PTOtherJournal of neuroengineering and rehabilitation2026

Visual information potentiates incremental VOR adaptation.

Eva Riché, Vincent Lagadec, Denis Pélisson and 3 others

PMID 41520121

WHAT IT FOUND

In healthy adults, virtual reality training increased the eye-stabilizing response more when the full visual field moved than when only a dot did.

Average gain increased 32.5% versus 24.1%.

Key findings

01Eighteen healthy adults (mean age 27.4 years) completed both VR adaptation conditions without interruption.

02Enriched full-field VR produced a significantly larger adapted-side gain increase than Uniform fixation-dot VR: average increases were 32.5% and 24.1%, and post-adaptation mean gains were 1.47 and 1.41.

03Baseline gains in darkness were similar between conditions (1.14 Uniform, 1.11 Enriched), and the non-adapted side did not change significantly after adaptation.

STILL TO COME

How it was doneWhat they foundWhat it means for PTs

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What it does not show

The study tested 18 healthy adults, not patients with vestibular hypofunction, so it does not show what happens in people with dizziness or oscillopsia. The outcome was VOR gain measured in darkness, a laboratory eye-movement ratio, not patient-reported symptoms, dynamic visual acuity, balance, or functional recovery. The sample was small and young (mean age 27.4 years), so older adults or patients with comorbidities may respond differently. No blinding or sham visual condition was reported, and VR novelty or motivation could have contributed to the larger Enriched effect. No long-term retention was measured; gains were recorded immediately after adaptation. The Uniform condition was a VR grey void, not the original dark laser IVE, so differences from prior protocols may not be due only to visual enrichment.

The easy way to misread this

Do not conclude that VR vestibular training helps patients with vestibular hypofunction. This study measured only eye reflex gain in 18 healthy adults and did not test patient symptoms, dynamic visual acuity, or long-term retention.

Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →