The effectiveness of an optimized group exposure treatment is investigated in spider-fearful individuals. Participants will undergo an optimized standardized exposure treatment. After receiving information about the treatment and the phobic stimulus (spider) through a psychoeducation video, participants will observe an exposure treatment of another fearful person, either live or by watching a movie of an exposure treatment online. Subsequently, participants will undergo a live in vivo exposure treatment conducted in a group setting. The effectiveness of the treatment is measured by symptom improvement according to online behavioral avoidance tests and subjective ratings immediately after training and one week later.
Age range
18 Years
Sex
ALL
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Spider Phobia Questionnaire (SPQ)
Timeframe: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)
Change in avoidance behavior (online virtual Behavioral Approach Task, vBATon)
Timeframe: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)
Change in spider fear: Spider Anxiety Questionnaire (FSQ/SAF)
Timeframe: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)