"We studied a simple random recurrent inhibitory network. Despite its simplicity, the dynamics was so rich that activity patterns of neurons
evolved with time without recurrence due to random recurrent connections
among neurons. The sequence of activity patterns was generated
by the trigger of an external signal, and the generation was stable against
noise.... Therefore, a
time passage from the trigger of an external signal could be represented by
the sequence of activity patterns, suggesting that this model could work
as an internal clock. ..."
Reference:
1 .
Yamazaki T, Tanaka S (2005) Neural modeling of an internal clock. Neural Comput 17:1032-58 [PubMed]
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