Socioemotional selectivity theory
In recall

The term positivity effect also refers to age differences in emotional attention and memory. As people get older, they experience fewer negative emotions and they tend to look to the past in a positive light. In addition, compared with younger adults' memories, older adults' memories are more likely to consist of positive than negative information and more likely to be distorted in a positive direction. This version of the positivity effect was coined by Laura L. Carstensen's research team. There is a debate about the cross-cultural generalizability of the aging-related positivity effect, with some evidence for different types of emotional processing among Americans as compared to Japanese.
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