Spontaneous neuronal oscillations in the human insula are hierarchically organized traveling waves.

ABSTRACT: The insula plays a fundamental role in a wide range of adaptive human behaviors, but its electrophysiological dynamics are poorly understood. Here, we used human intracranial electroencephalographic recordings to investigate the electrophysiological properties and hierarchical organization of spontaneous neuronal oscillations within the insula. We analyzed the neuronal oscillations of the insula directly and found that rhythms in the theta and beta frequency oscillations are widespread and spontaneously present. These oscillations are largely organized along the anterior-posterior (AP) axis of the insula. Both the left and right insula showed anterior--to-posterior decreasing gradients for the power of oscillations in the beta frequency band. The left insula also showed a posterior-to-ante

SUBMITTER: Das A 

PROVIDER: S-EPMC9200407 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature