Discretized Theta-Rhythm Perception Revealed by Moving Stimuli.

ABSTRACT: Despite the subjective continuity of perception over time, increasing evidence suggests that the human nervous system samples sensory information periodically, a finding strongly exemplified by discretized perception in the alpha-rhythm frequency band. More recently, studies have revealed a theta-band cyclic process that manifests itself as periodical fluctuations in behavioral performance. Here, we used a simple stimulus to demonstrate that the theta-cyclic system can produce a vivid experience of slow discrete visual sampling: a Gabor texture pattern appears as a series of flickering snapshots if its spatial window moves continuously over a carrier grating that remains still or drifts continuously in the opposite direction. While the perceptual magnitude of this illusory saltation varied

SUBMITTER: Nakayama R 

PROVIDER: S-EPMC5890248 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature