamics in single spines during coincident pre- and postsynaptic activity depend on relative timing of back-propagating action potentials and subthreshold excitatory postsynaptic potentials. Proceedings of the National Academy of Sciences. 95(16). 9596–9601. 275 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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