Biologists who studied the brains of so-called “SuperAgers” discovered a set of enlarged
SuperAgers is a group of older people80 years old with exceptional episodic memory, at least as good as people 20–30 years younger. Research into what differentiates the brains of these super-aged adults from the typical older adult brain has led to exciting discoveries over the past few years. They are not only about memory, but also about how they curb neurological degeneration.
PET scan shows their brains are differentless accumulation of toxic brain plaques and tangles associated with Alzheimer's disease. An MRI scan showed that his neural network and connections are more consistent with young people. Other studies of visual memory, in particular, have shown that their brain activity is similar to that of a 25-year-old person.
This is the basis of a new study by scientistsfrom Northwestern University. Biologists have focused on the entorhinal cortex, an area of the brain responsible for memory. She is one of the first to suffer from Alzheimer's disease. Experts studied six post-mortem brains of “super-old people” and found larger, healthier neurons in one of the six layers that make up this area. They were compared with those of seven cognitively average older adults, six younger subjects, and five subjects with early-stage Alzheimer's disease. It turned out that these “superneurons” are much larger.
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