Assessing absentmindedness: Prospective memory complaint and impairment in middle-aged adults

Mäntylä, Timo · 2003 · Crossref

DOI: 10.3758/bf03196078

archive: archived pipeline: cataloged verified

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Summary

This study investigates the relationship between subjective memory complaints and objective memory performance, specifically focusing on prospective memory (remembering to perform future intentions) versus retrospective memory (remembering past events). The research addresses the longstanding discrepancy where self-reports of everyday memory problems often show weak correlations with laboratory-based episodic memory tests. The authors hypothesize that prospective memory tasks provide a more sensitive criterion for detecting individual differences in self-reported memory issues because they rely on complex executive processes, such as monitoring and task switching, which are more vulnerable to impairment than standard retrospective tasks. The study comprised two experiments involving middle-aged adults to minimize confounding variables related to aging or lifestyle. Experiment 1 recruited 40 women who self-reported exceptional prospective memory problems ("absentmindedness") and 32 nonreporters. Participants underwent a year-long assessment including laboratory tasks (face/name recognition, word recall, and prospective memory tasks with varying retrieval support) and a naturalistic telephone task. Experiment 2 utilized a larger population-based sample, comparing self-reporters and nonreporters of both retrospective and prospective memory problems. Both groups completed a battery of five retrospective and three prospective memory tasks. The results demonstrated selective differences in performance. In both experiments, participants who reported memory problems exhibited significant impairments in prospective memory tasks but performed comparably to nonreporters on retrospective memory tasks. In Experiment 1, self-reporters showed lower success rates in uncued prospective retrieval conditions and struggled more with atypical prospective targets requiring high self-initiated retrieval. However, their retrospective memory performance (word recall, face recognition) was statistically similar to the control group. Furthermore, self-reporters relied more heavily on compensatory strategies, such as external aids and increased effort, indicating heightened metamemorial awareness. A one-year follow-up confirmed that the majority of self-reporters continued to experience similar prospective memory difficulties. The findings suggest that memory for future intentions is a more valid and sensitive measure for assessing individual differences in self-reported episodic memory problems than memory for past events. The discrepancy between subjective complaints and objective retrospective performance may stem from the fact that prospective memory tasks better reflect the executive and frontally mediated processes involved in everyday mnemonic functioning. Consequently, individuals who consider themselves "absentminded" may have specific deficits in prospective remembering rather than general episodic memory impairment, highlighting the importance of distinguishing between prospective and retrospective memory in clinical and experimental assessments.

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• prospective memory interruptions