| | Models | Description |
| 1. |
Duration-tuned neurons from the inferior colliculus of the big brown bat (Aubie et al. 2009)
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dtnet is a generalized neural network simulator written in C++ with an easy to use XML description language to generate arbitrary neural networks and then run simulations covering many different parameter values. For example, you can specify ranges of parameter values for several different connection weights and then automatically run simulations over all possible parameters. Graphing ability is built in as long as the free, open-source, graphing application GLE (http://glx.sourceforge.net/) is installed.
Included in the examples folder are simulation descriptions that were used to generate the results in Aubie et al. (2009). Refer to the README file for instructions on compiling and running these examples.
The most recent source code can be obtained from GitHub: <a href="https://github.com/baubie/dtnet">https://github.com/baubie/dtnet</a>
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| 2. |
Duration-tuned neurons from the inferior colliculus of vertebrates (Aubie et al. 2012)
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These models reproduce the responses of duration-tuned neurons in the auditory midbrain of the big brown bat, the rat, the mouse and the frog (Aubie et al. 2012). They are written in the Python interface to NEURON and a subset of the figures from Aubie et al. (2012) are pre-set in run.py (raw data is generated and a separate graphing program must be used to visualize the results). |
| 3. |
Hopfield and Brody model (Hopfield, Brody 2000)
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NEURON implementation of the Hopfield and Brody model from the papers:
JJ Hopfield and CD Brody (2000)
JJ Hopfield and CD Brody (2001). Instructions are provided in the below readme.txt file. |
| 4. |
Hopfield and Brody model (Hopfield, Brody 2000) (NEURON+python)
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Demonstration of Hopfield-Brody snychronization using artificial cells in NEURON+python. |
| 5. |
Microsaccades and synchrony coding in the retina (Masquelier et al. 2016)
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We show that microsaccades (MS) enable efficient synchrony-based coding among the primate retinal ganglion cells (RGC). We find that each MS causes certain RGCs to fire synchronously, namely those whose receptive fields contain contrast edges after the MS. The emitted synchronous spike volley thus rapidly transmits the most salient edges of the stimulus. We demonstrate that the readout could be done rapidly by simple coincidence-detector neurons, and that the required connectivity could emerge spontaneously with spike timing-dependent plasticity. |
| 6. |
Optimal Localist and Distributed Coding Through STDP (Masquelier & Kheradpisheh 2018)
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We show how a LIF neuron equipped with STDP can become optimally selective, in an unsupervised manner, to one or several repeating spike patterns, even when those patterns are hidden in Poisson spike trains. |
| 7. |
Oscillations, phase-of-firing coding and STDP: an efficient learning scheme (Masquelier et al. 2009)
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The model demonstrates how a common oscillatory drive for a group of neurons formats and reliabilizes their spike times - through an activation-to-phase conversion - so that repeating activation patterns can be easily detected and learned by a downstream neuron equipped with STDP, and then recognized in just one oscillation cycle. |
| 8. |
Relative spike time coding and STDP-based orientation selectivity in V1 (Masquelier 2012)
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Phenomenological spiking model of the cat early visual system. We show how natural vision can drive spike time correlations on sufficiently fast time scales to lead to the acquisition of orientation-selective V1 neurons through STDP. This is possible without reference times such as stimulus onsets, or saccade landing times. But even when such reference times are available, we demonstrate that the relative spike times encode the images more robustly than the absolute ones. |
| 9. |
Spike-Timing-Based Computation in Sound Localization (Goodman and Brette 2010)
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" ...
In neuron models consisting of spectro-temporal filtering and spiking
nonlinearity, we found that the binaural structure induced by spatialized sounds is mapped to synchrony patterns that
depend on source location rather than on source signal.
Location-specific synchrony patterns would then result in the
activation of location-specific assemblies of postsynaptic neurons.
We designed a spiking neuron model which exploited
this principle to locate a variety of sound sources in a virtual acoustic environment using measured human head-related
transfer functions.
..." |
| 10. |
STDP allows fast rate-modulated coding with Poisson-like spike trains (Gilson et al. 2011)
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The model demonstrates that a neuron equipped with STDP robustly detects repeating rate patterns among its afferents, from which the spikes are generated on the fly using inhomogenous Poisson sampling, provided those rates have narrow temporal peaks (10-20ms) - a condition met by many experimental Post-Stimulus Time Histograms (PSTH). |
