![]() The authors claim that an optimistic bias is unlikely, apart from very specific cases including sports fans and smokers. The latter phenomenon, first described by Neil Weinstein ( Weinstein, 1980), has since been supported by a large body of evidence ( Armor and Taylor, 2002, Regan et al., 1995, Shepperd et al., 2003, Shepperd et al., 2013, Weinstein, 1987 for a review see: Sharot, 2011, Sharot, 2012).Ī recent study by Shah, Harris, Hahn, Catmur, and Bird (2016) has revisited the phenomenon of optimistic asymmetry in belief updating. This asymmetry can lead to a positive bias in beliefs regarding oneself, referred to as the superiority illusion ( Hoorens, 1993, Kruger and Dunning, 1999, Svenson, 1981), and in beliefs regarding one’s future, referred to as unrealistic optimism ( Calderon, 1993, Radcliffe and Klein, 2002, Shepperd et al., 2005, Weinstein, 1980, for review see Sharot & Garrett, 2016). ![]() Numerous studies spanning behavioural economics ( Eil and Rao, 2011, Krieger et al., 2016, Krieger et al., 2014, Möbius et al., 2012), psychology ( Garrett and Sharot, 2014, Kuzmanovic et al., 2015, Moutsiana et al., 2013) and neuroscience ( Garrett et al., 2014, Korn et al., 2012, Kuzmanovic et al., 2016, Lefebvre et al., 2016, Ma et al., 2016, Moutsiana et al., 2015, Sharot, Guitart-Masip et al., 2012, Sharot et al., 2011, Sharot, Kanai et al., 2012) have shown that people alter their beliefs to a greater extent in response to good news than bad news.
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