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Adaptive Memory: Generality of the Parent Processing Effect and Effects of Biological Relatedness on Recall

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Abstract

The adaptive memory framework posits that human memory is an evolved cognitive feature, in which stimuli relevant to fitness are better remembered than neutral stimuli. There is now substantial evidence that processing a neutral stimulus in terms of its relevancy to an imagined ancestral survival scenario enhances recall, although there is still disagreement concerning the proximate mechanisms responsible for this effect. Several other mnemonic biases have recently been discovered that similarly appear to reflect evolutionary pressures, including a bias to remember items relevant to an imagined parenting scenario. We tested the generality of this parent processing effect by varying the biological relatedness of the imagined child. We also varied the biological relatedness of a child during an imagined third-person survival processing scenario. Across four experiments, we found evidence that simply altering the described biological relatedness of a child in the parenting scenario and third-person survival processing scenario can affect recall, such that items are better remembered when made relevant to a biological child compared to an adopted child. How these findings inform the general adaptive memory framework is discussed.

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Acknowledgments

They are grateful to Crystal Casado, Michelle Jeon, and Tori Pena for their efforts in collecting the data.

Funding

This research was supported in part by NIMH grant 33881. Benjamin Seitz is supported by National Science Foundation grant DGE-1650604.

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Correspondence to Ralph R. Miller.

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Seitz, B.M., Polack, C.W. & Miller, R.R. Adaptive Memory: Generality of the Parent Processing Effect and Effects of Biological Relatedness on Recall. Evolutionary Psychological Science 6, 246–260 (2020). https://doi.org/10.1007/s40806-020-00233-1

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  • DOI: https://doi.org/10.1007/s40806-020-00233-1

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