Memory for Public Events in Mild Cognitive Impairment and Alzheimer's Disease: The Importance of Rehearsal

Journal of Alzheimer's Disease : JAD
Roxane LangloisIsabelle Rouleau

Abstract

Ribot's law refers to the better preservation of remote memories compared with recent ones that presumably characterizes retrograde amnesia. Even if Ribot-type temporal gradient has been extensively studied in retrograde amnesia, particularly in Alzheimer's disease (AD), this pattern has not been consistently found. One explanation for these results may be that rehearsal frequency rather than remoteness accounts for the better preservation of these memories. Thus, the aim of present study was to address this question by studying retrograde semantic memory in subjects with amnestic mild cognitive impairment (aMCI) (n = 20), mild AD (n = 20) and in healthy older controls (HC; n = 19). In order to evaluate the impact of repetition as well as the impact of remoteness, we used a test assessing memory for enduring and transient public events that occurred in the recent and remote past. Results show no clear temporal gradient across time periods (1960-1975; 1976-1990; 1991-2005; 2006-2011), but a better performance was observed in all three groups for enduring compared with transient events. Moreover, although deficits were globally found in both patients groups compared with HC, more specific analyses revealed that aMCI patients were...Continue Reading

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Citations

Apr 18, 2019·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·M-J ChaslesI Rouleau
Feb 25, 2020·Current Alzheimer Research·Emanuela RizzelloCristina Marchetti
Aug 21, 2020·Neuropsychology Review·Sven JoubertEmmanuel J Barbeau
Jun 10, 2017·Journal of Alzheimer's Disease : JAD·Maria Stefania De SimoneGiovanni Augusto Carlesimo
Jun 4, 2020·Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition·Ariane LajeunesseIsabelle Rouleau
Nov 14, 2019·Neurobiology of Aging·Pénélope Sévigny DupontSven Joubert

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