Virtual reality exposure therapy for social anxiety disorder
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Virtual reality exposure therapy (VRET) is currently being used to treat social anxiety disorder (SAD). Researchers conducted a meta-analysis of studies that investigated the efficacy of VRET for SAD.

Inclusion criteria were:
(1) studies that targeted patients with SAD or related phobias; (2) studies where VRET was conducted for at least three sessions;
(3) studies that included at least 10 participants.
The primary outcome was social anxiety evaluation score change. Hedges' g and its 95% confidence intervals were calculated using random-effect models. The secondary outcome was the risk ratio for treatment discontinuation.

Results
22 studies (n = 703) met the inclusion criteria and were analyzed.
The efficacy of VRET for SAD was significant and continued over a long-term follow-up period:
Hedges' g for effect size at post-intervention, ?0.86;
3 months post-intervention, ?1.03;
6 months post-intervention, ?1.14
12 months post-intervention, ?0.74
When compared to in vivo exposure, the efficacy of VRET was similar at post-intervention but became inferior at later follow-up points. Participant dropout rates showed no significant difference compared to in vivo exposure.

Conclusively, VRET is an acceptable treatment for SAD patients that has significant, long-lasting efficacy, although it is possible that during long-term follow-up, VRET efficacy lessens as compared to in vivo exposure.

Source: https://www.cambridge.org/core/journals/psychological-medicine/article/abs/virtual-reality-exposure-therapy-for-social-anxiety-disorder-a-systematic-review-and-metaanalysis/04F84DD9C217D582E03D0638E2E65FAE
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