The SSVEP tracks attention, not consciousness, during perceptual filling-in.

ABSTRACT: Research on the neural basis of conscious perception has almost exclusively shown that becoming aware of a stimulus leads to increased neural responses. By designing a novel form of perceptual filling-in (PFI) overlaid with a dynamic texture display, we frequency-tagged multiple disappearing targets as well as their surroundings. We show that in a PFI paradigm, the disappearance of a stimulus and subjective invisibility is associated with increases in neural activity, as measured with steady-state visually evoked potentials (SSVEPs), in electroencephalography (EEG). We also find that this increase correlates with alpha-band activity, a well-established neural measure of attention. These findings cast doubt on the direct relationship previously reported between the strength of neural activi

SUBMITTER: Davidson MJ 

PROVIDER: S-EPMC7682990 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature