Actively Recruiting
Ecological Momentary Intervention for Reward in Anhedonia
Led by Philipps University Marburg · Updated on 2026-01-09
60
Participants Needed
1
Research Sites
28 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The present study evaluates a two week ecological momentary intervention (EMI) in reducing anhedonia and psychological distress (i.e. elevated depression, stress and anxiety). Participants in the experimental group complete three daily exercises targeting reward-related processes, including positive mental imagery, savoring, gratitude, taking ownership for positive experience, and silver lining. These components were selected to improve reward anticipation as well as reward consumption and reward learning as the underlying mechanisms of anhedonia. An active control group receives progressive muscle relaxation training, matched in format and frequency. Exercise units are presented using audio recordings via smartphone app.
CONDITIONS
Official Title
Ecological Momentary Intervention for Reward in Anhedonia
Who Can Participate
Eligibility Criteria
You may qualify if you...
- German speaking
- Have a smartphone and willingness to participate in repeated training units and questions via app
- Clinically elevated anhedonia (SHAPS 25) and elevated depression (DASS-21-Depression 10), or elevated anxiety (DASS-21-Anxiety 6), or elevated stress (DASS-21-Stress 10)
You will not qualify if you...
- Taking psychotropic medication
- Currently undergoing psychotherapy or planning to start psychotherapy during participation
- Suicidality, lifetime diagnosis of bipolar disorder, or psychotic episodes
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Philipps-University Marburg
Marburg, Hesse, Germany, 35037
Actively Recruiting
Research Team
M
Martin J Skopp, M.Sc.
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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