Stimulus-induced visual cortical networks are recapitulated by spontaneous local and interareal synchronization

• DOI: 10.1073/pnas.1513773113
• Publication Date: 2016-02-02T20:22:15Z
• Authors: Christopher M. Lewis; Conrado A. Bosman; Thilo Womelsdorf; Pascal Fries
• Keywords: Stimulus (psychology); Cortical neurons

Significance The greatest proportion of brain activity is endogenously generated. brain’s endogenous highly structured and affects sensory coding, behavior, perception. observation across spatial scales suggests that it plays a role in the maintenance formation networks. correlation spontaneous functional MRI signals has demonstrated existence multiple intrinsic networks, previously observed during controlled cognitive paradigms. prevalence reliability networks have generated intense interest relevance electrophysiological basis interareal correlations. Using multisite recordings from areas V1 V4 awake monkeys, we show activity, both stimulation passive fixation, exhibits similar pattern local rhythmic synchronization.