In a string of experiments, mihaly Csikszentmihalyi, of Claremont Graduate University, has handed out pagers to thousands of people who agreed to log their mood whenever prompted to do so.

在一系列的实验中，加州克莱蒙研究生院的米哈里•奇凯岑特米·哈伊给几千个人分发了寻呼机，他们答应无论何时收到提示时便会记录自己的情绪。