TL;DR: Vivid, immersive dreaming makes sleep feel just as deep as complete unconsciousness—both rate identically—while the dim awareness of merely existing feels the shallowest, revealing that sleep depth depends on what’s happening in your mind, not just your brain’s electrical silence. There’s a paradox buried in every night of sleep you’ve ever had. As the …
TL;DR: A psychedelic drug that activates serotonin receptors dramatically amplifies slow 5-Hz brain oscillations in visual and memory regions, suggesting a mechanism for how hallucinogens distort perception by letting internal signals override external reality. Visual perception feels stable, seamless, continuous. But that stability is an illusion orchestrated by your brain. What neuroscientists have long wondered …
Long-term practitioners of Orgasmic Meditation (OM) show distinct patterns of reduced brain metabolism compared to non-meditators, with significant differences in various brain regions involved in cognition, attention, and emotional regulation. Highlights: Reduced Metabolism: OM practitioners exhibit significantly lower metabolic activity in the frontal, temporal, and parietal lobes, as well as the anterior cingulate, insula, and …
New research reveals that the timing of our heartbeats relative to external events distorts our perception of how much time has passed. The study provides evidence that cardiac signals directly impact time perception on a moment-to-moment basis. Key Facts: Time perception was shown to contract during heart systole (when the heart contracts) and expand during …
Artificial intelligence (AI) systems are rapidly becoming more sophisticated and human-like. This raises an intriguing question: could AI systems one day become conscious? A new interdisciplinary paper explores this complex issue, assessing theories about the neural basis of consciousness and their implications for AI. Key takeaways: Current AI systems are not conscious, but there may …
Researchers find similarities in brain activity induced by different psychedelic drugs in rats, providing clues to how they alter consciousness. Key facts: Psychedelic drugs like LSD and ketamine induce high-frequency brain waves that synchronize activity across the cortex. This hypersynchrony was seen between the frontal cortex, sensory areas and emotion centers like the ventral striatum. …
Buddhist meditation practices have been shown to create different states of consciousness. A new study looked at how traditional Buddhist meditation affects how the brain processes sounds. The results show that these meditations change brain activity in a way that tunes out sensory information. Key Facts: 115 Tibetan Buddhist monks with at least 3 years …
