'Such cues are prevalent in casinos and likely increase the allure of slot machine gambling.' 'These results show how cues associated with money or winning can make slot machines more attractive and can even make bigger wins more memorable,' said Spetch. The study, led by Professor Marcia Spetch in the Department of Psychology, shows that people prefer to play on virtual slot machines that provide casino-related cues, such as the sound of coins dropping or symbols of dollar signs.