Recent research has linked sleep disturbance with anxiety-related symptoms and disorders. However, limited research has attempted to delineate specific mechanisms that may account for this relationship, and the extent to which this relationship is accounted for by depression remains unclear. To address these gaps in the literature, study one examined the links between sleep disturbance and obsessive-compulsive symptoms in a nationally representative sample. Consistent with predictions, results revealed that sleep disturbance severity was associated with OCS severity, even when controlling for depression (and other anxiety-related disorders). Study two examined executive function as a potential mechanism that may account for the relationship between sleep disturbance and repetitive thought, including worry and rumination. Consistent with predictions, results of a structural equation model revealed that executive function significantly accounted for the relationship between sleep disturbance and repetitive thought above and beyond the effects of general distress. Take together, these findings offer preliminary evidence for a unique relationship between sleep disturbance and anxiety-related symptoms that is not accounted for by depression. Further, executive function may function as a mechanism in this relationship. The implications for anxiety-related disorders are discussed.
| Identifer | oai:union.ndltd.org:VANDERBILT/oai:VANDERBILTETD:etd-05232016-160540 |
| Date | 27 May 2016 |
| Creators | Cox, Rebecca Claire |
| Contributors | Bruce Compas, Bunmi Olatunji |
| Publisher | VANDERBILT |
| Source Sets | Vanderbilt University Theses |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.library.vanderbilt.edu/available/etd-05232016-160540/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Vanderbilt University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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