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Related Experiment Video

Updated: Oct 5, 2025

Examining the Characteristics of Episodic Memory using Event-related Potentials in Patients with Alzheimer's Disease
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Prospective memory, emotions and Alzheimer's disease.

Mohamed Graa1, Anne-Marie Ergis2

  • 1Université de Paris, Maladie d'Alzheimer, F-75013 Paris, France, Service de Consultation, Hôpital Sainte-Périne, Paris, France.

Geriatrie Et Psychologie Neuropsychiatrie Du Vieillissement
|January 31, 2022
PubMed
Summary

Alzheimer's disease patients can improve prospective memory (PM) recall by linking tasks with positive emotional cues and strong cue-action links. This finding offers hope for PM rehabilitation in early Alzheimer's disease.

Keywords:
Alzheimer's diseaseemotionsprospective memory

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Area of Science:

  • Neuroscience
  • Psychology
  • Gerontology

Background:

  • Prospective memory (PM) is crucial for daily functioning and is impaired in early Alzheimer's disease (AD).
  • The "age-related positive effect" suggests AD patients better recall positively valenced information.
  • Emotional valence's impact on PM in AD remains underexplored.

Purpose of the Study:

  • To investigate the relationship between prospective memory and emotional valence in mild Alzheimer's disease.
  • To test if cue-action pair association with emotional valence can enhance PM recall in AD patients.

Main Methods:

  • Twenty mild AD patients and 20 healthy controls performed time-based and event-based PM tasks.
  • Actions were learned with associated positive, negative, or neutral cues, with varying cue-action link strength.
  • A simulated shopping trip scenario was used, incorporating distractors to manipulate task difficulty.

Main Results:

  • AD patients performed significantly worse than controls on both PM task types.
  • However, AD patients showed comparable performance to controls on event-based tasks when actions were linked to positive cues and strong cue-action pairs.
  • Strong cue-action links with positive valence appear to mitigate PM deficits in mild AD.

Conclusions:

  • Emotional valence, particularly positive, can modulate prospective memory performance in early Alzheimer's disease.
  • Associating positive stimuli with strong cue-action pairs may offer a compensatory strategy for AD patients.
  • These findings suggest potential avenues for developing targeted PM rehabilitation interventions for Alzheimer's disease.