Your Brain Is Hooked on Being Right – Judith E. Glaser – Harvard Business Review.

In situations of high stress, fear or distrust, the hormone and neurotransmitter cortisol floods the brain. Executive functions that help us with advanced thought processes like strategy, trust building, and compassion shut down. And the amygdala, our instinctive brain, takes over. The body makes a chemical choice about how best to protect itself — in this case from the shame and loss of power associated with being wrong — and as a result is unable to regulate its emotions or handle the gaps between expectations and reality. So we default to one of four responses: fight (keep arguing the point), flight (revert to, and hide behind, group consensus), freeze (disengage from the argument by shutting up) or appease (make nice with your adversary by simply agreeing with him).