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This study reports the 12-month follow-up from patients with the fear of flying who were treated in a controlled study and randomly assigned (n = 49) to virtual reality exposure (VRE) therapy, standard exposure (SE) therapy, or to a wait-list control (WL). VRE and SE were equally superior to WL. At 12 months posttreatment, data were gathered on 24 of the 30 (80%) patients who were assigned to VRE or SE. Patients maintained their treatment gains, and 92% of VRE participants and 91% of SE participants had flown on a real airplane since the graduation flight. This is the 1st year-long follow-up of patients having been treated with VRE and indicates that short-term treatment can have lasting effects.
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Rothbaum et al. (2002) studied this question.
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