Objective magnitude representations may be prone to subjective percepts when judging human beings. An elderly man is clearly “large” in terms of age. But, is he truly perceived as “big” in our minds?

The eye’s natural aging influences our ability to focus on close objects. Without optical correction, all adults will suffer from blurry close vision starting in their 40s. In effect, different ...

Is your green my green? Probably not. What appears as pure green to me is likely to look a bit yellowish or bluish to you. This is because visual systems vary from person to person. Moreover, an ...