| Baseline I | Baseline II | Intervention I | Intervention II | Post-Intervention | Follow-up I | Follow-up II |
---|---|---|---|---|---|---|---|
Blood sample | X | Â | Â | Â | Â | Â | X |
Questionnaires | |||||||
 Scale of Self-Efficacy | X |  |  |  |  |  |  |
 Spontaneous use of Imagery | X |  |  |  |  |  |  |
 Neo-Five Factor Inventory | X |  |  |  |  |  |  |
 State-Trait Anxiety Inventory | X |  |  |  |  |  |  |
 Profile of Mood States |  |  | X | X |  |  |  |
 Positie and Negative Affect Schedule |  |  | X | X |  |  |  |
Cognition | |||||||
 Montreal Cognitive Assessmenta | X |  |  |  |  |  |  |
 Cognitive Functions Dementiab | X |  |  |  |  |  |  |
 Stroop | X |  |  |  |  |  |  |
 Digit Span | X |  |  |  |  |  |  |
 Verbal Learning and Memory Test |  | X | X | X | X | X | X |
MR Imaging | |||||||
 Structural MRI |  | X |  |  | X |  | X |
 Functional MRI |  | X |  |  | X |  | X |
 Neurofeedback |  |  | X | X |  |  |  |