Affiliation: Humboldt University
- Spike-frequency adaptation generates intensity invariance in a primary auditory interneuronJan Benda
Institute for Theoretical Biology, Biology Department, Humboldt University, Invalidenstr 43, 10115 Berlin, Germany
J Comput Neurosci 24:113-36. 2008..Thus, fast spike-frequency adaptation can generate intensity invariance already at the first level of neural processing...
- A universal model for spike-frequency adaptationJan Benda
Department of Physics, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
Neural Comput 15:2523-64. 2003..As an extension of the model, we introduce a framework for combining an arbitrary spike generator with a generalized adaptation current...
- A synchronization-desynchronization code for natural communication signalsJan Benda
Department of Cellular and Molecular Medicine, University of Ottawa, 51 Smyth Road, Ottawa, Ontario K1H 8M5, Canada
Neuron 52:347-58. 2006..We conclude that, in general, both positive and negative changes in the degree of synchrony can be the relevant signals for neural information processing...
- Multiple arithmetic operations in a single neuron: the recruitment of adaptation processes in the cricket auditory pathway depends on sensory contextK Jannis Hildebrandt
Department of Biology, Humboldt Universitat zu Berlin, 10115 Berlin, Germany
J Neurosci 31:14142-50. 2011..We further revealed that presynaptic inhibition is a simple mechanism for divisive operations. Unlike other proposed mechanisms, it is widely available in the sensory periphery of both vertebrates and invertebrates...
- The origin of adaptation in the auditory pathway of locusts is specific to cell type and functionK Jannis Hildebrandt
Behavioural Physiology, Biology Department, Humboldt Universitat zu Berlin, 10115 Berlin, Germany
J Neurosci 29:2626-36. 2009..We conclude that the adaptation mechanisms differ greatly among interneurons within this sensory pathway and are a function of their role in information processing...
- Postsynaptic receptive field size and spike threshold determine encoding of high-frequency information via sensitivity to synchronous presynaptic activityJason W Middleton
Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
J Neurophysiol 101:1160-70. 2009..Thus our work reveals that the frequency content of a broadband stimulus extracted by pyramidal cells, from P-unit afferents, depends on the amount of feedforward convergence they receive...
- Spike-frequency adaptation separates transient communication signals from background oscillationsJan Benda
Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, K1H 8M5 Canada
J Neurosci 25:2312-21. 2005..These results demonstrate how spike-frequency adaptation in general can facilitate extraction of signals of different time scales, specifically high-frequency signals embedded in slower oscillations...
- Limits of linear rate coding of dynamic stimuli by electroreceptor afferentsDaniel Gussin
Dept of Cell and Molecular Medicine and Center for Neural Dynamics, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8M5, Canada
J Neurophysiol 97:2917-29. 2007....
- The cellular basis for parallel neural transmission of a high-frequency stimulus and its low-frequency envelopeJason W Middleton
Department of Physics, University of Ottawa, 150 Louis Pasteur Avenue, Ottawa, Ontario, Canada K1N 6N5
Proc Natl Acad Sci U S A 103:14596-601. 2006..This circuit could, in principle, be implemented in the auditory or visual cortex by the previously identified biophysics of cortical interneurons...
- Energy integration describes sound-intensity coding in an insect auditory systemTim Gollisch
Institute for Theoretical Biology, Department of Biology, Humboldt University, 10115 Berlin, Germany
J Neurosci 22:10434-48. 2002..These findings set quantitative constraints for future biophysical models...
- The effect of difference frequency on electrocommunication: chirp production and encoding in a species of weakly electric fish, Apteronotus leptorhynchusGinette J Hupé
Department of Biology, University of Ottawa, Ottawa, ON, Canada
J Physiol Paris 102:164-72. 2008..Here, we provide evidence that at higher Dfs, chirps could be encoded by a desynchronization of the P-unit population activity...
- Channel noise from both slow adaptation currents and fast currents is required to explain spike-response variability in a sensory neuronKarin Fisch
Department Biology II, Ludwig Maximilians Universität München and Bernstein Center for Computational Neuroscience München, 82152 Martinsried, Germany
J Neurosci 32:17332-44. 2012..It could be applied to various other types of neurons, in which channel noise dominates the fluctuations that shape the neuron's spike statistics...
- From response to stimulus: adaptive sampling in sensory physiologyJan Benda
Department of Biology and Bernstein Center for Computational Neuroscience Berlin, Humboldt Universitat zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
Curr Opin Neurobiol 17:430-6. 2007..Examples from different sensory systems show that, in all three directions, substantial progress can be achieved once rapid online data analysis, adaptive sampling, and computational modeling are tightly integrated into experiments...