This technique for treating phobias is called: virtual reality therapy.
Step-by-step explanation:
Many therapists use virtual reality therapy to treat people suffering from specific phobias. Virtual reality exposure therapy (VRET) is used during this therapy in safe and controlled manner for the patients to overcome their phobias. A visual immersion device connected to the specially programmed computer is used for treatment to give a simulated experience to the patients.
In the above scenario, Michaela had fear of heights. So she was treated with virtual reality therapy. To keep her relaxed she was given motion-sensitive goggles.