summarize the results of this paper: 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 patterns of neural activity. Due to their relevance to
coherent spiking, synfire chains are one of the main theoretical constructs that have been
appealed to in order to describe coherent spiking and information transfer phenomena.
However, for some time, it has been known that synchronous activity in feedforward networks
asymptotically either approaches an attractor with fixed waveform and amplitude, or
fails to propagate. This has limited the classical synfire chain’s ability to explain graded neuronal
responses. Recently, we have shown that pulse-gated synfire chains are capable of
propagating graded information coded in mean population current or firing rate amplitudes.
In particular, we showed that it is possible to use one synfire chain to provide gating pulses
and a second, pulse-gated synfire chain to propagate graded information. We called these
circuits synfire-gated synfire chains (SGSCs). Here, we present SGSCs in which graded
information can rapidly cascade through a neural circuit, and show a correspondence
between this type of transfer and a mean-field model in which gat Provide your reponse without using the word correspondence.
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