Sub-types of nonbelieved memories reveal differential outcomes of challenges to memories

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Abstract
Nonbelieved memories (NBMs) highlight the independence between distinct metamemorial judgements that contribute to the experience of remembering. Initial definitions of NBMs portrayed them as involving the withdrawal of belief in occurrence despite sustained recollection. While people rate belief for their NBMs as weaker than recollection, the average difference is too small to support the idea that autobiographical belief is completely withdrawn in all cases. Furthermore, autobiographical belief and recollection ratings vary considerably across NBMs. In two studies, we reanalysed data from prior studies to examine whether NBM reports reflect a single category or multiple sub-categories using cluster analytic methods. In Study 1, we identified three sub-types of NBMs. In Study 2 we incorporated the concept of belief in accuracy, and found that two of the clusters from Study 1 split into two clusters apiece. All clusters were characterised by higher recollection than belief in occurrence ratings, and clusters were differentiated by the degree of difference between these variables. In both studies the clusters were discriminated by a number of memory characteristic ratings and by reasons reported as leading to the alteration of belief. Implications for understanding the remembering of past events and predicting the creation of NBMs are discussed.
Funding Information
  • Natural Science and Engineering Research Council of Canada (RGPIN/327570-2012)

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