Persistence of EEG Alpha Entrainment Depends on Stimulus Phase at Offset.

ABSTRACT: Neural entrainment is the synchronization of neural activity to the frequency of repetitive external stimuli, which can be observed as an increase in the electroencephalogram (EEG) power spectrum at the driving frequency, -also known as the steady-state response. Although it has been systematically reported that the entrained EEG oscillation persists for approximately three cycles after stimulus offset, the neural mechanisms underpinning it remain unknown. Focusing on alpha oscillations, we adopt the dynamical excitation/inhibition framework, which suggests that phases of entrained EEG signals correspond to alternating excitatory/inhibitory states of the neural circuitry. We hypothesize that the duration of the persistence of entrainment is determined by the specific functional state of th

SUBMITTER: Otero M 

PROVIDER: S-EPMC7161378 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature