Two process model

• What is reciprocal inhibition?

  Fear and relaxation cannot happen at the same time
• Symptom substitution

  Treatments for phobias don't treat the underlying cause, only the symptoms. This can lead to the symptoms being "substituted" to another phobia by associating the unconditioned response (fear from the traumatic event) with another neutral stimulus (another phobic stimulus) instead of the original, which creates another phobia. This makes the treatments less effective.