The Comprehensive Cognitive Ability is the most basic measurement program to check the user's overall cognitive ability, consisting of a Background Brain waves part to understand the user's basic condition and a Cognitive Ability part to measure cognitive ability by area.The Background Brain waves contains one type of test content that measures background brain waves when external stimuli are blocked. A total of three test contents can be performed by adding Focused Attention, spatial Perception and Working Memory to the cognitive ability test part.