The human visual system differentially represents subjectively and objectively invisible stimuli.
PLoS Biology May 1, 2021 Timo Stein, Daniel Kaiser, Johannes J Fahrenfort et al.
The study of unconscious processing requires a measure of conscious awareness. Awareness measures can be either subjective (based on participant's report) or objective (based on perceptual performance). The preferred awareness measure depends on the theoretical position about consciousness and may influence conclusions about the extent of unconscious processing and about the neural correlates...