I’m sure it’s happened to you: You’re in a tense team meeting trying to defend your position on a big project and start to feel yourself losing ground. Your voice gets louder. You talk over one of your colleagues and correct his point of view. He pushes back, so you go into overdrive to convince everyone you’re right. It feels like an out of body experience — and in many ways it is. In terms of its neurochemistry, your brain has been hijacked.