Peak–end rule end. The effects of the duration of an experience upon retrospective evaluation are extremely slight. Fredrickson and Kahneman labeled this phenomenon "duration neglect". The peak–end rule is applicable only when an experience has definite beginning and end periods. A 1993 study titled "When More Pain Is Preferred to Less: Adding a Better End" by Kahneman, Fredrickson, Charles Schreiber, and Donald Redelmeier provided groundbreaking evidence for the peak–end rule. Participants were subjected to two different versions of a single unpleasant experience. The first trial had subjects submerge a hand in 14 °C water for 60 seconds. The second trial had subjects
Rule/Sparkle the Honda Zest Spark, while "Rule" was used as the international theme song for the 2009 adventure film "Dragonball Evolution". "Rule/Sparkle" was released on February 25, 2009 by Avex Trax and Avex Taiwan in three different versions: two different CD editions and a CD and DVD version. Both CD version features two remixes of "Rule" while the first version features two remixes of her single "Green" and the second features two remixes of her single "Days". Akira Toriyama, the creator and manga artist for the "Dragon Ball" series, was commissioned by Avex Trax to draw an illustration of Hamasaki, which