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 ...

Our brains have an extraordinary ability to adapt and learn, a process known as neuroplasticity. From navigating a new city to mastering a new skill, neuroplasticity allows us to reshape our neural ...