Neocortical activity is stimulus- and scale-invariant.

ABSTRACT: Mounting evidence supports the hypothesis that the cortex operates near a critical state, defined as the transition point between order (large-scale activity) and disorder (small-scale activity). This criticality is manifested by power law distribution of the size and duration of spontaneous cascades of activity, which are referred as neuronal avalanches. The existence of such neuronal avalanches has been confirmed by several studies both in vitro and in vivo, among different species and across multiple spatial scales. However, despite the prevalence of scale free activity, still very little is known concerning whether and how the scale-free nature of cortical activity is altered during external stimulation. To address this question, we performed in vivo two-photon population calcium imagi

SUBMITTER: Karimipanah Y 

PROVIDER: S-EPMC5425225 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature