From: Placebo and other psychological interactions in headache treatment
1. Factors directly linked to the treatment |
 Image of the treatment, announce, expectancy |
 Repetition of the procedure and conditioning |
 Touch? |
 Specific action on headache pathophysiology |
2. Factors non directly linked to the treatment |
 Non-specific psychological support |
 Words of doctors modifying the beliefs |
3. Factors modifying the course of the underlying disease |
 Optimized attack control |
 Effect on the concomitant psychopathology |