It is possible that for the judgment of “newness,” the easiest to judge, low-level perceptual characteristics are used in each situation and with each sense. While the IPC for “surface brightness” was high, the values for “surface glossiness” and “surface clarity,” were not very high. While this may reflect a difference in information processing, it is more likely that judging the “surface glossiness” and “surface clarity” of the stimuli utilized in the present experiment was difficult.