Date of Award
Summer 2015
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Psychology
Committee Director
Serina A. Neumann
Committee Member
Desideria S. Hacker
Committee Member
Michael L. Stutts
Committee Member
Richard W. Handel
Committee Member
Hamid Okhravi
Abstract
The aim of the current study was to explore the effects of the medication Donepezil (Aricept®) on cardiac autonomic function for individuals diagnosed with mild to moderate (probable) Alzheimer’s disease (AD). Using age (± 3 years) and gender matched controls, differences in heart rate variability (HRV) among individuals with Alzheimer’s disease were compared to healthy controls over a period of six months (session 1 [baseline], session 2 [3 months], and session 3 [6 months]) in both supine and standing positions. HRV was obtained through frequency-domain (Low Frequency Power, High Frequency Power, RMSSD, LF/HF Ratio) and time-domain (six minutes) measures using ECG technology. Data were analyzed using 2x2x2 (AD group n= 12; HC group n= 12) and 2x2x3 (AD group n= 8; HC group n= 8) repeated measures ANCOVA’s while controlling for age, gender, body mass index (BMI), blood pressure, medications, dose of Donepezil (Aricept®), alcohol use, caffeine use, and physical activity. Results from the ANCOVA did not reveal statistically significant between group differences for the HRV frequency-domain measures. However, data indicated a trend towards greater reductions in normalized high frequency power (parasympathetic depression) and greater increases in normalized low frequency power (sympathetic exacerbation) among the AD group versus healthy controls at all three time points despite the use of Donepezil (Aricept®).
Rights
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DOI
10.25777/sxze-8j56
ISBN
9781339109190
Recommended Citation
Hackett, Lewis P..
"Donepezil’s Effect on Cardiac Function in Patients with Alzheimer’s Disease through an In Vivo, Non Invasive Measure of Cardiac Autonomic Function"
(2015). Doctor of Philosophy (PhD), Dissertation, Psychology, Old Dominion University, DOI: 10.25777/sxze-8j56
https://digitalcommons.odu.edu/psychology_etds/10
Comments
The VIRGINIA CONSORTIUM PROGRAM IN CLINICAL PSYCHOLOGY is a joint program of Eastern Virginia Medical School, Norfolk State University, and Old Dominion University.