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- Carlbring, Per, et al.
(author)
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The efficacy of internet-based virtual reality exposure therapy for public speaking anxiety : A randomized controlled trial
- 2017
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Conference paper (other academic/artistic)abstract
- Fear of public speaking is common and for some individuals this interferes significantly with the person's life and causes marked distress. We wanted to test a newly developed virtual reality assisted 1-session in-person treatment (3 hours). The therapist guided session consisted of a series of behavioral experiments based on the expectancy violation principle. This was followed by a 4-week booster intervention delivered via the internet. Following a diagnostic interview a total of 50 individuals with a score of ≥ 60 on the Personal Report of Public Speaking Anxiety questionnaire were randomized to a treatment or a control condition. A total of 78% also met criteria for social anxiety disorder. Considering only having had one treatment session in-person the preliminary results were promising with a between group effect size on the primary outcome (Public Speaking Anxiety Scale) of Cohen’s d=1.32 before commencing the internet-based booster program. Four weeks later the between-group effect size was d=1.90. However, on the secondary outcome measures the effect sizes were more often moderate than large. At the time of the conference 6-month follow-up data will be available in addition to the already collected post-assessment data (analyzed according to the intention-to-treat principle).
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| 5. |
- Carlbring, Per, et al.
(author)
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Therapist and Internet Administered One-Session Virtual Reality Exposure Therapy for Public Speaking Anxiety : A Randomized Controlled Trial
- 2018
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Conference paper (other academic/artistic)abstract
- Fear of public speaking is common and for some individuals this interferes significantly with the person's life and causes marked distress. We wanted to test a newly developed virtual reality assisted 1-session in-person treatment (3 hours). The therapist guided session consisted of a series of behavioral experiments based on the expectancy violation principle. This was followed by a 4-week booster intervention delivered via the internet. Following a diagnostic interview a total of 50 individuals with a score of ≥ 60 on the Personal Report of Public Speaking Anxiety questionnaire were randomized to a treatment or a control condition. A total of 78% also met criteria for social anxiety disorder. Considering only having had one treatment session in-person the preliminary results were promising with a between group effect size on the primary outcome (Public Speaking Anxiety Scale) of Cohen’s d=1.32 before commencing the internet-based booster program. Four weeks later the between-group effect size was d=1.90. However, on the secondary outcome measures the effect sizes were more often moderate than large. At the time of the conference 6-month follow-up data will be available in addition to the already collected post-assessment data (analyzed according to the intention-to-treat principle).
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- Fischer, H, et al.
(author)
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Fear conditioning and brain activity : a positron emission tomography study in humans.
- 2000
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In: Behav Neurosci. - 0735-7044. ; 114:4, s. 671-80
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Journal article (other academic/artistic)abstract
- Regional cerebral blood flow (rCBF) was measured with H2 (15)O positron emission tomography in 8 healthy women before and after fear conditioning (i.e., paired shocks) and unpaired shocks to videotape cues. Conditioning was supported by enhanced peripheral nervous system recordings and subjective ratings. Fear conditioning increased rCBF in the central gray of the midbrain; bilaterally in the hypothalamus, the thalamus, and the left striatum; and in the right and left anterior cingulate and right prefrontal cortices. Regional CBF was attenuated bilaterally in the right and left prefrontal, temporal (including the amygdala), parietal, and occipital cortices, and in the left orbitofrontal cortex. When compared with unpaired shock presentations, fear conditioning resulted in elevated rCBF in the left cerebellum. Hence, in the present paradigm, only neural activity in the left cerebellum solely reflected processes associated with true Pavlovian conditioning.
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