Blackness enhancement.
Since apparent brightness increases as an intermittent luminous source decreases from flicker fusion to approximately 10 cps, the phenomenal blackness induced by an intermittent annulus should also increase as a result of brightness contrast. However, data from 5 observers showed the phenomenal blackness occurring with a 10-cps inducer was greater than that expected on the basis of brightness contrast.
Brigner
W L
WL
Department of Psychology, Appalachian State University, Boone, NC, 28607.
Deni
J R
JR
D000328:Adult; D001288:Attention; D004193:Discrimination Learning; D005425:Flicker Fusion; D006801:Humans; D008027:Light; D011601:Psychophysics; D012684:Sensory Thresholds