Introduction & Theoretical Background
Traditionally some of the most helpful ways of understanding core beliefs in CBT have been to see them as 'lenses' or 'prejudices'. Another way of illustrating the effects of core beliefs (and, implicitly, the strategies to undermine them) is to think of them as magnets with attractor and repulsor properties – they will attract evidence that is consistent with the belief, and will actively repel disconfirmatory evidence.