Uploaded October 2022 | Updated September 2026, 1 week ago

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Web-like structures in the brain called perineuronal nets (PNNs) surround certain brain cells and play a role in functions like learning and memory. These webs protect structural connections between neurons and act as a physical barrier for new synaptic connections. Lab studies with rodents have suggested that removing these nets aid in the learning of new information.

This is a video from the 2022 Brain Awareness Video Contest.

Created by Natalie Doody.