as rosy retrospection, to view the past more favourably and the future more negatively. Research In one group of experiments, three groups going on different vacations were interviewed before, during, and after their vacations. Most followed the pattern of initially positive anticipation, followed by mild disappointment thereafter. Generally, most subjects reviewed the events more favorably some time after the events had occurred than they did while experiencing them. See also Emotion and memory List of cognitive biases Hindsight bias Memory Optimism bias Positivity effect Reference class forecasting Nostalgia Declinism Pollyanna principle References Further reading Cognitive biases Memory biases Nostalgia