One of many (lots and lots?) insights garnered from research that says building architecture affects mood (and other stuff):
Because her earlier work had indicated that elevated ceilings make people feel physically less constrained, the investigator posits that higher ceilings encourage people to think more freely, which may lead them to make more abstract connections. The sense of confinement prompted by low ceilings, on the other hand, may inspire a more detailed, statistical outlook—which might be preferable under some circumstances. “It very much depends on what kind of task you’re doing,” Meyers-Levy explains. “If you’re in the operating room, maybe a low ceiling is better. You want the surgeon getting the details right.”
From Emily Anthes’s “How Room Designs Affect Your Work and Mood” in Scientific American in print here.