• Login
    View Item 
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Dissertations
    • View Item
    •   Home
    • UA Graduate and Undergraduate Research
    • UA Theses and Dissertations
    • Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA Catalogs

    Memory, Arousal, and Perception of Sleep

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    azu_etd_15901_sip1_m.pdf
    Size:
    985.9Kb
    Format:
    PDF
    Download
    Author
    Dawson, Spencer Charles
    Issue Date
    2017
    Keywords
    arousal
    insomnia
    memory
    sleep
    Advisor
    Allen, John J.B.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    People with insomnia overestimate how long it takes to fall asleep and underestimate the total amount of sleep they attain. While memory is normally decreased prior to sleep onset, this decrease is smaller in insomnia. Insomnia generally and the phenomena of underestimation of sleep and greater memory prior to sleep area associated with arousal including cortical, autonomic, and cognitive arousal. The goal of the present study was to simultaneously examine arousal across these domains in relation to memory and accuracy of sleep estimation. Forty healthy adults completed baseline measures of sleep, psychopathology, and memory, then maintained a regular sleep schedule for three nights at home before spending a night in the sleep laboratory. On the night of the sleep laboratory study, participants completed measures of cognitive arousal, were allowed to sleep until five minutes of contiguous stage N2 sleep in the third NREM period. They were then awoken and asked to remain awake for fifteen minutes, after which they were allowed to resume sleeping. For the entire duration that they were awake, auditory stimuli (recordings of words) were presented at a rate of one word per 30 seconds. Participants slept until morning, estimated how long they were awake and then completed memory testing, indicating whether they remembered hearing each of the words previously presented along with an equal number of matched distracter words. Memory was greatest for words presented early in the awakening, followed by the middle and end of the awakening. High cortical arousal prior to being awoken was associated with better memory, particularly for the early part of the awakening. High autonomic arousal was associated with better memory for the late part of the awakening. Cognitive arousal was not associated with memory. Longer duration of sleep prior to being awoken was associated with better memory for the middle of the awakening. Better memory at baseline was associated with better memory, specifically in the middle of the awakening. Contrary to expectation, memory for the awakening was not associated with accuracy of the perceived length of the awakening. The present study found complementary associations between cortical and autonomic arousal and memory for an awakening from sleep. This suggests that decreasing arousal in both domains may reduce the discrepancy between subjective and objective sleep in insomnia. This also suggests the initial magnitude of decrements in cognitive performance after being awoken are related to deeper proximal sleep initially, while speed of improvement in cognitive performance is related to longer prior sleep duration.
    Type
    text
    Electronic Dissertation
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Graduate College
    Psychology
    Degree Grantor
    University of Arizona
    Collections
    Dissertations

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055 | Tel 520-621-6442
    repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.