Brain scans show more than buyers bargained for

Putting on a convincing poker face might not depend on skill alone; it could also be down to the wiring of your brain.

Successful poker players and effective bargainers are good at bluffing: in other words, they can manipulate how other people see them. Until now the brain processes behind this ability have been poorly understood, but a new study has identified patterns of brain activity in talented bluffers.