@article{0a5f6befa32f49a2864285b2ebed72cb,
title = "Sleep-Wake Disturbances and Episodic Memory in Older Adults",
abstract = "Sleep-wake disturbances have been associated with episodic memory loss, but past studies were limited by use of single measures of objective or perceived disturbances. Notably, cognitive reserve and depressive symptoms have been associated with sleep-wake disturbances and poorer episodic memory in older adults. The aims of this study were to determine the relationship between episodic memory and sleep-wake disturbances using objective and perceived measures in older adults and to examine cognitive reserve and depressive symptoms as moderators of this relationship. In this descriptive study, 62 healthy older adults (mean age: 69.9 years; 75.8% women) were recruited from the University of Michigan Clinical Research Program. Objective sleep-wake disturbances were measured by 7-day actigraphy and perceived sleep-wake disturbances by the Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale. Episodic memory was measured by the Hopkins Verbal Learning Test-Revised. Analyses involved Pearson{\textquoteright}s correlation coefficients and hierarchical multiple regression. Results showed that more objectively measured sleep disruption was associated with poorer episodic memory and more perceived daytime sleepiness was associated with better episodic memory. Cognitive reserve and depressive symptoms were not moderators of this relationship. In this study, the relationship between sleep-wake disturbances and episodic memory differed by type of measure, objective or perceived. Future studies are needed using multiple measures of episodic memory to further understand the sleep-wake disturbances and episodic memory relationship in a larger diverse sample of healthy older adults.",
keywords = "aging, memory, sleep",
author = "Yeh, {An Yun} and Pressler, {Susan J.} and Donna Algase and Struble, {Laura M.} and Pozehl, {Bunny J.} and Berger, {Ann M.} and Giordani, {Bruno J.}",
note = "Funding Information: Works for this primary research and manuscript writing were performed at the University of Michigan at Ann Arbor, University of Nebraska Medical Center, and Hunter College, the City University of New York. We appreciate funding support from Rackham Graduate School and the Class of 1959 Scholarship from the Alumni of the School of Nursing of the University of Michigan and a Dissertation Award from the Midwest Nursing Research Society. Statistical analysis was assisted by the Consulting for Statistics, Computing and Analytics Research at the University of Michigan and Dr. Kevin Kupzyk from the University of Nebraska Medical Center, College of Nursing. We also appreciate assistance from Dr. Shiela Strauss, a consultant at the Hunter-Bellevue School of Nursing, the City University of New York in revising and finalizing this manuscript. The author(s) received no financial support for the research, authorship, and/or publication of this article. Funding Information: Works for this primary research and manuscript writing were performed at the University of Michigan at Ann Arbor, University of Nebraska Medical Center, and Hunter College, the City University of New York. We appreciate funding support from Rackham Graduate School and the Class of 1959 Scholarship from the Alumni of the School of Nursing of the University of Michigan and a Dissertation Award from the Midwest Nursing Research Society. Statistical analysis was assisted by the Consulting for Statistics, Computing and Analytics Research at the University of Michigan and Dr. Kevin Kupzyk from the University of Nebraska Medical Center, College of Nursing. We also appreciate assistance from Dr. Shiela Strauss, a consultant at the Hunter-Bellevue School of Nursing, the City University of New York in revising and finalizing this manuscript. Publisher Copyright: {\textcopyright} The Author(s) 2020.",
year = "2021",
month = apr,
doi = "10.1177/1099800420941601",
language = "English (US)",
volume = "23",
pages = "141--150",
journal = "Biological Research for Nursing",
issn = "1099-8004",
publisher = "SAGE Publications Inc.",
number = "2",
}