The study also included lab and field experiments that examined whether the size of a seat in a car could effect drivers' behavior. The two were indeed correlated: In the laboratory test, drivers sitting in "more expansive" seats while playing a video game were more likely to "hit and run" other drivers in the game and play it more recklessly. Meanwhile, back in the real world, the authors' research assistants found that cars with larger drivers' seats were more likely to be double parked on city streets.
This new research builds off other work around "power poses" that has been getting a lot of attention. News outlets and Sheryl Sandberg's "Lean In" book have featured research by Yap, Carney and Harvard Business School professor Amy J.C. Cuddy, who is also listed on the desk study and whose TED talk about power posing has been viewed more than 6 million times. Their research focuses on the link between our minds and the sort of open, expansive poses that both humans and animals use to express power the same body language that's not inhibited when we're seated in larger workspaces or bigger driver's seats.
For instance, their research has found that "power posing" leaning back with your feet propped up on a desk and your hands behind your head or lifting your chest and holding your head high isn't just a way of expressing authority to others. It can actually prompt it physically. Striking a power pose for even two minutes can increase testosterone levels by about 20 percent and decrease cortisol by about 25 percent, leaving those who do so feeling more confident, less stressed and more willing to take risks.
So the next time you get ready to go in for an interview, maybe take a couple of minutes to puff out your chest and put your hands on your hips. And maybe be a little wary of the guy sitting on the other side of that massive desk.