Participants who meet the inclusion criteria will be invited to participate in the initial treatment session. They will be also required to purchase a flight ticket during the six months after the end of the treatment. Participants will be treated weekly for eight individual sessions. While the first two sessions involve preparation and training, exposure will be conducted between the third and eighth session. The exposure sessions' structure and content will be the same in all conditions. Nevertheless, the VRET-M group will experience vibrotactile cues, while the VRET-B group will not. Furthermore, the IET group will experience its own subjective imagined environment without any external stimulation.
