Disturbing Behavior

I am trying to figure out the name of the girl in Disturbing Behavior, with short blonde hair & I think blue eyes. I don't remember her characters name, but there's this one part where she sticks these thingies up her nose so when they tell her to sniff something, it doesn't do anything to her. (I can't remember what. It has been a long time since I've seen the movie.) If anyone can tell me who they think she might be, please let me know. Thanks.