Is prospective memory enhanced by cue-action semantic relatedness and enactment at encoding?

Area of Science:

• Cognitive Psychology
• Human Memory Studies

Background:

• Prospective memory (PM) is crucial for daily functioning.
• Understanding factors influencing PM performance, like encoding strategies and cue properties, is vital.
• Age-related differences in PM are well-documented, but moderating factors require further investigation.

Purpose of the Study:

• To investigate the benefits of enactment versus verbal encoding on PM performance.
• To examine the effect of semantic relatedness between cue-action pairs on PM.
• To assess age-related differences in these effects and the costs associated with PM task inclusion.

Main Methods:

• Two experiments were conducted involving younger and older adults.
• Participants performed ongoing tasks while remembering to perform PM tasks.
• Encoding strategies (enactment vs. verbal) and cue-action semantic relatedness were manipulated.

Main Results:

• Enactment and high semantic relatedness significantly improved PM performance for all participants.
• Younger adults generally outperformed older adults, but age did not moderate the benefits of enactment or relatedness.
• Including PM task instructions increased response latency in the ongoing task, but this cost was not affected by enactment or relatedness.

Conclusions:

• Enactment and strong cue-action semantic links are effective strategies for enhancing PM across age groups.
• Task interference costs associated with PM do not appear to be modulated by these encoding or cue factors.
• Metacognitive awareness, potentially driven by the numerous cue-action pairs, likely played a key role in attention allocation and performance.