The Effect of Unitization Strategy on Age-related Associative Memory Deficit
Notice bibliographique
Résumé
<p>The associative memory deficits observed in healthy older adults have been demonstrated to be at least partially driven by age-related declines in recollection-based memory processes (Old & Naveh-Benjamin, 2008). Parks and Yonelinas (2015) suggested that unitization – a memory strategy that synthesizes two previously unrelated objects into a new single entity which represents characteristics of both – could improve young adults’ associative memory performance by promoting familiarity-based, but not recollection-based, memory processes. This dissertation aimed to examine whether this unitization strategy could promote familiarity in older adults and subsequently improve their associative memory performance. Experiment 1 was a pilot study in which twenty young (aged 18-23) and 20 older adults (aged 65-89) were instructed to self-generate unitization mnemonics (compound definition, i.e., a definition for the compound that unitizes the two words) and a non-unitization strategy (sentence frame, i.e., a sentence that connects the two words). Results showed that although older adults took longer than their younger counterparts, they were better at generating mnemonics following both types of strategy instruction. In Experiment 2, thirty-six young and 36 older adults completed an associative memory task. During encoding, they studied word pairs, each with a sentence frame or a compound definition mnemonic as generated in Experiment 1. Then their memory for items as well as for pairs was assessed using a remember/know/new paradigm. Results indicated that for both age groups, familiarity increased in the unitization relative to the non-unitization condition. However, the increase in familiarity did not help older adults improve their associative memory in the same way as observed in the young adult group within the same experiment. Experiment 3 adopted an intentional encoding paradigm and a within-subject design. Thirty-two older adults studied word pairs using both sentence frame and compound definition strategy in two random-ordered blocks. Replicating Experiment 2, the unitization strategy boosted the level of familiarity-based retrieval but did not lead to better associative memory performance in older adults. Taken together, the results of this dissertation suggest that although unitization increased familiarity for older adults, it did not mitigate their associative memory deficits more effectively than a non-unitization strategy.</p>
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».