thalamocortical loops

SpikeFun v0.91 - Voltage Based STDP

SpikeFun v0.91 is out and brings support for more advanced long-term plasticity - Voltage-based STDP (based on the model of Clopath et. al). Voltage-based STDP is in agreement with more experimental data than conventional STDP models that consider spike timing only.

SpikeFun v0.90 - More Complex Pyramidal Neurons, Demo with 3.52 Billion Synapses and more...

SpikeFun v0.90 is out and brings support for more advanced pyramidal neuron morphologies such as apical tufts and dendritic tree branching. In addition, new milestone has been reached - simulation with 3.52 billion synapses, which is just some 0.5 billion synapses shy of the current built-in simulation limits. Click on the title to find out more!

New Milestone - 16.7 Million Neurons, 2.1 Billion Synapses

SpikeFun and its DigiCortex engine have been scaled to accommodate simulation of 16.7 million multi-compartment neurons with 2.1 billion synapses. To my best knowledge, this is the largest-scale simulation of cortical neurons on a home PC. Click on the title to find out more!

Happy First Birthday, SpikeFun

SpikeFun is now 1 years old! This article goes through the progress of the DigiCortex library and SpikeFun demo simulator in the last year and also describes some of the ideas that will be implemented in the future. Click on the title to find out more!

SpikeFun 0.82 - Adding Some Brainstem into the Mix...

SpikeFun v0.82 brings support for modeling of brainstem nuclei - in this early phase, only one nuclei is supported (Pedunculopontine Tegmental Nucleus - PPTN). PPTN nuclei was chosen as the first because it sends strongs projections to Thalamus and represents one of the key hubs of the ascending arousal system and, as such, is implicated in core conciousness mechanisms such as awareness. Click on the title to find out more!

SpikeFun 0.80 - The Road Ahead

SpikeFun v0.80 comes with the first (pre-alpha) preview of the future simulation-modelling GUI (DigiCortexIDE binary). At the moment, new GUI is not offering much of the planned functionality but even to get to this point, big changes were made under-the-hood so DigiCortex can become usable outside simple "demo app" environment. Another change is the new algorithm for tracking subcortical white matter connectivity, allowing for identification of thalamic nuclei (still in very early phase - and error prone). Click on the title to find out more!

SpikeFun 0.57 - DSI Axon Guidance, Multi-Site EEG, Experiments...

SpikeFun v0.57 has just been released and it is loaded with new features ranging from the new network generation algorithm all the way down to the new command line interface... click on the title to find out what's new!

SpikeFun 0.5 - Sleepy vs. (Really) Awake Brain...

As described in the previous post, SpikeFun v0.5 is using 3D brain model for neural network build-up (if desired). With quite a big jump in complexity of the neural network, there are some very interesting emerging phenomena that could be observed if the network is fairly large. Click on the title to find out more!

SpikeFun 0.5 - Let's get... brainy :-)

SpikeFun v0.5 has just been released and it contains some quite big improvements. How about real 3D model of the brain? If you are interested - click on the title to read more!

Thalamocortical loops, multi-compartment neurons and more...

New SpikeFun versions comes with multi-compartmental neuron models, thalamocortical system simulations including cortex (6-layers) and thalamus modeling, simulation of fMRI BOLD (Blood-Oxygen-Level-Dependence) and several other cool features! Click here, or on the title of the article to read more...

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