Invisible visual stimuli elicit increases in alpha-band power.

@article{Bareither2014InvisibleVS,
  title={Invisible visual stimuli elicit increases in alpha-band power.},
  author={Isabelle Bareither and Maximilien Chaumon and Fosco Bernasconi and Arno Villringer and Niko A. Busch},
  journal={Journal of neurophysiology},
  year={2014},
  volume={112 5},
  pages={1082-90}
}
The cerebral cortex responds to stimuli of a wide range of intensities. Previous studies have demonstrated that undetectably weak somatosensory stimuli cause a functional deactivation or inhibition in somatosensory cortex. In the present study, we tested whether invisible visual stimuli lead to similar responses, indicated by an increase in EEG alpha-band power-an index of cortical excitability. We presented subliminal and supraliminal visual stimuli after estimating each participant's… CONTINUE READING
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