PERCEPTUAL constancy refers to relative stability in judgments of an object property with changes in its sensory stimulus. For example, visual judgments of the size and shape of objects are relatively ...

The whole orchestra tunes up to an A note from the oboe — but how do our brains tell that all the different sounds are the same pitch? The discovery of pitch-sensitive neurons provides some clues.

Babies may be able to see image details that are invisible or imperceptible to adults. According to a recent study [PDF] from Japanese scientists Jiale Yang, So Kanazawa, Masami K. Yamaguchi, and ...

Even when we consciously know two lines are the same length, why can't we help seeing them as different? ILLUSIONS are anomalies that can reveal clues about the mysterious workings of the brain to ...