<p>i mean once they get accepted to Brown.</p>
<p>You don't declare a major (called a "concentration") until the end of second year, unless you know what you want to do earlier than that. You don't need to apply with a concentration in mind, though you can, and yes, you can switch after you have declared. It's probably pretty common. Brown's philosophy is that students should really explore the unknown and find things they never heard of before. Probably most students don't really know what they will study, and often, even if they do, they probably often totally do something else. Even for PLME, you can concentrate in non-science stuff and then go to the Med School-- I think!</p>
<p>Yes. Most students have no idea what they are concentrating in when they start, and they change their minds constantly the first two years (using my daughter and her friends as examples). Once you declare, you can change again.</p>
<p>And pre-med students, and those in PLME, can and do concentrate in non-science subjects.</p>
<p>Brown will pretty much never use the information included in your application starting the moment you set foot on campus.</p>
<p>and it takes like one form to do the switch</p>
<p>My daughter applied undeclared, but started in on sciences the first year. Never did the science supplement on the application. Got a Chemistry as her advisor, as requested after acceptance. Ended up declaring CS/Math at end of sophmore year and stuck to it.</p>