Neuroscience

Like social media feeds, our brains take a little while to update

Like our social media feeds, our brains are constantly uploading rich, visual stimuli. But instead of seeing the latest image in real time, we actually see earlier versions because our brain's refresh time is about 15 seconds, ...

Neuroscience

An imaging device for seeing the biochemistry of vision

The biochemistry of vision is a complex process. The molecules supporting the visual pigments that allow us to see our surrounding reality have remained essentially invisible for scientists for a long time. The team led by ...

Psychology & Psychiatry

Sleep deprivation increases serotonin 2a receptor response in brain

The serotonin 2A (5-HT2A) receptor is widely distributed in the brain and plays a critical role in perception, cognition and psychosis. It is also responsible for the psychedelic effects of drugs, such as psilocybin (hallucinogenic ...

Neuroscience

Efficient coding: How the brain optimizes allocation of resources

A collaboration between SISSA and the University of Pennsylvania indicates the existence of an efficient process of sensory coding in rats, suggesting a general principle for optimal use of computational resources. The study, ...

Psychology & Psychiatry

Coffee time: Caffeine improves reaction to moving targets

In the first study of its kind to explore caffeine's effects on dynamic visual skills, researchers concluded that caffeine increases alertness and detection accuracy for moving targets. Caffeine also improved participants' ...

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