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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Curr Opin Behav Sci. 2021 Mar 31;41:30–37. doi: 10.1016/j.cobeha.2021.03.003

Figure 4.

Figure 4.

Hierarchical variation in intrinsic timescales across primate cortex. (A) Intrinsic neuronal timescales in spike-train recordings from multiple regions of the macaque cortex, from sensory to association areas [4]. (B) Intrinsic timescales of electrocorticographic recordings in the monkey cortex follow the same hierarchy as those of spiking activity [40]. (C) A spiking-neuron model of an association cortical circuit that contains sub-populations of pyramidal neurons with strong recurrent excitatory connections, parameterized by w+ [45]. (D) and (E) Intrinsic timescales of spiking fluctuations in model pyramidal neurons (D) and strength of persistent activity related to working memory (E) increases with the strength of recurrent structure.