Synfire chains
نویسندگان
چکیده
منابع مشابه
Graded, Dynamically Routable Information Processing with Synfire-Gated Synfire Chains
Coherent neural spiking and local field potentials are believed to be signatures of the binding and transfer of information in the brain. Coherent activity has now been measured experimentally in many regions of mammalian cortex. Recently experimental evidence has been presented suggesting that neural information is encoded and transferred in packets, i.e., in stereotypical, correlated spiking ...
متن کاملSynfire Chains and Catastrophic Interference
The brain must be capable of achieving extraordinarily precise sub-millisecond timing with imprecise neural hardware. We discuss how this might be possible using synfire chains (Abeles, 1991) and present a synfire chain learning algorithm for a sparsely-distributed network of spiking neurons (Sougné, 1999). Surprisingly, we show that this learning is not subject to catastrophic interference, a ...
متن کاملA Learning Algorithm for Synfire Chains
Neu robiological studies ind icate very p recise tempo ral behavior of neuron firings. Abeles [1] has recorded spik e timing of different co rtical cells and, in particular, has observed th e following level of precisio n: when a neuron A fires, neuron B w ould fire 15 1ms later an d neu ron C would fire p recisely 289 ms after that—with a precision across trials of 1 ms! Such lon g delays req ...
متن کاملRobust Feedforward Processing in Synfire Chains
The rapidity of time-constrained visual identification suggests a feedforward process in which neural activity is propagated through a number of cortical stages. The process is modeled by using a synfire chain, leading to a neural-network model which involves propagating activation waves through a sequence of layers. Theory and analysis of the model's behavior, especially in the presence of noi...
متن کاملControlling the Speed of Synfire Chains
This paper deals with the propagation velocity of synnre chain activation in locally connected networks of artiicial spiking neu-rons. Analytical expressions for the propagation speed are derived taking into account form and range of local connectivity, explicitly modelled synaptic potentials, transmission delays and axonal conduction velocities. Wave velocities particularly depend on the level...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2009
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.1441