Patients diagnosed with mild to moderate unipolar depression (major depressive disorder, MDD) Mental and Behavioural Disorders
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Right-handed adults (18 - 65 years of age) with normal vision. 2. Primary diagnosis of unipolar depression based on DSM-IV. 3. Currently in a depressive episode with/without stable SSRI antidepressant medication or oral contraceptives and with/without co-morbid anxiety. 4. Fluent in German without any intellectual deficits (basic education completed).
Exclusion criteria
Exclusion criteria: 1. Relevant Axis-1disorders: F0 (organic disorders), F1 (alcohol, opioids, etc), F2 (psychotic disorders), bipolar disorder, prominent F4 disorders (i.e., PTSD, Panic disorder), main diagnosis F6 (particularly emotionally unstable personality disorder), known F7 disorder. 2. Neurological comorbidities such as epilepsy, stroke, brain tumor, and traumatic brain injury based on the MINI Neuropsychiatric assessment. 3. Patients on antipsychotics, benzodiazepines, medications such as Temesta (>1-2 mg/day), Methadon or Haloperidol except for SSRI antidepressants. 4. Alcohol, nicotine, or other substance dependence per DSM-IV criteria. 5. MRI contraindications such as pregnancy, lactation, brain surgery, or metallic implants.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Depressive symptoms measured using clinician administered 21-item Hamilton Depression Rating Scale (HAMD-21) and the Montgomery-Asberg Depression Rating Scale (MADRS) at pre-training (visit 1), post-training (visit 4) and follow-up (visit 5). | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Positive and negative affectivity measured using the self-rated Snaith-Hamilton Pleasure Scale for Depression (SHAPS-D) and State and Trait Anxiety Inventory (STAI), respectively, at pre-, post-training and follow-up. 2. Self-control and self-efficacy assessment performed using the self-rated Competence and Control Beliefs Questionnaire (FKK) at pre-, post-training and follow-up. 3. Mood states measured using the Multidimensional Mood State Questionnaire (MDBF) at pre-, post-training and follow-up. 4. Valence and arousal ratings of happy, fearful and neutral facial stimuli measured by the face rating task at pre-, post-training and follow-up. 5. Patients’ amygdala activity measured in response to the happy, fearful, and neutral facial stimuli in the pre- and post-training transfer tasks. 6. Patients’ amygdala activity measured in response to the happy, fearful, and neutral facial stimuli using dynamic emotion matching task at pre-, post-training and follow-up. 7. Resting-state functional connectivity measured at pre-, post-training and follow-up. | — |
Countries
Switzerland