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Abstract
Objective: Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system that frequently affects cognition. Persons with MS (PwMS) complain of difficulties with prospective memory (PM), the capacity to remember to perform an intended action at the appropriate moment in the future. The objective of this study was to assess the clinical utility of the Miami Prospective Memory Test (MPMT) in detecting PM deficits in MS. The test is brief, easy to administer and accessible, and allows direct comparison between scores on event- and time-based conditions. A secondary objective was to examine the relationship between PM performance and cognitive functioning. Method: Eighty-four PwMS between 27 and 78 years old were compared to 50 age-, sex- and education-matched healthy adults on the MPMT. Results: Time-based (TB) scores, but not event-based (EB) scores, were significantly lower in PwMS than in healthy adults. The MPMT showed good internal consistency, and correlations were found with disability assessed by the Expanded Disability Status Scale (EDSS). PM was also correlated with memory and executive/attention functioning. Conclusions: This study supports the clinical utility of the MPMT in assessing the presence of PM deficits in PwMS especially under TB constraints.
Acknowledgments
Our sincere thanks to all individuals who participated in the study. Thanks to Hugues Leduc for his generous help with the statistical analyses. Thanks to Nicolas and Cheryl Leon, and Karen Grislis for linguistic review.
Disclosure statement
No potential conflict of interest was reported by the authors.
Funding
The author(s) reported there is no funding associated with the work featured in this article.