Description
Life expectancy has increased drastically in the United States. Longer life is too often associated with illness, discomfort, disability, and dependency. Progress toward promoting health and well-being as we age must include the identification of novel treatment targets that are safe, powerful, inexpensive, and deployable. The proposed research will test one such target-patient memory for the contents of treatment.
Over 5 years, we will recruit adults who are 50 years and older and who are experiencing sleep and circadian problems (n = 178, including 20% for attrition). Participants will be randomly allocated to TranS-C plus the MSI (“TranS-C+MSI”) or TranS-C alone via eight 50-minute, weekly, individual sessions. Assessments will be conducted at baseline, post-treatment, and at 6- and 12-month follow-up (6FU and 12FU).
Specific Aim 1: To evaluate if adding the MSI to TranS-C (a) improves sleep and circadian functioning, (b) improves daytime functioning, (c) improves well-being and (d) improves patient memory by comparing the effects of TranS-C+MSI vs. TranS-C alone. Hypothesis 1. Compared to TranS-C alone, people who receive TranS-C+MSI will improve more on all outcomes at post-treatment, 6FU and 12FU.
Specific Aim 2: To evaluate if patient memory for treatment mediates the relation between treatment condition and sleep and circadian functioning. Hypothesis 2. TranS-C+MSI will be associated with better memory for treatment relative to TranS-C alone, and in turn, better memory for treatment will be associated with better sleep and circadian functioning immediately following treatment and at 6FU and 12FU.
Specific Aim 3: To evaluate if subgroups hypothesized to derive added benefit from memory support moderate (a) patient memory for treatment and (b) treatment outcome. Hypothesis 3. Treatment effects for TranS-C+MSI will be larger at post-treatment for those who are older, have fewer years of education, poorer baseline cognitive functioning and more severe baseline sleep disruption and sleep-related impairment.
Exploratory analyses will compare the treatments on (a) patient adherence as well as patient-rated treatment credibility and utilization of treatment elements and (b) provider-rated acceptability, appropriateness, and feasibility.