Recurrent Major Depression
Conditions
Keywords
major depression, Mindfulness based cognitive therapy, MBCT, fMRI, recurrent depression, brain
Brief summary
The primary objective of the study is to examine the efficacy of mindfulness based cognitive therapy (MBCT) on the prevention of relapse in women with a history of depression. Additionally, the investigators will explore how brain activity might be affected in several brain regions as a result of MBCT. This study consists of two groups, a patient group consisting of women with a history of depression and a control group consisting of healthy women. All participants within the patient group will receive an 8-week MBCT intervention program and will continue their normal medication treatment. Participants will undergo, both pre and post intervention, various behavioral and neuroimaging tasks to assess intervention effects of well-established psychological measurements related to cognitive and emotional function.
Detailed description
Overall, this study aims to characterize the neural and psychological effects of an eight-week mindfulness based cognitive therapy (MBCT) intervention (online group class) in preventing depressive relapse in women with past history of major depression when exposed to different forms of self-relevant and context-specific emotional challenge. The investigators also aim to establish psychological and neural mechanisms contributing to depressive symptoms prior to intervention. A key objective of the study is to assess baseline markers of depressive symptoms and possible change resulting from the MBCT intervention from interdisciplinary perspectives, including the psychological perspective (i.e. measured with computer-based tasks, self-report ratings, questionnaires, etc.) and the neural perspective (neural activity measured with functional MRI). In addition, a critical factor the investigators will be observing is the shift from more 'narrative' to 'experiential' forms of self-related awareness as a function of MBCT. Narrative self-focus refers to a concept of self that is extended in time, including past memories and intentions for the future, together with abstract self-representations in relation to socio-emotional values. In contrast, the experiential self-focus refers to a more immediate self-experience and is associated with greater awareness of external stimuli and internal somatic-visceral bodily states. MBSR has been shown to increase brain activity in regions relevant for conferring experiential self-focus (insula-opercula, dorsal anterior cingulate/supplementary motor area), while decreasing responses in rostral-medial, lateral frontal and hippocampal regions that support the narrative mode of self-focus. Such changes in brain activity are associated with increased well-being. Brain regions to be examined include: 1) insula-opercula and dorsal anterior cingulate brain regions responsible for mediating 'narrative' self-focus thinking styles; 2) rostral-medial and lateral frontal, and hippocampal brain regions responsible for mediating 'experiential' self-focus thinking styles; and 3) default mode and insular-paralimbic networks thought to be involved in the generation and maintenance of depressive episodes. Behavioral Tasks 1. Breath Count Task - an objective behavioral measure of mindfulness; Dot-Probe Task - a measure of negative emotion attentional bias 2. Autobiographical Memory Interview - a means to quantify the nature of participants' autobiographical memory recall in an ecologically-valid manner 3. Free-Association Semantic Task - a measure of associative processing 4. Emotional Movies - a measure of emotional reactivity 5. N-Back Task - a measure of working memory. Neuroimaging Tasks 1. Rest Task - a means to examine brain activity and thought content during an unconstrained task 2. 'Narrative' vs 'Experiential' Task during Autobiographical Memory Recall vs. n-back - a means to examine brain activity during 'narrative' vs 'experiential' forms of self-focus during autobiographical memory recall, vs. a demanding working memory task. 3. Self-Syllable Judgment Task - a means to examine brain activity during self-judgment vs non-self-judgment tasks. Thought Sampling Participants will undergo an experience sampling paradigm in which daily thought surveys will be administered multiple times per day over the course of 7-10 days. These thought sampling surveys are designed to estimate several factors characterizing the occurrence of spontaneous thoughts in real-world settings as well as the nature and content of individuals' thoughts in real-world settings.
Interventions
BEHAVIORALOnline mindfulness based cognitive therapy intervention
MBCT is based on Mindfulness-Based Stress Reduction (MBSR), combining principles of cognitive therapy (CT) with those of mindfulness meditation to prevent depression relapse. Both MBSR and MBCT use contemplative practices, including sitting meditation, body scan and walking meditation, as core methods to teach awareness of negative thoughts and emotions with the aim of disengaging from pervasive patterns of ruminative self-centered mentation. Participants will be given an initial orientation session and then complete an online 8-week MBCT program. Each week participants will take part in one 2-hour online group session and will complete homework assignments anticipated to take 15-30 minutes per day to complete. Additionally, weekly phone coaching will be offered based on the modified tele-coach manual developed by Mohr and colleagues (Duffecy et al. 2010).
Sponsors
Brain & Behavior Research Foundation
Mind and Life Institute, Hadley, Massachusetts
University of Arizona
University of Toronto
Children's Hospital Medical Center, Cincinnati
University of Colorado, Boulder
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE
Intervention model description
One group of 25 currently remitted recurrent major depression patients undergoing mindfulness based cognitive therapy for 8 weeks and one group of 25 matched healthy controls to control for time-repetition effects on brain activity and task performance
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
Inclusion Criteria: 1. Women with past history of recurrent major depressive disorder 1. Women who are not currently pregnant 2. Meeting criteria for prior depression (at least two episodes) and showing residual symptoms of depression (PHQ-9 score of 5-12) 3. Not meeting criteria for a current active depressive episode (SCID criteria) 4. Having access to internet and a smartphone with data plan 5. Receiving no antidepressant/anxiolytic medication or under a stable regime of antidepressants/anxiolytics 2. Healthy control women 1. Women that are not currently pregnant 2. Do not meet criteria for prior or current depression 3. Have access to internet and a smartphone with data plan
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Everyday thinking patterns | Up to 15 weeks | Measured with experience sampling in daily life, questions developed for our study |
| Occurrence of mood episodes and post treatment relapse rate | Throughout study (pre-intervention to 6 months post-intervention) | Assessed via clinical interview |
| Depression symptoms | Throughout study (pre-intervention to 6 months post-intervention) | Assessed via Patient Health Questionnaire-9 (PHQ-9; Kroenke, Spitzer, & Williams, 2001) |
| Rumination | Throughout study (pre-intervention to 6 months post-intervention) | Rumination score measured using the Ruminative Response Scale (RRS; Nolen-Hoeksema 1987;1999). |
| Cognitive Decentering | Throughout study (pre-intervention to 6 months post-intervention) | Score in the Experiences Questionnaire (Fresco, Moore, Dulmen, Segal, Ma, Teasdale, & Williams, 2007) |
| Self-Compassion | Throughout study (pre-intervention to 6 months post-intervention) | Self-compassion scores measured using the Self-Compassion Scale (SCS: Neff, 2003). |
| Mindfulness | Throughout study (pre-intervention to 6 months post-intervention) | Score on the Five-factor Mindfulness Scale (FFMQ; Baer, Smith, Hopkins, Krietemeyer & Toney, 2006) |
| Autobiographical Memory | Throughout study (pre-intervention to 6 months post-intervention) | Assessed via the Autobiographical Memory Test (Williams & Broadbent, 1986) |
| Self concept | Throughout study (pre-intervention to 6 months post-intervention) | Assessed via the Twenty Statements Test (Kuhn and McPartland, 1954) |
| Brain activity during autobiographical memory recall | Up to 15 weeks | Measured using task-based fMRI bold sequence |
| Brain activity in the absence of a task | Up to 15 weeks | Measured using fMRI resting-state bold sequence |
| Brain activity during processing of self-referential traits | Up to 15 weeks | Measured using task-based fMRI bold sequence |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Mindfulness | Up to 15 weeks | Assessed using the previously validated breath counting task (Levinson et al., 2014) |
| Lexical Associations | Up to 15 weeks | Assessed using the Thought fluency task (Andrews-Hanna et al., in prep.) |
| Worry | Throughout study (pre-intervention to 6 months post-intervention) | Worry score using the Penn State Worry Questionnaire (PSWQ; Meyer, Miller, Metzger, & Borkovec, 1990). |
| Fatigue | Throughout study (pre-intervention to 6 months post-intervention) | Assessed using the Multidimensional Fatigue Inventory (Smets et al. 1995). |
| Physical pain | Throughout study (pre-intervention to 6 months post-intervention) | Assessed using the Brief Pain Inventory-short form (Cleeland and Ryan, 1994). |
| Expectations about treatment outcome | Pre-intervention | Score in the Credibility/Expectancy Questionnaire (CEQ, Devilly, G. J., & Borkovec, T. D. 2000) |
| Client satisfaction about treatment outcome | Up to 15 weeks | Assessed using the Client Satisfaction Questionnaire (CSQ, Attkisson & Greenfield, 2009). |
| Positive and negative emotion | Up to 15 weeks | Assessed by measuring responses while watching emotional movies (based on Gruber et al, 2008) |
| Positive and negative affect | Throughout study (pre-intervention to 6 months post-intervention) | Assessed using the Positive and Negative Affect Scale (PANAS; Watson & Clark, 1994) |
| Emotion-induced attentional bias | Up to 15 weeks | Assessed using the dot-brobe task (Kruijt et al., 2016) |
| Mind wandering | Throughout study (pre-intervention to 6 months post-intervention) | Score on the Imaginal Process Inventory (IPI, Singer et al., 1963) |
| Well-being | Throughout study (pre-intervention to 6 months post-intervention) | Assessed via the Ryff Scales of Psychological Well-Being (RYFF; Ryff, 1989; Ryff & Keyes, 1995) |
Outcome results
None listed