Prospective memory: When reminders fail

Guynn, Melissa J.; McDaniel, Mark A.; Einstein, Gilles O. · 1998 · OpenAlex-citations

DOI: 10.3758/bf03201140

archive: archived pipeline: cataloged verified

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Summary

This study investigates the efficacy of reminders in prospective memory (PM), challenging the common assumption that reminders inherently improve the likelihood of performing a future intended action. The authors address mixed findings in prior literature regarding whether recollections or prompts during a retention interval benefit PM performance. To resolve this, they conducted four experiments to determine under what specific conditions, if any, reminders facilitate prospective remembering. The experimental design embedded a prospective memory task within a demanding cover task (word fragment completion or anagram solving) to simulate real-world interruptions. Participants were instructed to circle specific target words when they appeared during the cover task. The researchers manipulated the presence and type of reminders provided during the retention interval. Experiments 1A and 1B compared a no-reminder control group against a group receiving three reminders that referenced only the target events. Experiment 2 expanded this design to a 2 × 3 factorial structure, varying the delay between reminder and target event (1 min vs. 6 min) and the content of the reminders: referencing only the target events, referencing both the target events and the intended action, or referencing both plus an instruction to imagine performing the task. A no-reminder control group was also included. Experiment 3 further examined the impact of reminder specificity and timing. The results consistently demonstrated that reminders referencing only the target events failed to improve prospective memory performance relative to the no-reminder control. In Experiments 1A and 1B, there were no significant differences in PM accuracy between groups. Experiment 2 revealed that reminders referencing both the target events and the intended action significantly improved PM performance compared to the control and target-only conditions. However, adding an instruction to imagine performing the task did not yield further improvements. Crucially, neither the delay between the reminder and the target event nor the delay between initial instructions and the cover task significantly influenced performance. The findings indicate that the content of the reminder is critical; merely recalling the cue is insufficient, whereas recalling the cue and the associated action strengthens the associative link necessary for retrieval. These findings refute the general assumption that any reminder benefits prospective memory and support a theoretical model where PM relies on an associative link between the retrieval context and the intended action. The study concludes that reminders are only effective when they reactivate this specific association. This has significant practical implications, suggesting that effective self-reminders or external prompts must explicitly link the cue to the required behavior, rather than simply reminding the individual of the cue itself. The results also imply that continuous or frequent reminders do not necessarily enhance performance, highlighting the importance of reminder specificity over frequency or duration.

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• prospective memory interruptions