Researchers have mapped how propofol, a widely used anesthetic, alters brain connectivity to induce unconsciousness. Using fMRI, they found that propofol disrupts connections in the thalamus, reducing complex information processing and limiting sensory integration.

A new study suggests that consciousness may be rooted in quantum processes, as researchers found that a drug binding to microtubules delayed unconsciousness in rats under anesthesia. This discovery supports the idea that anesthesia acts on microtubules, potentially lending weight to the quantum theory of consciousness. The research challenges classical models of brain activity, suggesting that consciousness could be a collective quantum vibration within neurons. These findings could reshape our understanding of consciousness, with implications for anesthesia, brain disorders, and consciousness in non-human animals.

A recent study found increased brain activity in two dying patients, but it does not indicate consciousness. The research revealed gamma wave bursts in comatose patients with epilepsy, but no evidence these were tied to conscious experiences.

A new study proposes a novel approach to studying consciousness through behavioral observations and learning curves. The study highlights that learning often occurs in sudden leaps, suggesting these "eureka moments" are preceded by conscious cognitive processes.

A new study examines the possibility of consciousness in artificial systems, focusing on ruling out scenarios where AI appears conscious without actually being so. Using the free energy principle, the study highlights that while some information processes of living organisms can be simulated by computers, the causal structure differences between brains and computers may be crucial for consciousness. This approach aims to prevent the inadvertent creation of artificial consciousness and mitigate deception by seemingly conscious AI.

Mindfulness training can lead to altered states of consciousness, such as disembodiment and unity. Researchers found that participants were twice as likely to experience these states compared to a control group. While these experiences can be positive, they may also be startling or unpleasant. Mindfulness teachers and students should discuss these potential side effects.