Monday, August 29, 2005
Polychronization: computation with spikes
A very interesting read; Not really about computing with spikes (yet), just running-it-and-seeing-what-happens. The main find is that if edge (axon) delays are introduced, certain neurons start ringing in a loop, because edge weights sum up to a value that causes the loop to self-sustain. Another result is that the number of such groups can be much greater than even the number of synapses in the network.
"In our view, attention is not a command that comes from the "higher" or "execute" center and tells which input to attend to. Instead, we view attention as an emerging property of simultaneous and regenerative activation (via positive feedback) of a large subset of groups representing a stimulus, thereby impeding activation of other groups corresponding to other stimuli"
A very interesting read; Not really about computing with spikes (yet), just running-it-and-seeing-what-happens. The main find is that if edge (axon) delays are introduced, certain neurons start ringing in a loop, because edge weights sum up to a value that causes the loop to self-sustain. Another result is that the number of such groups can be much greater than even the number of synapses in the network.
"In our view, attention is not a command that comes from the "higher" or "execute" center and tells which input to attend to. Instead, we view attention as an emerging property of simultaneous and regenerative activation (via positive feedback) of a large subset of groups representing a stimulus, thereby impeding activation of other groups corresponding to other stimuli"
# posted by Notetaker @ 9:36 AM 
