Exposure effect says that a repeated exposure to an image or concept with an initially neutral response will have a more favorable response over time and with repetition. For example, part of the positive effect on viewers of propaganda or advertising is that people see the same messages repeated over and over again. As long as there is a neutral or positive response at first exposure, the repeated viewings or exposures will have a positive likability effect on the exposed. Eventually, the exposure effect weakens because of boredom or normalcy. Exposure effect is commonly noted with meaningful quotes, jingles, photos, songs, art, people, and ads.