* Purple is a non-spectral color created by the brain from red and blue signals * Individual differences in eyes and brain make each person see colors uniquely * All colors we //perceive, including ...

The human brain actively keeps "learning" in balance by holding on to what matters and letting go of what does not.

The face is an important feature for identifying individuals, and as suggested by the expression, “kaoiro wo ukagau” (Look at the complexion; i.e. be sensitive to someone’s mood, read someone’s ...