though the second exposure was preceded by a different affective stimulus. In other words, the second priming was ineffective because the effects of the first priming still remained. If the participant liked a character following exposure to a smiling face, they would continue to like the character even when it was preceded by a frowning face during the second exposure. (The experimental outcome was statistically significant and adjusted for variables such as non-affective preference for certain characters). Insensitivity to numbers Sometimes affective responses to certain stimuli are a result of a lack of sensitivity to other factors, for example, numbers. Slovic and Peters (2006) did a study on psychophysical numbing, the inability to discriminate change in a physical stimulus as the magnitude of the stimulus increases, and found that students more strongly supported an airport-safety measure that was expected to save a high percentage of 150 lives at risk as opposed to a measure that was expected to save 150 lives. This is thought to have occurred because although saving 150 lives is good, it is somewhat harder to comprehend and thus the decision comes from the positive feeling associated with the higher percentage. The influence of time Research has been conducted in the influence that time plays in decision-making. In two experiments, Finucane, Alhakami, Slovic and Johnson (2000) studied the affect heuristic under time pressure and the influence that providing risk and benefit information has on the affect heuristic. The researchers compared individuals under no time pressure and those with time pressure. They predicted that individuals under time pressure would rely more heavily on their affect in order to be more efficient in their responses whereas those under no time pressure would use more logic in their decision-making. To do this, university students were randomly assigned to one of the two conditions (time pressure or no time pressure) and one of the two counterbalancing orders (risk judgements followed by benefit judgements or vice versa). They were then given a task in which they had to make judgements about the risk or benefit of certain activities and technologies. As predicted, individuals in the time-pressure condition took less time to make risk judgements than did individuals in the no time pressure condition. In the second experiment, students again had to make judgements about certain activities, but this time were given additional information about the risk and benefits. Information was framed as