Wang and colleagues present a model of the whole cortex (almost). A gradient of synaptic excitation results in sensory areas show fast responses while cognitive areas show slow integrative activity. Different temporal hierarchies/dynamics coexist in the same networks.
A Large-Scale Circuit Mechanism for Hierarchical Dynamical Processing in the Primate Cortex
Rishidev Chaudhuri, Kenneth Knoblauch, Marie-Alice Gariel, Henry Kennedy, Xiao-Jing Wang
Neuron, Volume 88, Issue 2, 21 October 2015, Pages 419–431
In general, this fits pretty well with our recent study of actual neural dynamics across the cortex:
Siegel, M., Buschman, T.J., and Miller, E.K. (2015) Cortical information flow during flexible sensorimotor decisions. Science. 19 June 2015: 1352-1355. View PDF