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Cognitive abilities and prospective memory : a research on short time intervals affecting people’s decision making and planning

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In this paper, we explored the effect of time on people’s prospective memory intentions and their cognitive abilities when making memory predictions. Although retention interval was the experimental variable in between phases of our experiments, we modified the intensity of the ongoing activity and the sources of the prospective activities in experiment one and two. Thus, we conducted two experiments: in experiment one participants generated future intentions and predicted their performance; in experiment two participants performed a more compelling task while instructed and tested about the prospective tasks that had to be remembered. In both experiments respondents had to recall the future intentions on later stages. Generally we found that time has a negative impact on memory. There is a strong decay in memory after 30 minutes and not much further decay after 60 minutes. We also observed that people’s predictions about their memory don’t take into account the effect of time interval on memory. Our objectives were to contribute to the existing literature on human metacognition through testing prospective memory performance, predictions and fluency before and during the execution of future intentions. Furthermore, the present thesis attempted to corroborate the use of advertising and promotion in order to maintain vivid the desire and the need to buy products in consumers’ minds, as they fail to predict that their memory decays over short periods of time. People forget faster than they anticipate and are thus likely to forget what they need to do if not having a memory cue.

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