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This study proposes that guard hairs in small mammals function as infrared antennas, tuned to detect thermal radiation from predators, challenging the conventional understanding of mammalian fur functions.
The author acknowledges that the concepts are new and require verification by other research groups, calling for more expert microscopy, broader species surveys, and well-controlled behavioral studies.
- Scientists studied how psilocybin (the active ingredient in magic mushrooms) affects the brain using advanced brain imaging techniques.
- They found that psilocybin causes widespread disruption in how different brain areas communicate with each other, especially in regions involved in complex thinking and self-reflection.
- This disruption, called "desynchronization," was much stronger than the effects of a stimulant drug or normal day-to-day changes in brain activity.
- The intensity of the psychedelic experience reported by participants matched the degree of brain desynchronization observed.
- Some brain changes lasted up to 3 weeks after taking psilocybin, particularly in areas involved in memory and emotion.
- These findings help explain how psilocybin might work to treat mental health conditions and offer new insights into how the brain functions during altered states of consciousness.