Topic: tRG fixed points

Healthy cerebral cortex function requires complex neuronal population activity with a diverse repertoire of timescales, from fleeting response to sensory input ($\sim$10-100 ms), to execution of complex body movements ($\sim 100-1000 ms$), to even longer timescales of working memory ($\sim 1-10 s$). How does cortex generate such a broad range of timescales? How is the timescale repertoire tuned in response to shifting behavioral demands? One potential explanation is that cortex operates close to criticality, i.e., close to a boundary between two different dynamical regimes. At criticality, flu