Nets full of holes catch long-term memories

MEMORY CATCHERS  Durable nets (green) wrap around nerve cells throughout this adult mouse brain (three different brain regions shown). Holes in these nets may store long-term memories, a new study suggests. Nerve cells are marked by red and cell nuclei are blue.  CHICAGO —Tough, stable nets that swaddle nerve cells may be the ultimate memory catchers. These structures, called perineuronal nets, may store long-term memories, scientists reported October 19 at the annual meeting of the Society for Neuroscience. “This is clearly a novel idea and it does, at first glance, look a bit way out,” says neuroscientist Eric Kandel of Columbia University. But there are good reasons to suspect that perineuronal nets hold memories, he says. “I am pleased to see this bold idea put out over the airways.”

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