See Inside February/March 2006

One Person, One Neuron?

Nerve cells devoted to recognizing Halle Berry or Bill Clinton? Absurd. That's what most neuroscientists thought—until recently
Two neurons

SABINA BERRETTA Translational Neuroscience Laboratory, McLean Hospital, Harvard Medical School

Think of the hundreds of people you can remember ever having met. Add those individuals--such as celebrities, politicians and other famous figures--whose faces you know well only from movies, TV and photographs. Is it possible that each of those individuals, along with thousands of other objects you can easily recognize from earlier encounters, could be captured in your memory by its own personal brain cell?

Perhaps. A recent study published in the journal Nature by scientists at the California Institute of Technology and the University of California, Los Angeles, suggests that our brains use far fewer cells to interpret any given image than previously believed. For instance, researchers discovered a "Bill Clinton cell" that responds almost exclusively to the former president. Another neuron fires only when the actor Halle Berry comes into view.

This is only a preview. Get the rest of this article now!

Select an option below:

Customer Sign In

*You must have purchased this issue or have a qualifying subscription to access this content

It has been identified that the institution you are trying to access this article from has institutional site license access to Scientific American on
Click here to access this article in its entirety through site license access.

Share this Article:


You must sign in or register as a member to submit a comment.
Scientific American Holiday Sale

Scientific American Mind Digital

Get 6 bi-monthly digital issues
+ 1yr of archive access for just $9.99

Hurry this offer ends soon! >


Email this Article


Next Article