Name
Title | ||
|---|---|---|
Coding of temporally varying signals in networks of spiking neurons with global delayed feedback. |
Abstract | ||
|---|---|---|
Oscillatory and synchronized neural activities are commonly found in the brain, and evidence suggests that many of them are caused by global feedback. Their mechanisms and roles in information processing have been discussed often using purely feedforward networks or recurrent networks with constant inputs. On the other hand, real recurrent neural networks are abundant and continually receive information-rich inputs from the outside environment or other parts of the brain. We examine how feedforward networks of spiking neurons with delayed global feedback process information about temporally changing inputs. We show that the network behavior is more synchronous as well as more correlated with and phase-locked to the stimulus when the stimulus frequency is resonant with the inherent frequency of the neuron or that of the network oscillation generated by the feedback architecture. The two eigenmodes have distinct dynamical characteristics, which are supported by numerical simulations and by analytical arguments based on frequency response and bifurcation theory. This distinction is similar to the class I versus class II classification of single neurons according to the bifurcation from quiescence to periodic firing, and the two modes depend differently on system parameters. These two mechanisms may be associated with different types of information processing. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1162/0899766054615680 | Neural Computation |
Keywords | DocType | Volume |
temporally varying signals,frequency response,class ii classification,feedback architecture,global feedback,global delayed feedback,delayed global feedback process,information processing,feedforward network,bifurcation theory,stimulus frequency,inherent frequency,spiking neurons | Journal | 17 |
Issue | ISSN | Citations |
10 | 0899-7667 | 4 |
PageRank | References | Authors |
0.60 | 15 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Naoki Masuda | 1 | 243 | 30.82 |
| Brent Doiron | 2 | 168 | 17.71 |
| André Longtin | 3 | 260 | 47.87 |
| Kazuyuki Aihara | 4 | 1909 | 333.03 |