We have thus far laid out the basic arguments that constitute the foundation for our model of tolerance judgments. First, as Chapter 2 revealed, previous research has clearly established the strong influence of antecedent considerations, such as personality, education, and commitment to democratic principles, on people's current tolerance judgments. Such predispositions and standing decisions presumably set boundaries on people's willingness to be tolerant or intolerant at any given time. But this past research also identifies another potential influence on tolerance: perceptions of threat. While people may have a predisposition to see threat as pervasive, or a standing decision to perceive a disliked group as threatening, threatening stimuli in the environment can also be especially relevant pieces of contemporary information.

As we discussed in Chapter 3, Gray argues that the BIS monitors the environment for threatening stimuli that violate norms of proper, orderly behavior. Therefore, the type and degree of threat a group poses provide people with information that may affect their current tolerance judgment. State of mind, that is, whether people pay attention to their thoughts or feelings, may also affect their contemporary tolerance judgments.