Based on Steady-State Visual Evoked Potentials (SSVEP) technology, combined with an EEG acquisition module and an adaptive control algorithm, this system enables a “mind-controlled” interactive experience for a Sokoban game. Its core principle is to set visual stimuli of different frequencies in the game interface, such as direction control buttons or target areas. When the user gazes at a stimulus with a specific frequency, the visual cortex generates EEG signals synchronized with that frequency, including the fundamental frequency or its harmonics.
The system uses the Canonical Correlation Analysis (CCA) algorithm to analyze EEG signals in real time. By calculating the correlation between the acquired EEG signals and reference frequencies, it accurately identifies the user’s intended direction, such as moving up, down, left, or right, and then drives the game character to complete the Sokoban task. The entire process requires no physical movement and relies solely on visual focus and attention for control.
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