First RCT (n=25+25) showing that consumer VR hardware and software can deliver effective one-session VRET for public speaking anxiety - both therapist-led (d=1.67) and self-led at home (d=1.35), with gains maintained at 6 and 12 months
How this was rated
Pre-specified RCT design with formal randomisation, n=25 per arm initially (later n=25 self-led at home), large within-group effects (d=1.67 and d=1.35) supported by linear mixed effects modeling, durable at 6 and 12 months. Peer-reviewed in Journal of Anxiety Disorders (Elsevier, established peer-reviewed venue). Limitations: the design is one-session therapist-led VRET followed by a 4-week internet-administered transition program - so the d=1.67 figure reflects the combined therapist-led + transition package, not VR alone. The waitlist-as-self-led-treatment crossover is a creative design but limits between-group comparison. The sample is community-recruited PSA, not strictly DSM-diagnosed SAD. The consumer-hardware result is the key contribution and is robust.
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Twenty-five participants were randomised to one-session therapist-led VR exposure therapy for public speaking anxiety using consumer VR hardware and software, followed by a 4-week internet-administered VR-to-in-vivo transition program; another 25 served as a waiting-list. Therapist-led VRET produced a very large effect on self-reported PSA (within Cohen's d = 1.67). The waiting-list then received internet-administered, SELF-LED VRET at home, followed by the same transition program - producing a large effect (d = 1.35). Results were maintained or improved at 6-month and 12-month follow-ups. This is the first published RCT demonstrating that off-the-shelf consumer VR hardware and software can deliver effective PSA exposure therapy in both clinician-supervised and home-based formats.
The first RCT to show that consumer-grade off-the-shelf VR hardware and software can deliver effective public-speaking-anxiety exposure therapy in both therapist-led and self-led-at-home formats, with large within-group effects (d=1.67 and d=1.35) maintained or improved at 6 and 12 months. This is the consumer-hardware deployment study that makes contemporary clinical and home VRET practical - relevant to any clinician choosing between research-grade VR systems and Meta Quest-class consumer hardware. For PWS with PSA comorbidity, this RCT supports the case that consumer-hardware VRET delivered by SLPs (or even self-administered between sessions) is a viable treatment-augmentation strategy.
Key findings
- n=25 + n=25 RCT design: therapist-led one-session VRET arm (n=25) vs waiting-list (n=25). After waitlist completion, the waitlist participants received the internet-administered SELF-LED home version of the same VRET protocol
- Hardware: FIRST GENERATION of consumer VR hardware and software - establishing that off-the-shelf consumer kit is sufficient for clinically effective VRET, not just research-grade systems
- Therapist-led VRET protocol: ONE session of in-person VR exposure followed by a 4-week internet-administered VR-to-in-vivo transition program
- Therapist-led arm produced a LARGE within-group effect on self-reported PSA: Cohen's d = 1.67 (linear mixed effects modeling)
- Self-led home VRET arm (delivered to the former waitlist participants) produced a LARGE within-group effect: Cohen's d = 1.35
- Results were MAINTAINED OR IMPROVED at 6-month and 12-month follow-ups - durable long-term gains, not transient
- Crossover design (waitlist becomes self-led treatment) is creative and ethically generous (no one stays untreated long) but limits clean between-arm comparison at follow-up
- First demonstration that low-cost, off-the-shelf VR can be used to conduct PSA exposure therapy in both clinic and home settings - foundational for contemporary consumer-hardware VRET deployment
Background
Earlier RCTs of VRET for public speaking anxiety (PSA) and social anxiety disorder (SAD) used research-grade VR hardware (eMagin z800, VFX-3D, Virtual-I/0) - costly systems unsuited to routine clinical deployment. By 2018, consumer VR hardware (Oculus Rift, HTC Vive) and consumer VR software platforms had matured. The clinical question: could this off-the-shelf technology deliver effective VRET without research-grade hardware? And could a self-led home-administered VRET work in addition to therapist-led clinic VRET?
What the researchers did
Twenty-five participants with elevated PSA were randomised to one-session therapist-led VR exposure therapy delivered with consumer VR hardware and software, followed by a 4-week internet-administered VR-to-in-vivo transition program. Another 25 served as a waiting-list. After the waiting period, the waitlist participants received an internet-administered, SELF-LED version of the same VRET protocol to conduct at home, again followed by the same 4-week transition program. All outcomes were self-reported PSA, with linear mixed effects modeling for the analyzes.
What they found
- Therapist-led arm: large within-group effect on PSA, Cohen’s d = 1.67.
- Self-led-at-home arm (former waitlist): large within-group effect on PSA, Cohen’s d = 1.35.
- 6-month and 12-month follow-ups: results were maintained or improved.
Why this matters
This was the first RCT to show that off-the-shelf consumer VR hardware and software can deliver clinically effective public-speaking-anxiety exposure therapy in both therapist-led and self-led-at-home formats, with large durable effects. For clinicians considering consumer-hardware VRET (Meta Quest-class systems, including Therapy withVR), this RCT is the foundational clinical-effectiveness justification.
The self-led-at-home arm is particularly important for accessibility - many people with PSA will not present to a clinic, but might use a self-administered home program. The d=1.35 self-led effect (smaller than but in the same large-effect range as the therapist-led d=1.67) supports a stepped-care or home-based model.
Limitations
- One-session VRET combined with a 4-week internet-administered transition program - the d=1.67 figure reflects the combined package, not VR alone.
- Waitlist-to-self-led crossover design - creative and ethically generous, but limits clean between-arm comparison at follow-up.
- Community-recruited PSA, not strictly DSM-diagnosed SAD - the sample’s clinical severity may be lower than in SAD-specific RCTs.
- Self-reported PSA is the primary outcome; behavioral and clinician-rated measures are limited.
- First-generation consumer VR hardware of 2018 - contemporary HMDs (Meta Quest 2/3) have substantially better visual fidelity and tracking, which is relevant when projecting these findings to current practice.
- Single-site Swedish-led collaboration - cultural and regulatory generalization requires replication.
Implications for practice
For clinicians choosing between research-grade VR systems and consumer-grade Meta Quest-class hardware, this RCT is the clinical-effectiveness justification for choosing consumer hardware: the gains are large, durable, and achievable both in-clinic and at home. The one-session-plus-internet-transition protocol is a particularly practical model for busy SLP and CBT caseloads. For PWS with PSA comorbidity, this RCT supports the case that consumer-hardware VRET delivered by SLPs - or self-administered between sessions - is a viable treatment-augmentation strategy. For Therapy withVR or similar consumer-hardware-based products, this study is foundational supporting evidence that the technology category (consumer VR + structured exposure protocol) works clinically.
Cite this study
If you reference this study in your work, the canonical citation formats are:
@article{lindner2019,
author = {Lindner, P. and Miloff, A. and Fagernäs, S. and Andersen, J. and Sigeman, M. and Andersson, G. and Furmark, T. and Carlbring, P.},
title = {Therapist-led and self-led one-session virtual reality exposure therapy for public speaking anxiety with consumer hardware and software: A randomized controlled trial},
journal = {Journal of Anxiety Disorders},
year = {2019},
doi = {10.1016/j.janxdis.2018.07.003},
url = {https://withvr.app/evidence/studies/lindner-2019}
}TY - JOUR
AU - Lindner, P.
AU - Miloff, A.
AU - Fagernäs, S.
AU - Andersen, J.
AU - Sigeman, M.
AU - Andersson, G.
AU - Furmark, T.
AU - Carlbring, P.
TI - Therapist-led and self-led one-session virtual reality exposure therapy for public speaking anxiety with consumer hardware and software: A randomized controlled trial
JO - Journal of Anxiety Disorders
PY - 2019
DO - 10.1016/j.janxdis.2018.07.003
UR - https://withvr.app/evidence/studies/lindner-2019
ER - Know of research that should be in this hub? If a relevant peer-reviewed study is not listed here, send the reference to hello@withvr.app. The hub is kept up to date as the literature grows.
Funding & independence
Affiliations: Department of Psychology, Stockholm University; Center for Psychiatry Research, Karolinska Institutet; Department of Psychology, Uppsala University; Department of Behavioral Sciences and Learning, Linköping University; Department of Psychology, University of Southern Denmark. Funding sources not extracted in detail from the abstract excerpt. Peer-reviewed in Journal of Anxiety Disorders (Elsevier). No withVR BV involvement in funding, study design, or authorship. Summary prepared independently by withVR using the published peer-reviewed paper. The VR system used was first-generation consumer hardware and software, NOT Therapy withVR or Research withVR.