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Richard Kempter
Humboldt University of Berlin
103Publications
28H-index
3,694Citations
Publications 104
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#1Thomas McColgan (Humboldt University of Berlin)H-Index: 6
#2Paula T. Kuokkanen (Humboldt University of Berlin)H-Index: 6
Last.Richard Kempter (Humboldt University of Berlin)H-Index: 28
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Synaptic currents are assumed to make a major contribution to the extracellular field potential in the brain, but it is hard to directly isolate these synaptic components. Here we take advantage of...
1 CitationsSource
#1Denis Alevi (Technical University of Berlin)
#2Richard Kempter (Humboldt University of Berlin)H-Index: 28
Last.Henning Sprekeler (Technical University of Berlin)H-Index: 16
view all 3 authors...
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#1André Holzbecher (Humboldt University of Berlin)H-Index: 1
#2Richard Kempter (Humboldt University of Berlin)H-Index: 28
3 CitationsSource
#1Martina Michalikova (Humboldt University of Berlin)H-Index: 1
#2Michiel W. H. Remme (Humboldt University of Berlin)H-Index: 11
Last.Richard Kempter (Humboldt University of Berlin)H-Index: 28
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We addressed the origin of spikelets, using compartmental models of pyramidal neurons. Comparing our simulation results with published extracellular spikelet recordings revealed an axonal origin of...
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#1Paula T. Kuokkanen (Humboldt University of Berlin)H-Index: 6
#2Go AshidaH-Index: 11
Last.Richard Kempter (Humboldt University of Berlin)H-Index: 28
view all 9 authors...
Extracellular field potentials (EFPs) generate clinically important signals, but their sources are incompletely understood. As a model, we have analyzed the auditory neurophonic in the barn owl’s nucleus laminaris. There the EFP originates predominantly from spiking in the afferent axons, with spectral power ≳1 kHz, while postsynaptic laminaris neurons contribute little. In conclusion, the identification of EFP sources is possible if they have different spectral components and if their activitie...
3 CitationsSource
#1José R. Donoso (Humboldt University of Berlin)H-Index: 5
#2Dietmar SchmitzH-Index: 49
Last.Richard Kempter (Humboldt University of Berlin)H-Index: 28
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Hippocampal ripples are involved in memory consolidation, but the mechanisms underlying their generation remain unclear. Models relying on interneuron networks in the CA1 region disagree on the predominant source of excitation to interneurons: either ‘direct9, via the Schaffer collaterals that provide feedforward input from CA3 to CA1, or ‘indirect9, via the local pyramidal cells in CA1, which are embedded in a recurrent excitatory-inhibitory network. Here, we used physiologically constrained co...
8 CitationsSource
#1Tiziano D'Albis (Humboldt University of Berlin)H-Index: 5
#2Richard Kempter (Humboldt University of Berlin)H-Index: 28
Spatial cognition in mammals is thought to rely on the activity of grid cells in the entorhinal cortex, yet the fundamental principles underlying the origin of grid-cell firing are still debated. Grid-like patterns could emerge via Hebbian learning and neuronal adaptation, but current computational models remained too abstract to allow direct confrontation with experimental data. Here, we propose a single-cell spiking model that generates grid firing fields via spike-rate adaptation and spike-ti...
4 CitationsSource
#1Thomas McColgan (Humboldt University of Berlin)H-Index: 6
#2Ji Liu (UMD: University of Maryland, College Park)H-Index: 5
Last.Richard Kempter (Humboldt University of Berlin)H-Index: 28
view all 6 authors...
6 CitationsSource
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