Study of virtual reality for mild cognitive impairment: A bibliometric analysis using CiteSpace.

Objectives: Non-invasive and low-cost virtual reality (VR) technology is important for early evaluation and intervention in mild cognitive impairment (MCI). This study aimed to demonstrate the current status of overseas and domestic research as well as the focus and frontier of VR technology among individuals with MCI through a bibliometric analysis.

Methods: Studies from the core collection of Web of Science™ between 1995 and 2020 were used; furthermore, CiteSpace 5.7 R3 was utilized to analyse information on authors/cited authors, keywords, burst words, and cited references.

Results: In total, 230 publications were identified. Most studies were published in the USA (45 publications) and Italy (41 publications), where Guiseppe Riva ranks first (14 publications), and Tarnanas I is the author with the highest centrality (0.44). The hot topics in VR applications in the MCI population are 'physical activity,' 'people,' 'single-blind,' 'disease,' 'walking,' 'technology,' 'working memory,' and 'risk' in recent years. The keyword 'mild cognitive impairment' has attracted extensive attention since 2012, showing the strongest citation outbreak (8.28). The clustering results of the literature show the research types and emerging trends, including 'exergame,' 'serious games,' 'spatial navigation,' 'activities of daily living,' 'exercise,' 'enriched environment' and 'wayfinding.'

Conclusions: Cognitive assessment and nonpharmacological intervention research on patients with MCI have become the focus of dementia prevention in recent years. Virtual technology, combined with traditional methods such as exercise therapy, provides new ideas for innovative cognitive evaluation and cognitive intervention.