From MSNBC:
Even a casual reader of fan magazines can recognize pictures of Halle Berry or Jennifer Aniston, no matter how the stars are dressed or wearing their hair. Now a surprising study suggests that individual brain cells can do the same thing. The work could help shed light on how the brain stores memories, an expert said. When scientists sampled brain cell activity in people who were scrutinizing dozens of pictures, they found some cells that reacted to a particular famous person, landmark, animal or object. In one case, a single cell was activated by different photos of Berry, including some in her “Catwoman” costume, a drawing of her and even the words, “Halle Berry.”
More here.