Face deficit holds object lesson

Recognizing mugs may not be special in the brain

A brain-damaged man who can’t remember faces has nosed into a scientific debate about how people learn to recognize other complex objects. Deaf users of sign language also have a hand in this dispute.

OBJECTS OF CONFUSION A brain-damaged man who can’t recognize faces also fared poorly at learning to distinguish computer-generated “Greebles” (such as these) from one another.