A brain-computer interface within a virtual reality environment can modulate Default Mode Network activity by targeting the Posterior Cingulate Cortex. An EEG processing pipeline combining Independent Component Analysis with source localization derived a subject-specific spatial filter from resting-state data, applied during a virtual psychedelic experience. Compared to traditional parietal-EEG channel selection, the PCC-filtered method revealed significantly enhanced spectral differentiation between baseline and VR states, including a greater decrease in alpha power and increase in delta power during the virtual hallucination, and a larger dynamic range in both alpha and delta power modulations in response to VR scene changes. This approach offers a more sensitive measure of DMN dynamics for closed-loop BCI systems.
Combining real-time EEG with virtual reality can generate synthetic psychedelic experiences. A passive brain-computer interface dynamically adjusts virtual content to elicit neurocognitive states similar to those of psychedelic trips, including reduced self-referential thought and diminished default mode network engagement. Preliminary results indicate that personalized VR experiences modulate cortical activities and produce unique altered states of consciousness. The approach aims to replicate the cognitive and emotional benefits of psychedelic agents without their risks.
Virtual reality and psychedelic experiences share notable similarities, both capable of altering perception and evoking deep emotional responses. This proof-of-concept study explores combining VR with simulated psychedelic experiences using brain-computer interface systems that leverage real-time EEG feedback to dynamically adjust VR content and target the brain's default mode network. The goal is to replicate the cognitive and emotional benefits of psychedelics without their risks. Initial findings suggest adaptive VR can provide tailored experiences that promote unique altered states of consciousness, potentially leading to novel therapeutic interventions and improved human-computer interaction.