The influence of stimulus size on newborns' discrimination of chromatic from achromatic stimuli

We used an habituation procedure to explore newborns' ability to detect successive changes in luminance and based on those data, their ability to discriminate chromatic from achromatic stimuli. Newborns were very insensitive to successive changes in luminance: after habituating to a white square of given luminance, they showed no evidence of dishabituating when the luminance of the square increased or decreased by 0.37 log cd/m2, but …