VR conversational practice helps people with aphasia communicate more effectively
How this was rated
Small RCT (n=36) in post-stroke chronic aphasia. No between-group significant differences detected; within-group patterns favor VR. Sample size limits precision.
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A pilot RCT with 36 people with chronic aphasia comparing semi-immersive VR conversational practice (NeuroVR 2.0 on a 50-inch curved screen - not a headset) to conventional therapy over 6 months. No significant between-group differences were found on any measure. Within-group analysis showed the VR group improved on more domains, and only the VR group improved on self-esteem and emotional/mood state.
A small RCT (n=36) in chronic aphasia using non-headset VR. No significant between-group differences found; within-group analysis favors VR. Effect size precision is limited by sample size.
Key findings
- No significant between-group differences were found post-treatment on any measure.
- Within-group analysis: VR group improved on oral comprehension, repetition, and written language; control group improved on fewer variables.
- Only the VR group showed improvement on self-esteem and emotional/mood state measures.
- Platform note: NeuroVR 2.0 semi-immersive system (50-inch curved screen, no helmet worn) across 5 virtual environments; 48 sessions total (2x weekly for 6 months).
Background
People with aphasia often find that communication support focuses on specific language skills in structured tasks, which may not translate directly into the fluid, unpredictable nature of real conversation. Conversational approaches aim to bridge this gap, but creating realistic and varied conversational contexts within a clinic setting is inherently limited. Virtual reality offers the possibility of immersing people in lifelike social scenarios where they can practice authentic communication exchanges.
Giachero and colleagues investigated whether a semi-immersive VR system designed for conversational practice could improve functional communication outcomes for people with aphasia.
What the researchers did
Giachero and colleagues at Turin hospitals recruited 36 adults with nonfluent chronic aphasia (age 32-77, mean 59.75) and randomly assigned them to VR or conventional therapy over 6 months at 2 sessions per week (48 sessions total). The VR system was NeuroVR 2.0 (open-source), displayed on a 50-inch curved monitor - a semi-immersive setup in which no patient wore a helmet. Patients interacted with 5 virtual environments (supermarket, restaurant, amusement park, train station, post office) representing everyday conversational situations. The control group received equivalent-duration conventional aphasia therapy.
What they found
No statistically significant between-group differences were found on any measure post-treatment. The previously stated finding that “the VR group showed significantly greater improvement in functional communication” was a mischaracterization of the paper’s results.
Within-group analysis told a more nuanced story: the VR group showed significant within-group improvement on oral comprehension, repetition, and written language; the control group improved on fewer variables. Notably, only the VR group showed improvement on self-esteem and emotional/mood state measures - domains not typically captured by language tests alone.
Why this matters
This pilot RCT provides early evidence that VR-based conversational practice can lead to meaningful improvements in how people with aphasia communicate in daily life. The virtual scenarios allow people to rehearse real-world communicative situations repeatedly and safely, building confidence before encountering similar situations outside the clinic. For clinicians, VR offers a practical way to create the kind of varied, contextually rich practice opportunities that are essential for generalization but difficult to arrange in traditional settings.
Limitations
As a pilot study, the sample size of 36 is relatively modest, and results should be interpreted as preliminary. The specific VR system used may not be widely available, limiting immediate replicability. Details of blinding procedures and potential confounds related to the novelty of VR were not fully addressed. Longer-term follow-up would help establish whether gains persist beyond the study period.
Implications for practice
Semi-immersive VR can provide realistic conversational contexts that are difficult to replicate in a clinical room, supporting more functional communication practice VR-based conversational approaches may be a valuable addition to existing communication support for people with aphasia The ability to control and repeat virtual scenarios allows clinicians to tailor the level of communicative challenge to each person's needs
Where this connects to Therapy withVR
The study above is independent research and does not endorse any product. The notes below are commentary from withVR on how the themes in this research relate to features of Therapy withVR. The research findings are not claims about Therapy withVR.
Avatar Speech via Text Input
This study used VR conversational practice - type any sentence and have avatars speak it, creating the responsive dialog exchanges that improved functional communication in this research.
AI Prompts
Use AI-generated responses to keep conversations flowing naturally - Acknowledge, Clarify, Encourage, and Elaborate buttons create the supportive conversational context this study showed benefits people with aphasia.
Cite this study
If you reference this study in your work, the canonical citation formats are:
@article{giachero2020,
author = {Giachero, A. and Calati, M. and Pia, L. and La Vista, L. and Molo, M. and Rugiero, C. and Fornaro, C. and Marangolo, P.},
title = {Conversational Therapy through Semi-Immersive Virtual Reality Environments for Language Recovery and Psychological Well-being in Post Stroke Aphasia},
journal = {Behavioral Neurology},
year = {2020},
doi = {10.1155/2020/2846046},
url = {https://withvr.app/evidence/studies/giachero-2020}
}TY - JOUR
AU - Giachero, A.
AU - Calati, M.
AU - Pia, L.
AU - La Vista, L.
AU - Molo, M.
AU - Rugiero, C.
AU - Fornaro, C.
AU - Marangolo, P.
TI - Conversational Therapy through Semi-Immersive Virtual Reality Environments for Language Recovery and Psychological Well-being in Post Stroke Aphasia
JO - Behavioral Neurology
PY - 2020
DO - 10.1155/2020/2846046
UR - https://withvr.app/evidence/studies/giachero-2020
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
No withVR BV involvement in funding, study design, or authorship. Summary prepared independently by withVR using the published paper.