A VR-based cognitive ability testing system and a method for AD patients, applicable to a wearable apparatus (1). The method comprises steps of: sequentially displaying words in a testing word set on a virtual reality device (11) according to a pre-determined period; prompting a patient to respond to a word displayed on the virtual reality device (11); when the display of the words in the testing word set ends, prompting the patient to respond with words they remember; acquiring the words in the patient's response, performing voice recognition processing, and acquiring a processed response-word set; and counting, according to the response-word set, the number of words not recalled by the patient in the current test. The method adopts VR to repeatedly test the cognitive ability of a patient, thereby saving labor costs, and enhancing the level of interaction and enjoyability during testing.
VR-BASED COGNITIVE ABILITY TESTING SYSTEM AND METHOD FOR AD PATIENTS