There is a third human bias that causes you to tell yourself that you have successfully changed your mind when you have not really done so. The adherent of the Reformed Church of Dragon leaves the garage door open, and cheerfully admits to anyone who asks that there is probably no such thing as an invisible dragon, yet she is unaccountably cautious about actually parking her car in the garage. Thus it is worth knowing not just how to change your mind, but how to change your habits in response to new information.
Related: The Mystery of the Haunted Rationalist.