Internal Cognitive Environment Selective Shielding System and Control Method

This paper introduces a defensive Brain–Computer Interface that protects the user’s internal cognitive environment by selectively attenuating neural responses to external stimuli while preserving internally generated thought. By separating and suppressing externally induced neural activity, and integrating safeguards such as probabilistic reality reintroduction and meta-cognitive awareness, the system enhances focus, cognitive stability, and psychological well-being in information-saturated environments.