Improvement of cognitive function by Virtual Spatial Cognitive Training based on spatial cognitive scales and synchronous intensity analysis for EEG signals

Cognitive impairment is a chronic degenerative disease of the central nervous system that seriously affects the quality of life of patients and places a heavy burden on society and families. Among various intervention methods, cognitive training has been widely applied in studies on cognitive improvement in the elderly because of its standardization, systematization, operability, and few side effects. Computerized cognitive training, introduced in recent years, has been used in intervention studies for various cognitive disorders due to its ease of operation and high therapeutic efficiency. Moreover, numerous studies have shown that immersive virtual reality training can improve spatial ability more effectively than traditional computer-based training. In this study, a spatial cognitive training experiment was designed to explore the effects of immersive virtual reality and 2D computer game training on spatial cognitive ability. Thirteen cognitively healthy elderly individuals were recruited and assigned to either the Virtual Community game experimental group or the 2D Angry Birds game control group. Twenty-eight days of cognitive training, along with five sessions of the Virtual City Walking testing game and assessment using spatial cognitive scales, were conducted to evaluate the training effects of the VR game and the 2D game. The experimental results indicated significant differences in spatial cognitive scales, Phase-Locking Value (PLV), and brain networks based on EEG synchronization intensity in the experimental group before and after training. The findings also confirmed that the virtual reality training game developed in this research could effectively enhance the spatial cognitive abilities of the elderly.

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