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Effects of virtual reality cognitive training in individuals with mild cognitive impairment: A systematic review and
Dongmei Zhong1, Liangying Chen2, Yongshen Feng1
1School of Nursing, Sun Yat-sen University, Guangzhou, China.
Background:
Virtual reality (VR) is used to improve specific health needs by combining multiple technologies; it is increasingly being used in the medical field, showing satisfactory effects, especially in the management of chronic disease. The aim of this study was to assess the effects of VR cognitive training for individuals with mild cognitive impairment (MCI).
Methods:
Peer-reviewed articles were searched from the PubMed, Embase, Web of Science, the Cochrane Library, Science Direct, and EBSCOhost databases, as well as CNKI, Sinomed, Vip. and Wan Fang, through 23 May 2021. We only included randomized controlled trials (RCTs) enrolling participants with MCI.
Results:
Seventeen RCTs were included, with a total of 744 participants. Evidence of moderate quality showed that VR cognitive training significantly enhanced MCI patients' global cognitive function, as measured by the Montreal Cognitive Assessment (standardized mean difference [SMD] = 0.42; 95% confidence interval [CI], 0.04-0.79; p = 0.03) and executive function, as measured by trail making test A (SMD = -0.58; 95% CI, -0.80 to -0.35; p < 0.001). The meta-analysis indicated that the effects of VR cognitive training on delayed memory, immediate memory, attention and instrumental activities of daily living were not statistically significant (p > 0.05).
Conclusion:
The available data showed that VR cognitive training might be beneficial for improving global cognitive function and executive function in individuals with MCI, although the effects were short term.
