Artificial intelligence may write award-winning essays and diagnose disease with remarkable accuracy, but biological brains still hold the upper hand in at least one crucial domain: flexibility.

If you wanted to build a brain, how would you go about it? From the top down, focusing on the functions of the various centers of thought? Or from the bottom up, starting with the circuitry of the ...

The human brain not only remembers who other people are, it also uses basic mathematical functions called basis functions to store information about how people interact — for example, how they work ...