Cognitive function evaluation system and method based on virtual reality

Abstract

The invention relates to the technical field of VR evaluation, in particular to a cognitive function evaluation system and method based on virtual reality, and the system comprises a VR task module which is used for providing an immersive virtual reality game and a virtual scene of the virtual reality game; a man-machine interaction module which is used for realizing interaction between a user and a virtual scene; a game data acquisition module which is used for acquiring behavior data of a user in a virtual reality task induction state; a game data acquisition module which synchronously processes the behavior data, stores the behavior data and sends the behavior data to a data processing module; the data processing module which is used for preprocessing the behavior data and extracting characteristic parameters to obtain behavior data characteristic parameters; and an intelligent evaluation module which is used for training a machine learning regression model and performing score prediction of the cognitive function on the behavior data of the user to obtain a cognitive function evaluation result. According to the method, the cognitive function capability of the user is accurately evaluated through the behavior data in the virtual reality task induction state, the evaluation mode is convenient and easy to use, and the evaluation result is accurate.

Description

technical field [0001] The invention relates to the technical field of VR evaluation, in particular to a virtual reality-based cognitive function evaluation system and method. Background technique [0002] Cognitive function is the psychological function of the human brain to recognize and reflect objective things, including various abilities such as processing speed, visual space, and executive function. Cognitive processing speed reflects the conduction speed and operating efficiency of the brain's neural network, and is a general factor reflecting intelligence. At the same time, cognitive processing speed is an intermediary factor between age and cognitive ability, and an important factor affecting cognitive aging. Visuospatial ability refers to the ability to use visual cognition to perceive, represent, reason and manipulate spatial information, and is one of the most important cognitive functions in daily life. A large number of studies have shown that Alzheimer's dis...

AI Technical Summary

Problems solved by technology

Traditional cognitive scales or tasks used to measure cognitive function include number symbol replacement, number comparison, drawing tasks, etc. These scale tasks generally need to be performed in a relatively quiet environment under the guidance of a professional doctor. It takes a lot of time, and the feedback results of tasks are often limited and not precise enough

Beyond that, the assessment process for most scale tasks is generally tedious

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