Starting point: Duke libraries website.
- Books and Media -- neuroscience -- genre -- biography
- Books and Media tab for the keyword Neuroscientist -- genre -- biography
Starting point: the internet. For example: https://www.thefamouspeople.com/neuroscientists.php
Once you have a name or an idea of who you might be interested in researching further, come back to Duke libraries for a search like this:
- Books and Media -- Santiago Ramón y Cajal
Tip - most websites will have a biographical sketch, which is not very robust. The scope of a biography gives more detail and context.