FMRI activation during executive function predicts response to cognitive behavioral therapy in older, depressed adults.

OBJECTIVES: To test our hypothesis that pre-treatment executive function and brain regional activation during executive function would discriminate between responders and non-responders to cognitive behavioral therapy (CBT) in elderly depressed outpatients. DESIGN: Clinical cohort study. SETTING: University-affiliated hospital. PARTICIPANTS: Sixty outpatients (age 59 years and older) completed 12 weeks of CBT between July 2010 and December 2011. Forty-four completed fMRI procedures. MEASUREMENTS: The main outcome consisted of a conversion from a clinical diagnosis (Mini-International Neuropsychiatric Interview) of depression to no clinical diagnosis of depression or a significant improvement in diagnostic criteria. Brain activation measured by functional magnetic resonance imaging during the Wisconsin Card Sorting task (WCST) was the primary predictor variable. RESULTS: 67% of patients had a positive response to CBT. Decreased activation in the left inferior frontal triangle and right superior frontal gyrus as well as increased activity in the right middle frontal gyrus and left superior frontal gyrus predicted a positive response to CBT. Demographic and neurocognitive measures of WCST performance were not significant predictors of a positive CBT outcome, whereas the measure of WCST-induced activity in the prefrontal cortex was a significant predictor. CONCLUSIONS: These data are among the first to suggest that measures of prefrontal brain activation during executive functioning predict response to CBT in older adults. Further exploration of the specific underlying processes that these prefrontal cortical regions are engaging that contributes to better CBT outcomes is warranted in larger, randomized studies.

Psychosocial predictors of treatment response to cognitive-behavior therapy for late-life depression: an exploratory study.

OBJECTIVE: The primary objective of this study was to examine a variety of potential predictors of response to Cognitive Behavioral Therapy (CBT) in depressed older adults. METHOD: Sixty older adults with a clinical diagnosis of major or minor depression or dysthymic disorder received 12 individual sessions of CBT over a three- to four-month-period. The BDI-II was administered pre- and post-intervention to assess change in the level of depression. A cutoff score of 13 or less at post was used to determine positive treatment response. A variety of measures (obtained at baseline) were evaluated using hierarchical regression techniques to predict improvement following treatment. RESULTS: Individuals who showed greater improvement were: (a) more open to new experiences; (b) less negatively affected by past stressors; (c) less inclined to have an external locus of control but more likely to cite others as responsible for negative stress in their lives; and (d) were more likely to seek emotional support when symptomatic. Lower education level and reported use of active coping strategies at baseline were associated with less improvement. Other variables (e.g., age, overall physical health, and cognitive status) were not associated with treatment response. Use of logistic regression to predict responders vs. nonresponders yielded a similar pattern. CONCLUSION: These findings agree with prior research confirming the effectiveness of a brief CBT intervention for older depressed persons and suggest further exploration of several psychosocial factors that may contribute to a stronger response to CBT.

Study protocol for a hybrid effectiveness-implementation trial of the Building Better Caregivers online workshop for rural family/friend caregivers of people living with dementia.

INTRODUCTION: Dementia caregiving is complex and disproportionally burdens caregivers living in rural areas due to fewer resources and formal support systems. There is an immediate need to identify effective, scalable, and accessible online programs to support rural caregivers' well-being. Building Better Caregivers (BBC), a possible solution, is an asynchronous online 6-week, interactive, and skills-building workshop developed for caregivers of persons with dementia. This research aims to assess the effectiveness and implementation of the BBC workshop when delivered among rural dementia caregivers in the United States. METHODS: A hybrid effectiveness and implementation trial applying mixed methods will be conducted in collaboration with local, state, and national partnering organizations. Eligible participants live in a rural area of the United States, give care at least 10 h a week for a family member or friend with dementia, and have internet access. Evaluation is based on the RE-AIM framework. Effectiveness outcomes are assessed using a randomized control trial. Caregivers are randomly assigned to the BBC workshop (intervention) or attention control group. Implementation outcomes are assessed using surveys and debriefing interviews from partnering organizations and participants. The study protocol including the study design, methods of recruitment and assessment, and outcomes are described. CONCLUSION: This is the first known study to evaluate both the effectiveness and implementation of a caregiver support intervention under real-world conditions in rural areas. If successful, this online workshop will be a practical and acceptable approach for promoting the health and well-being of geographically isolated rural dementia caregivers.

A pilot of an intervention delivered to Chinese- and Spanish-speaking carers of people with dementia in Australia.

There are limited language- and culture-specific support programs for carers of people with dementia living in Australia. A group intervention for use with Chinese and Spanish speakers in the United States was adapted to the Australian context, and a pilot study was undertaken with these 2 communities. The intervention is based on a cognitive behavioral therapy approach and was delivered by bilingual health professionals. The adapted material comprised 7 sessions, spanning 2 hours in duration. All 22 participants completed the Depression Anxiety and Stress Scale-Short form (DASS-21) pre- and postintervention. A significant decrease in depression, anxiety, and stress was observed among Spanish speakers; a significant decrease in depression and anxiety was present among the Chinese speakers. The implications are considered in the context of Australia's changing aged care service system.