The SSVEP tracks attention, not consciousness, during perceptual filling-in
Matthew J Davidson, Will Mithen, Hinze Hogendoorn, Jeroen JA van Boxtel, Naotsugu Tsuchiya
eLife | ELIFE SCIENCES PUBLICATIONS LTD | Published : 2020
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 find..View full abstract
Awarded by Australian Research Council FT120100619 Naotsugu Tsuchiya
Australian Research Council FT120100619 Naotsugu TsuchiyaAustralian Research Council DP130100194 Naotsugu TsuchiyaThe funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.