In Vivo Exposure vs. Videochat-Based Vicarious Exposure

After screening (including parts of the Mini-DIPS), participants will receive a pre-assessment with a baseline heartrate measurement, self-report measures and two BATs (with the treated spider and the non-treated spider). All participants receive a brief psychoeducation \& video demonstration of exposure steps. Participants are randomly assigned to the three study arms and are then set to receive a single session of either in vivo exposure (IVET), videochat based vicarious exposure (VicET) or neither (Waiting List Control, WLC). Approximately 24 hours later, the two BATs with both spiders, a slightly reduced set of self-report measures and an interview will conduct the post-assessment. The order of all BATs, the spider individuals (treated vs. non-treated spider) and assignment to study arms will be randomized using a list that will be worked through in a sequence determined using "www.r