Bringing light into darkness: A multiple baseline mixed methods case series evaluation of Augmented Depression...

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Depression is characterized by heightened negative valence system (NVS) and reduced positive valence system (PVS) functioning.
• Current treatments primarily address NVS, potentially limiting efficacy by neglecting PVS.
• A novel approach is needed to concurrently target both NVS and PVS for improved depression outcomes and wellbeing.

Purpose of the Study:

• To preliminarily evaluate Augmented Depression Therapy (ADepT), a novel treatment for depression.
• ADepT aims to reduce depressive symptoms and enhance wellbeing by targeting both NVS and PVS.
• Assess the feasibility, acceptability, and preliminary efficacy of ADepT.

Main Methods:

• A mixed-methods, multiple randomized baseline case series design was employed.
• Eleven clinically depressed participants underwent the ADepT intervention.
• Intensive time-series analyses, benchmarking, and qualitative interviews were used for evaluation.

Main Results:

• 7/11 participants showed improvement in both wellbeing and depression.
• 9/11 participants achieved reliable and clinically significant improvement in at least one outcome.
• Group-level analyses revealed significant pre- to post-treatment changes across all measured outcomes.
• Effect sizes were comparable or superior to existing depression treatments, with sustained gains at one-year follow-up.

Conclusions:

• ADepT demonstrates preliminary support as a feasible and acceptable novel treatment for depression.
• The findings suggest ADepT's potential to improve both depression and wellbeing.
• Further randomized controlled trials are warranted to directly compare ADepT with existing therapies.