Online study for patients with trichotillomania. 4 main hypothesis.

1. Alexithymia and Trichotillomania correlated and regression analyses find association between them
2. we will be able to find patient who have never been treated before. Those will suffer to the same amount as previously treated patients
3. Decoupling will be more helpful than progressive muscle relaxation
4. different constructs of emotion regulation will show different trait and state characteristics in patients with trichotillomania

Randomized controlled trial with about 100 participants.

Inclusion Criteria:

• suffering from trichotillomania 18 to 65 years old

Exclusion Criteria:

• current drug or alcohol addiction current psychosis