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From imaging neurons to measuring their true activity
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From imaging neurons to measuring their true activity

by  Friedrich Miescher Institute for Biomedical Research Credit: Public Domain When neurons communicate with each another, they transmit—or “fire”—small electrical impulses called action potentials or spikes. These action potentials are the fundamental units of information processing in the brain. Today, neuronal activity is often measured by calcium imaging, which uses advanced microscopy to detect changes in...