[pmayrgundter]

I think it's fine as a hypothesis for the CNS, and my guess is it's correct for the spinal cord on up to the maybe the thalamus. But there the anatomy changes radically, as does the electrical activity.. eg the cluster waves (alpha, beta, theta) begin there and indicate some sort of group behaviors in various areas.

Afaik, we have correlative descriptions of what these waves indicate (importantly, they're associated with sleep, consciousness, attentiveness), but no direct mechanical model of them or a clear purpose. So yeah, spike timing could still be used at this level, but it seems other behaviors are also happening that may be more essential to the larger function.