What phenomenon might lead a person to disregard important information that comes after their initial judgement?

The anchoring effect is a cognitive bias that describes the tendency to rely heavily on the first piece of information encountered when making decisions. This initial piece of information serves as an 'anchor,' which then influences subsequent judgments and evaluations. For example, if a person is first presented with a high price for an item, they may then consider lower prices to be more reasonable, even if those prices are still inflated. This anchoring can lead individuals to disregard or downplay other important information that comes later because their decision-making is unduly influenced by that initial anchor. In practical terms, once a judgment is made based on that first piece of information, they may be less open to adjusting their opinion or considering new evidence that contradicts their initial judgment.