Final answer:
People pay more attention to stimuli that are unpredictable.
Step-by-step explanation:
According to researchers, people pay more attention to stimuli that are Unpredictable. When a stimulus is unpredictable, it stands out and captures our attention because it deviates from the expected or familiar patterns. For example, in a crowd, people are more likely to pay attention to someone doing something unusual or unexpected, compared to someone who is familiar or monotonous.